diff --git a/docs/source/_toctree.yml b/docs/source/_toctree.yml
index f1dfe9aae..470319c48 100644
--- a/docs/source/_toctree.yml
+++ b/docs/source/_toctree.yml
@@ -143,6 +143,8 @@
title: OMX
- local: openarm
title: OpenArm
+ - local: rebot_b601
+ title: reBot B601-DM
title: "Robots"
- sections:
- local: phone_teleop
diff --git a/docs/source/rebot_b601.mdx b/docs/source/rebot_b601.mdx
new file mode 100644
index 000000000..adb751560
--- /dev/null
+++ b/docs/source/rebot_b601.mdx
@@ -0,0 +1,186 @@
+# reBot B601-DM
+
+[reBot B601-DM](https://wiki.seeedstudio.com/rebot_arm_b601_dm_lerobot/) is an open-source, low-cost robot arm from Seeed Studio for embodied-AI and imitation learning. It comes as a **follower** arm (the `B601-DM`, a 6-DOF arm plus gripper driven by Damiao CAN motors) and a **leader** arm (the `StarArm102` / `reBot Arm 102`, driven by FashionStar UART smart servos) used to teleoperate it.
+
+This page covers **calibration** and **teleoperation** for both single-arm and bimanual (dual-arm) setups.
+
+
+

+

+
+
+_Left: the B601-DM follower at its zero position. Right: the reBot Arm 102 leader at its zero position. Images courtesy of [Seeed Studio](https://wiki.seeedstudio.com/rebot_arm_b601_dm_lerobot/)._
+
+## Install LeRobot 🤗
+
+Follow our [Installation Guide](./installation), then install the reBot support:
+
+```bash
+pip install -e ".[rebot]"
+```
+
+This pulls in `motorbridge` (CAN motor control for the B601-DM follower) and `motorbridge-smart-servo` (FashionStar UART servos for the reBot Arm 102 leader).
+
+## Registered device types
+
+| Type | Kind |
+| ------------------------ | -------------------------------------------- |
+| `rebot_b601_follower` | single-arm B601-DM follower robot |
+| `bi_rebot_b601_follower` | bimanual (dual-arm) follower robot |
+| `rebot_102_leader` | single-arm reBot Arm 102 leader teleoperator |
+| `bi_rebot_102_leader` | bimanual (dual-arm) leader teleoperator |
+
+The bimanual types compose two single-arm instances and namespace each arm's
+observation/action keys with a `left_` / `right_` prefix. Per-arm settings are
+passed through nested `left_arm_config.*` / `right_arm_config.*` arguments.
+
+## Find the USB ports
+
+For each device, find the USB port associated with its motor bus using:
+
+```bash
+lerobot-find-port
+```
+
+
+ On Linux, remove `brltty` (`sudo apt remove brltty`) so it does not hold the
+ leader's USB serial port. You may also need to grant access to the serial
+ devices: `sudo chmod 666 /dev/ttyACM* /dev/ttyUSB*`.
+
+
+## Calibration
+
+Neither arm stores a persistent hardware calibration: every time it connects, the motors are re-zeroed against the pose the arm is physically holding. Calibration simply records that zero pose. When prompted, **manually move the arm to its zero position** (the default sit-down pose shown above, gripper fully closed) and press ENTER.
+
+### Follower (B601-DM)
+
+
+
+
+```bash
+lerobot-calibrate \
+ --robot.type=rebot_b601_follower \
+ --robot.port=/dev/ttyACM0 \
+ --robot.id=follower \
+ --robot.can_adapter=damiao
+```
+
+
+
+
+Connect the bimanual follower; calibration runs for the left arm, then the right arm.
+
+```bash
+lerobot-calibrate \
+ --robot.type=bi_rebot_b601_follower \
+ --robot.id=bi_follower \
+ --robot.left_arm_config.port=/dev/ttyACM0 \
+ --robot.left_arm_config.can_adapter=damiao \
+ --robot.right_arm_config.port=/dev/ttyACM1 \
+ --robot.right_arm_config.can_adapter=damiao
+```
+
+Per-arm calibration files are saved with `_left` / `_right` suffixes on the id.
+
+
+
+
+### Leader (reBot Arm 102)
+
+
+
+
+```bash
+lerobot-calibrate \
+ --teleop.type=rebot_102_leader \
+ --teleop.port=/dev/ttyUSB0 \
+ --teleop.id=leader
+```
+
+
+
+
+```bash
+lerobot-calibrate \
+ --teleop.type=bi_rebot_102_leader \
+ --teleop.id=bi_leader \
+ --teleop.left_arm_config.port=/dev/ttyUSB0 \
+ --teleop.right_arm_config.port=/dev/ttyUSB1
+```
+
+
+
+
+## Teleoperation
+
+Once both arms are calibrated, drive the follower with the leader. The follower talks to its CAN bus through a Damiao serial bridge (`can_adapter=damiao`, the default) or a SocketCAN adapter (`can_adapter=socketcan`). See the [OpenArm page](./openarm) for more details on the SocketCAN adapter configuration.
+
+
+
+
+```bash
+lerobot-teleoperate \
+ --robot.type=rebot_b601_follower \
+ --robot.port=/dev/ttyACM0 \
+ --robot.id=follower \
+ --robot.can_adapter=damiao \
+ --teleop.type=rebot_102_leader \
+ --teleop.port=/dev/ttyUSB0 \
+ --teleop.id=leader
+```
+
+
+
+
+The bimanual leader and follower reuse the single-arm classes; each arm is
+configured through nested `left_arm_config.*` / `right_arm_config.*` arguments,
+so a bimanual reBot Arm 102 leader drives a bimanual B601-DM follower.
+
+```bash
+lerobot-teleoperate \
+ --robot.type=bi_rebot_b601_follower \
+ --robot.id=bi_follower \
+ --robot.left_arm_config.port=/dev/ttyACM0 \
+ --robot.left_arm_config.can_adapter=damiao \
+ --robot.right_arm_config.port=/dev/ttyACM1 \
+ --robot.right_arm_config.can_adapter=damiao \
+ --teleop.type=bi_rebot_102_leader \
+ --teleop.id=bi_leader \
+ --teleop.left_arm_config.port=/dev/ttyUSB0 \
+ --teleop.right_arm_config.port=/dev/ttyUSB1
+```
+
+
+
+
+
+ The leader and follower share the same joint names (`shoulder_pan,
+ shoulder_lift, elbow_flex, wrist_flex, wrist_yaw, wrist_roll, gripper`), so
+ leader actions map directly onto the follower.
+
+
+If the motion of a joint is reversed, flip its sign in the leader's `joint_directions` (the gripper also carries a scale to widen its range to the follower):
+
+```bash
+lerobot-teleoperate \
+ --robot.type=rebot_b601_follower \
+ --robot.port=/dev/ttyACM0 \
+ --robot.can_adapter=damiao \
+ --teleop.type=rebot_102_leader \
+ --teleop.port=/dev/ttyUSB0 \
+ --teleop.joint_directions='{"shoulder_pan":-1,"shoulder_lift":-1,"elbow_flex":1,"wrist_flex":1,"wrist_yaw":1,"wrist_roll":-1,"gripper":-6}'
+```
+
+## Recording datasets
+
+Swap `lerobot-teleoperate` for `lerobot-record` (with the same `--robot.*` / `--teleop.*` arguments, plus `--dataset.*`) to record demonstrations for training. See [Imitation Learning for Robots](./il_robots) for the full workflow.
+
+For hardware assembly and wiring, see the [Seeed Studio reBot wiki](https://wiki.seeedstudio.com/rebot_arm_b601_dm_lerobot/).
diff --git a/pyproject.toml b/pyproject.toml
index f983134ab..93953cd57 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -151,6 +151,8 @@ pyserial-dep = ["pyserial>=3.5,<4.0"]
deepdiff-dep = ["deepdiff>=7.0.1,<9.0.0"]
pynput-dep = ["pynput>=1.7.8,<1.9.0"]
pyzmq-dep = ["pyzmq>=26.2.1,<28.0.0"]
+motorbridge-dep = ["motorbridge>=0.3.2,<0.4.0"]
+motorbridge-smart-servo-dep = ["motorbridge-smart-servo>=0.0.4,<0.1.0"]
# Motors
feetech = ["feetech-servo-sdk>=1.0.0,<2.0.0", "lerobot[pyserial-dep]", "lerobot[deepdiff-dep]"]
@@ -174,6 +176,9 @@ unitree_g1 = [
"lerobot[pygame-dep]",
]
reachy2 = ["reachy2_sdk>=1.0.15,<1.1.0"]
+# Seeed Studio reBot B601-DM follower (motorbridge / CAN) + StarArm102 / reBot Arm 102
+# leader (motorbridge-smart-servo / FashionStar UART servos).
+rebot = ["lerobot[motorbridge-dep]", "lerobot[motorbridge-smart-servo-dep]"]
kinematics = ["lerobot[placo-dep]"]
intelrealsense = [
"pyrealsense2>=2.55.1.6486,<2.57.0 ; sys_platform != 'darwin'",
@@ -260,6 +265,7 @@ all = [
"lerobot[lekiwi]",
"lerobot[openarms]",
"lerobot[reachy2]",
+ "lerobot[rebot]",
"lerobot[kinematics]",
"lerobot[intelrealsense]",
"lerobot[diffusion]",
diff --git a/src/lerobot/robots/bi_rebot_b601_follower/__init__.py b/src/lerobot/robots/bi_rebot_b601_follower/__init__.py
new file mode 100644
index 000000000..8ef454f45
--- /dev/null
+++ b/src/lerobot/robots/bi_rebot_b601_follower/__init__.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .bi_rebot_b601_follower import BiRebotB601Follower
+from .config_bi_rebot_b601_follower import BiRebotB601FollowerConfig
+
+__all__ = ["BiRebotB601Follower", "BiRebotB601FollowerConfig"]
diff --git a/src/lerobot/robots/bi_rebot_b601_follower/bi_rebot_b601_follower.py b/src/lerobot/robots/bi_rebot_b601_follower/bi_rebot_b601_follower.py
new file mode 100644
index 000000000..bd19f1b62
--- /dev/null
+++ b/src/lerobot/robots/bi_rebot_b601_follower/bi_rebot_b601_follower.py
@@ -0,0 +1,150 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+from functools import cached_property
+
+from lerobot.types import RobotAction, RobotObservation
+from lerobot.utils.decorators import check_if_already_connected, check_if_not_connected
+
+from ..rebot_b601_follower import RebotB601Follower, RebotB601FollowerRobotConfig
+from ..robot import Robot
+from .config_bi_rebot_b601_follower import BiRebotB601FollowerConfig
+
+logger = logging.getLogger(__name__)
+
+
+class BiRebotB601Follower(Robot):
+ """Bimanual Seeed Studio reBot B601-DM follower.
+
+ Composes two single-arm :class:`RebotB601Follower` instances. Observation and
+ action keys of each arm are namespaced with a ``left_`` / ``right_`` prefix.
+ """
+
+ config_class = BiRebotB601FollowerConfig
+ name = "bi_rebot_b601_follower"
+
+ def __init__(self, config: BiRebotB601FollowerConfig):
+ super().__init__(config)
+ self.config = config
+
+ left_arm_config = RebotB601FollowerRobotConfig(
+ id=f"{config.id}_left" if config.id else None,
+ calibration_dir=config.calibration_dir,
+ port=config.left_arm_config.port,
+ can_adapter=config.left_arm_config.can_adapter,
+ dm_serial_baud=config.left_arm_config.dm_serial_baud,
+ disable_torque_on_disconnect=config.left_arm_config.disable_torque_on_disconnect,
+ max_relative_target=config.left_arm_config.max_relative_target,
+ cameras=config.left_arm_config.cameras,
+ motor_can_ids=config.left_arm_config.motor_can_ids,
+ pos_vel_velocity=config.left_arm_config.pos_vel_velocity,
+ gripper_torque_ratio=config.left_arm_config.gripper_torque_ratio,
+ joint_limits=config.left_arm_config.joint_limits,
+ )
+
+ right_arm_config = RebotB601FollowerRobotConfig(
+ id=f"{config.id}_right" if config.id else None,
+ calibration_dir=config.calibration_dir,
+ port=config.right_arm_config.port,
+ can_adapter=config.right_arm_config.can_adapter,
+ dm_serial_baud=config.right_arm_config.dm_serial_baud,
+ disable_torque_on_disconnect=config.right_arm_config.disable_torque_on_disconnect,
+ max_relative_target=config.right_arm_config.max_relative_target,
+ cameras=config.right_arm_config.cameras,
+ motor_can_ids=config.right_arm_config.motor_can_ids,
+ pos_vel_velocity=config.right_arm_config.pos_vel_velocity,
+ gripper_torque_ratio=config.right_arm_config.gripper_torque_ratio,
+ joint_limits=config.right_arm_config.joint_limits,
+ )
+
+ self.left_arm = RebotB601Follower(left_arm_config)
+ self.right_arm = RebotB601Follower(right_arm_config)
+
+ # Only for compatibility with parts of the codebase that expect `robot.cameras`.
+ self.cameras = {**self.left_arm.cameras, **self.right_arm.cameras}
+
+ @property
+ def _motors_ft(self) -> dict[str, type]:
+ return {
+ **{f"left_{k}": v for k, v in self.left_arm._motors_ft.items()},
+ **{f"right_{k}": v for k, v in self.right_arm._motors_ft.items()},
+ }
+
+ @property
+ def _cameras_ft(self) -> dict[str, tuple]:
+ return {
+ **{f"left_{k}": v for k, v in self.left_arm._cameras_ft.items()},
+ **{f"right_{k}": v for k, v in self.right_arm._cameras_ft.items()},
+ }
+
+ @cached_property
+ def observation_features(self) -> dict[str, type | tuple]:
+ return {**self._motors_ft, **self._cameras_ft}
+
+ @cached_property
+ def action_features(self) -> dict[str, type]:
+ return self._motors_ft
+
+ @property
+ def is_connected(self) -> bool:
+ return self.left_arm.is_connected and self.right_arm.is_connected
+
+ @check_if_already_connected
+ def connect(self, calibrate: bool = True) -> None:
+ self.left_arm.connect(calibrate)
+ self.right_arm.connect(calibrate)
+
+ @property
+ def is_calibrated(self) -> bool:
+ return self.left_arm.is_calibrated and self.right_arm.is_calibrated
+
+ def calibrate(self) -> None:
+ self.left_arm.calibrate()
+ self.right_arm.calibrate()
+
+ def configure(self) -> None:
+ self.left_arm.configure()
+ self.right_arm.configure()
+
+ @check_if_not_connected
+ def get_observation(self) -> RobotObservation:
+ obs_dict = {}
+ obs_dict.update({f"left_{k}": v for k, v in self.left_arm.get_observation().items()})
+ obs_dict.update({f"right_{k}": v for k, v in self.right_arm.get_observation().items()})
+ return obs_dict
+
+ @check_if_not_connected
+ def send_action(self, action: RobotAction) -> RobotAction:
+ left_action = {
+ key.removeprefix("left_"): value for key, value in action.items() if key.startswith("left_")
+ }
+ right_action = {
+ key.removeprefix("right_"): value for key, value in action.items() if key.startswith("right_")
+ }
+
+ sent_action_left = self.left_arm.send_action(left_action)
+ sent_action_right = self.right_arm.send_action(right_action)
+
+ return {
+ **{f"left_{k}": v for k, v in sent_action_left.items()},
+ **{f"right_{k}": v for k, v in sent_action_right.items()},
+ }
+
+ @check_if_not_connected
+ def disconnect(self) -> None:
+ self.left_arm.disconnect()
+ self.right_arm.disconnect()
diff --git a/src/lerobot/robots/bi_rebot_b601_follower/config_bi_rebot_b601_follower.py b/src/lerobot/robots/bi_rebot_b601_follower/config_bi_rebot_b601_follower.py
new file mode 100644
index 000000000..079b7a355
--- /dev/null
+++ b/src/lerobot/robots/bi_rebot_b601_follower/config_bi_rebot_b601_follower.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dataclasses import dataclass
+
+from ..config import RobotConfig
+from ..rebot_b601_follower import RebotB601FollowerConfig
+
+
+@RobotConfig.register_subclass("bi_rebot_b601_follower")
+@dataclass
+class BiRebotB601FollowerConfig(RobotConfig):
+ """Configuration class for the bimanual reBot B601-DM follower robot."""
+
+ left_arm_config: RebotB601FollowerConfig
+ right_arm_config: RebotB601FollowerConfig
diff --git a/src/lerobot/robots/rebot_b601_follower/__init__.py b/src/lerobot/robots/rebot_b601_follower/__init__.py
new file mode 100644
index 000000000..43fcbb769
--- /dev/null
+++ b/src/lerobot/robots/rebot_b601_follower/__init__.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .config_rebot_b601_follower import RebotB601FollowerConfig, RebotB601FollowerRobotConfig
+from .rebot_b601_follower import RebotB601Follower
+
+__all__ = ["RebotB601Follower", "RebotB601FollowerConfig", "RebotB601FollowerRobotConfig"]
diff --git a/src/lerobot/robots/rebot_b601_follower/config_rebot_b601_follower.py b/src/lerobot/robots/rebot_b601_follower/config_rebot_b601_follower.py
new file mode 100644
index 000000000..096548afb
--- /dev/null
+++ b/src/lerobot/robots/rebot_b601_follower/config_rebot_b601_follower.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dataclasses import dataclass, field
+
+from lerobot.cameras import CameraConfig
+
+from ..config import RobotConfig
+
+
+@dataclass
+class RebotB601FollowerConfig:
+ """Base configuration class for the Seeed Studio reBot B601-DM follower arm.
+
+ The B601-DM is a 6-DOF arm plus gripper driven by Damiao CAN motors. Motor
+ communication goes through the ``motorbridge`` package.
+ """
+
+ # Communication port. For ``can_adapter="damiao"`` this is the Damiao serial
+ # bridge device (e.g. "/dev/ttyACM0"); for ``can_adapter="socketcan"`` it is
+ # the CAN channel name (e.g. "can0").
+ port: str
+
+ # CAN adapter type:
+ # "damiao" - Damiao dedicated serial bridge (default)
+ # "socketcan" - SocketCAN based adapters (PCAN, slcan, embedded controllers, ...)
+ can_adapter: str = "damiao"
+
+ # Baud rate for the Damiao serial bridge (only used when can_adapter="damiao").
+ dm_serial_baud: int = 921600
+
+ disable_torque_on_disconnect: bool = True
+
+ # `max_relative_target` limits the magnitude of the relative positional target
+ # vector for safety purposes (in degrees). Set to a positive scalar to apply the
+ # same value to all motors, or to a dict mapping motor names to per-motor values.
+ max_relative_target: float | dict[str, float] | None = None
+
+ # cameras
+ cameras: dict[str, CameraConfig] = field(default_factory=dict)
+
+ # Maps motor names to their (send_can_id, recv_can_id) pair.
+ motor_can_ids: dict[str, tuple[int, int]] = field(
+ default_factory=lambda: {
+ "shoulder_pan": (0x01, 0x11),
+ "shoulder_lift": (0x02, 0x12),
+ "elbow_flex": (0x03, 0x13),
+ "wrist_flex": (0x04, 0x14),
+ "wrist_yaw": (0x05, 0x15),
+ "wrist_roll": (0x06, 0x16),
+ "gripper": (0x07, 0x17),
+ }
+ )
+
+ # Target velocity for joints running in POS_VEL mode, in degrees/s. A scalar is
+ # applied to every joint; a list provides one value per joint (in motor order).
+ pos_vel_velocity: float | list[float] = field(default_factory=lambda: [150.0] * 7)
+
+ # Torque/current ratio for the gripper's FORCE_POS mode, in range [0, 1].
+ gripper_torque_ratio: float = 0.1
+
+ # Soft joint limits (degrees). These are clipped against on every action.
+ joint_limits: dict[str, tuple[float, float]] = field(
+ default_factory=lambda: {
+ "shoulder_pan": (-145.0, 145.0),
+ "shoulder_lift": (-170.0, 1.0),
+ "elbow_flex": (-200.0, 1.0),
+ "wrist_flex": (-80.0, 90.0),
+ "wrist_yaw": (-90.0, 90.0),
+ "wrist_roll": (-90.0, 90.0),
+ "gripper": (-270.0, 0.0),
+ }
+ )
+
+
+@RobotConfig.register_subclass("rebot_b601_follower")
+@dataclass
+class RebotB601FollowerRobotConfig(RobotConfig, RebotB601FollowerConfig):
+ """Registered configuration for the reBot B601-DM follower robot."""
+
+ pass
diff --git a/src/lerobot/robots/rebot_b601_follower/rebot_b601_follower.py b/src/lerobot/robots/rebot_b601_follower/rebot_b601_follower.py
new file mode 100644
index 000000000..ec00f4aa9
--- /dev/null
+++ b/src/lerobot/robots/rebot_b601_follower/rebot_b601_follower.py
@@ -0,0 +1,289 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import math
+import time
+from functools import cached_property
+from typing import TYPE_CHECKING
+
+from lerobot.cameras import make_cameras_from_configs
+from lerobot.motors import MotorCalibration
+from lerobot.types import RobotAction, RobotObservation
+from lerobot.utils.decorators import check_if_already_connected, check_if_not_connected
+from lerobot.utils.import_utils import _motorbridge_available, require_package
+
+from ..robot import Robot
+from ..utils import ensure_safe_goal_position
+from .config_rebot_b601_follower import RebotB601FollowerRobotConfig
+
+if TYPE_CHECKING or _motorbridge_available:
+ from motorbridge import Controller as MotorBridgeController, Mode as MotorBridgeMode
+else:
+ MotorBridgeController = None
+ MotorBridgeMode = None
+
+logger = logging.getLogger(__name__)
+
+# Joint controlled in FORCE_POS mode; every other joint runs in POS_VEL mode.
+GRIPPER_MOTOR = "gripper"
+# Per-joint Damiao motor models for the B601-DM (passed to motorbridge).
+MOTOR_MODELS = {
+ "shoulder_pan": "4340P",
+ "shoulder_lift": "4340P",
+ "elbow_flex": "4340P",
+ "wrist_flex": "4310",
+ "wrist_yaw": "4310",
+ "wrist_roll": "4310",
+ "gripper": "4310",
+}
+_ENSURE_MODE_RETRIES = 9
+_SETTLE_SEC = 0.01
+_ZERO_SETTLE_SEC = 0.1
+
+
+class RebotB601Follower(Robot):
+ """Seeed Studio reBot B601-DM follower arm (6-DOF + gripper, Damiao CAN motors).
+
+ Motor communication is handled by the ``motorbridge`` package over a CAN bus,
+ reached either through a Damiao serial bridge or a SocketCAN adapter.
+ """
+
+ config_class = RebotB601FollowerRobotConfig
+ name = "rebot_b601_follower"
+
+ def __init__(self, config: RebotB601FollowerRobotConfig):
+ require_package("motorbridge", extra="rebot")
+ super().__init__(config)
+ self.config = config
+ self.bus: MotorBridgeController | None = None
+ self.motors: dict = {}
+ self.motor_names = list(config.motor_can_ids.keys())
+ self.cameras = make_cameras_from_configs(config.cameras)
+
+ @property
+ def _motors_ft(self) -> dict[str, type]:
+ return {f"{motor}.pos": float for motor in self.motor_names}
+
+ @property
+ def _cameras_ft(self) -> dict[str, tuple]:
+ return {
+ cam: (self.config.cameras[cam].height, self.config.cameras[cam].width, 3) for cam in self.cameras
+ }
+
+ @cached_property
+ def observation_features(self) -> dict[str, type | tuple]:
+ return {**self._motors_ft, **self._cameras_ft}
+
+ @cached_property
+ def action_features(self) -> dict[str, type]:
+ return self._motors_ft
+
+ @property
+ def is_connected(self) -> bool:
+ return self.bus is not None and all(cam.is_connected for cam in self.cameras.values())
+
+ @check_if_already_connected
+ def connect(self, calibrate: bool = True) -> None:
+ logger.info(f"Connecting {self} on {self.config.port} (adapter={self.config.can_adapter})...")
+ if self.config.can_adapter == "damiao":
+ self.bus = MotorBridgeController.from_dm_serial(
+ serial_port=self.config.port,
+ baud=self.config.dm_serial_baud,
+ )
+ elif self.config.can_adapter == "socketcan":
+ self.bus = MotorBridgeController(channel=self.config.port)
+ else:
+ raise ValueError(
+ f"Unsupported can_adapter '{self.config.can_adapter}'. Use 'damiao' or 'socketcan'."
+ )
+
+ for motor_name, (send_id, recv_id) in self.config.motor_can_ids.items():
+ self.motors[motor_name] = self.bus.add_damiao_motor(send_id, recv_id, MOTOR_MODELS[motor_name])
+
+ if not self.is_calibrated and calibrate:
+ logger.info(
+ "Mismatch between calibration values in the motor and the calibration file or no calibration file found"
+ )
+ self.calibrate()
+
+ for cam in self.cameras.values():
+ cam.connect()
+
+ self.configure()
+ logger.info(f"{self} connected.")
+
+ @property
+ def is_calibrated(self) -> bool:
+ return bool(self.calibration)
+
+ def calibrate(self) -> None:
+ if self.calibration:
+ user_input = input(
+ f"Press ENTER to use provided calibration file associated with the id {self.id}, "
+ "or type 'c' and press ENTER to run calibration: "
+ )
+ if user_input.strip().lower() != "c":
+ logger.info(f"Using calibration file associated with the id {self.id}")
+ return
+
+ logger.info(f"\nRunning calibration of {self}")
+ self.bus.disable_all()
+ print(
+ "\nCalibration: set zero position.\n"
+ "Manually move the reBot B601 to its ZERO POSITION and close the gripper.\n"
+ "See the B601 manual for the zero pose (the default sit-down position).\n"
+ )
+ input("Press ENTER when ready...")
+
+ for motor in self.motors.values():
+ motor.set_zero_position()
+ time.sleep(_ZERO_SETTLE_SEC)
+ logger.info("Arm zero position set.")
+
+ self.calibration = {}
+ for motor_name, (send_id, _recv_id) in self.config.motor_can_ids.items():
+ range_min, range_max = self.config.joint_limits[motor_name]
+ self.calibration[motor_name] = MotorCalibration(
+ id=send_id,
+ drive_mode=0,
+ homing_offset=0,
+ range_min=int(range_min),
+ range_max=int(range_max),
+ )
+
+ self._save_calibration()
+ print(f"Calibration saved to {self.calibration_fpath}")
+
+ def configure(self) -> None:
+ self.bus.enable_all()
+ for motor_name, motor in self.motors.items():
+ target_mode = (
+ MotorBridgeMode.FORCE_POS if motor_name == GRIPPER_MOTOR else MotorBridgeMode.POS_VEL
+ )
+ for attempt in range(_ENSURE_MODE_RETRIES + 1):
+ try:
+ motor.ensure_mode(target_mode)
+ break
+ except Exception:
+ if attempt == _ENSURE_MODE_RETRIES:
+ raise
+ time.sleep(_SETTLE_SEC)
+ logger.debug(f"{motor_name} mode set to {target_mode}")
+
+ @check_if_not_connected
+ def disable_torque(self) -> None:
+ """Disable motor torque so the arm can be moved by hand (read-only debugging)."""
+ self.bus.disable_all()
+ logger.info(f"{self} torque disabled.")
+
+ def _present_pos(self) -> dict[str, float]:
+ """Read present joint positions in degrees."""
+ for motor in self.motors.values():
+ motor.request_feedback()
+ try:
+ self.bus.poll_feedback_once()
+ except Exception:
+ logger.warning("CAN bus poll feedback failed.")
+
+ present_pos = {}
+ for motor_name, motor in self.motors.items():
+ state = motor.get_state()
+ present_pos[motor_name] = math.degrees(state.pos) if state is not None else 0.0
+ return present_pos
+
+ @check_if_not_connected
+ def get_observation(self) -> RobotObservation:
+ start = time.perf_counter()
+ obs_dict = {f"{motor}.pos": pos for motor, pos in self._present_pos().items()}
+ dt_ms = (time.perf_counter() - start) * 1e3
+ logger.debug(f"{self} read state: {dt_ms:.1f}ms")
+
+ for cam_key, cam in self.cameras.items():
+ start = time.perf_counter()
+ obs_dict[cam_key] = cam.read_latest()
+ dt_ms = (time.perf_counter() - start) * 1e3
+ logger.debug(f"{self} read {cam_key}: {dt_ms:.1f}ms")
+
+ return obs_dict
+
+ @check_if_not_connected
+ def send_action(self, action: RobotAction) -> RobotAction:
+ """Command the arm to a target joint configuration.
+
+ Positions are expressed in degrees. The relative action magnitude may be
+ clipped depending on `max_relative_target`, so the action actually sent is
+ always returned.
+ """
+ goal_pos = {key.removesuffix(".pos"): val for key, val in action.items() if key.endswith(".pos")}
+
+ # Clip against soft joint limits.
+ for motor_name in list(goal_pos):
+ if motor_name in self.config.joint_limits:
+ min_limit, max_limit = self.config.joint_limits[motor_name]
+ clipped = max(min_limit, min(max_limit, goal_pos[motor_name]))
+ if clipped != goal_pos[motor_name]:
+ logger.debug(f"Clipped {motor_name} from {goal_pos[motor_name]:.2f} to {clipped:.2f}")
+ goal_pos[motor_name] = clipped
+
+ # Tolerate 6-DOF leaders that have no wrist_yaw joint by holding it at zero.
+ # This is intentional: it lets a 6-DOF leader such as the SO-100 / SO-101
+ # (so100_leader / so101_leader) teleoperate this 7-DOF follower — the missing
+ # wrist_yaw command is simply treated as 0.0 instead of raising.
+ if "wrist_yaw" not in goal_pos:
+ goal_pos["wrist_yaw"] = 0.0
+
+ # Cap relative target when too far from the present position.
+ if self.config.max_relative_target is not None:
+ present_pos = self._present_pos()
+ goal_present_pos = {key: (g, present_pos.get(key, g)) for key, g in goal_pos.items()}
+ goal_pos = ensure_safe_goal_position(goal_present_pos, self.config.max_relative_target)
+
+ for motor_name, position_deg in goal_pos.items():
+ motor = self.motors.get(motor_name)
+ if motor is None:
+ continue
+ idx = self.motor_names.index(motor_name)
+ vel_deg_s = (
+ self.config.pos_vel_velocity[idx]
+ if isinstance(self.config.pos_vel_velocity, list)
+ else self.config.pos_vel_velocity
+ )
+ pos_rad = math.radians(position_deg)
+ vel_rad = math.radians(vel_deg_s)
+ if motor_name == GRIPPER_MOTOR:
+ motor.send_force_pos(pos_rad, vel_rad, self.config.gripper_torque_ratio)
+ else:
+ motor.send_pos_vel(pos_rad, vel_rad)
+
+ return {f"{motor}.pos": val for motor, val in goal_pos.items()}
+
+ @check_if_not_connected
+ def disconnect(self) -> None:
+ for motor in self.motors.values():
+ if self.config.disable_torque_on_disconnect:
+ motor.disable()
+ motor.clear_error()
+ motor.close()
+
+ self.bus.close()
+ self.bus = None
+ self.motors = {}
+
+ for cam in self.cameras.values():
+ cam.disconnect()
+
+ logger.info(f"{self} disconnected.")
diff --git a/src/lerobot/robots/utils.py b/src/lerobot/robots/utils.py
index 92da597f1..f897a560e 100644
--- a/src/lerobot/robots/utils.py
+++ b/src/lerobot/robots/utils.py
@@ -68,6 +68,14 @@ def make_robot_from_config(config: RobotConfig) -> Robot:
from .bi_openarm_follower import BiOpenArmFollower
return BiOpenArmFollower(config)
+ elif config.type == "rebot_b601_follower":
+ from .rebot_b601_follower import RebotB601Follower
+
+ return RebotB601Follower(config)
+ elif config.type == "bi_rebot_b601_follower":
+ from .bi_rebot_b601_follower import BiRebotB601Follower
+
+ return BiRebotB601Follower(config)
elif config.type == "mock_robot":
from tests.mocks.mock_robot import MockRobot
diff --git a/src/lerobot/scripts/lerobot_calibrate.py b/src/lerobot/scripts/lerobot_calibrate.py
index e68d7438b..e43736954 100644
--- a/src/lerobot/scripts/lerobot_calibrate.py
+++ b/src/lerobot/scripts/lerobot_calibrate.py
@@ -39,6 +39,7 @@ from lerobot.robots import ( # noqa: F401
Robot,
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
hope_jr,
koch_follower,
@@ -46,12 +47,14 @@ from lerobot.robots import ( # noqa: F401
make_robot_from_config,
omx_follower,
openarm_follower,
+ rebot_b601_follower,
so_follower,
)
from lerobot.teleoperators import ( # noqa: F401
Teleoperator,
TeleoperatorConfig,
bi_openarm_leader,
+ bi_rebot_102_leader,
bi_so_leader,
homunculus,
koch_leader,
@@ -59,6 +62,7 @@ from lerobot.teleoperators import ( # noqa: F401
omx_leader,
openarm_leader,
openarm_mini,
+ rebot_102_leader,
so_leader,
unitree_g1,
)
diff --git a/src/lerobot/scripts/lerobot_find_joint_limits.py b/src/lerobot/scripts/lerobot_find_joint_limits.py
index c4f867631..5b9166a2e 100644
--- a/src/lerobot/scripts/lerobot_find_joint_limits.py
+++ b/src/lerobot/scripts/lerobot_find_joint_limits.py
@@ -45,16 +45,19 @@ from lerobot.model import RobotKinematics
from lerobot.robots import ( # noqa: F401
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
koch_follower,
make_robot_from_config,
omx_follower,
openarm_follower,
+ rebot_b601_follower,
so_follower,
)
from lerobot.teleoperators import ( # noqa: F401
TeleoperatorConfig,
bi_openarm_leader,
+ bi_rebot_102_leader,
bi_so_leader,
gamepad,
koch_leader,
@@ -62,6 +65,7 @@ from lerobot.teleoperators import ( # noqa: F401
omx_leader,
openarm_leader,
openarm_mini,
+ rebot_102_leader,
so_leader,
)
from lerobot.utils.robot_utils import precise_sleep
diff --git a/src/lerobot/scripts/lerobot_record.py b/src/lerobot/scripts/lerobot_record.py
index c8419cb14..c411ebf9e 100644
--- a/src/lerobot/scripts/lerobot_record.py
+++ b/src/lerobot/scripts/lerobot_record.py
@@ -120,6 +120,7 @@ from lerobot.robots import ( # noqa: F401
Robot,
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
earthrover_mini_plus,
hope_jr,
@@ -128,6 +129,7 @@ from lerobot.robots import ( # noqa: F401
omx_follower,
openarm_follower,
reachy2,
+ rebot_b601_follower,
so_follower,
unitree_g1 as unitree_g1_robot,
)
@@ -135,6 +137,7 @@ from lerobot.teleoperators import ( # noqa: F401
Teleoperator,
TeleoperatorConfig,
bi_openarm_leader,
+ bi_rebot_102_leader,
bi_so_leader,
homunculus,
koch_leader,
@@ -143,6 +146,7 @@ from lerobot.teleoperators import ( # noqa: F401
openarm_leader,
openarm_mini,
reachy2_teleoperator,
+ rebot_102_leader,
so_leader,
unitree_g1,
)
diff --git a/src/lerobot/scripts/lerobot_replay.py b/src/lerobot/scripts/lerobot_replay.py
index 41d2926cc..1851f7c2b 100644
--- a/src/lerobot/scripts/lerobot_replay.py
+++ b/src/lerobot/scripts/lerobot_replay.py
@@ -56,6 +56,7 @@ from lerobot.robots import ( # noqa: F401
Robot,
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
earthrover_mini_plus,
hope_jr,
@@ -64,6 +65,7 @@ from lerobot.robots import ( # noqa: F401
omx_follower,
openarm_follower,
reachy2,
+ rebot_b601_follower,
so_follower,
unitree_g1,
)
diff --git a/src/lerobot/scripts/lerobot_rollout.py b/src/lerobot/scripts/lerobot_rollout.py
index 7015e707c..3378b6de4 100644
--- a/src/lerobot/scripts/lerobot_rollout.py
+++ b/src/lerobot/scripts/lerobot_rollout.py
@@ -144,6 +144,7 @@ from lerobot.robots import ( # noqa: F401
Robot,
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
earthrover_mini_plus,
hope_jr,
@@ -151,6 +152,7 @@ from lerobot.robots import ( # noqa: F401
omx_follower,
openarm_follower,
reachy2,
+ rebot_b601_follower,
so_follower,
unitree_g1 as unitree_g1_robot,
)
@@ -159,6 +161,7 @@ from lerobot.teleoperators import ( # noqa: F401
Teleoperator,
TeleoperatorConfig,
bi_openarm_leader,
+ bi_rebot_102_leader,
bi_so_leader,
homunculus,
koch_leader,
@@ -166,6 +169,7 @@ from lerobot.teleoperators import ( # noqa: F401
openarm_leader,
openarm_mini,
reachy2_teleoperator,
+ rebot_102_leader,
so_leader,
unitree_g1,
)
diff --git a/src/lerobot/scripts/lerobot_setup_motors.py b/src/lerobot/scripts/lerobot_setup_motors.py
index 2c962a6e2..69ebcf5fa 100644
--- a/src/lerobot/scripts/lerobot_setup_motors.py
+++ b/src/lerobot/scripts/lerobot_setup_motors.py
@@ -30,20 +30,24 @@ import draccus
from lerobot.robots import ( # noqa: F401
RobotConfig,
+ bi_rebot_b601_follower,
bi_so_follower,
koch_follower,
lekiwi,
make_robot_from_config,
omx_follower,
+ rebot_b601_follower,
so_follower,
)
from lerobot.teleoperators import ( # noqa: F401
TeleoperatorConfig,
+ bi_rebot_102_leader,
bi_so_leader,
koch_leader,
make_teleoperator_from_config,
omx_leader,
openarm_mini,
+ rebot_102_leader,
so_leader,
)
diff --git a/src/lerobot/scripts/lerobot_teleoperate.py b/src/lerobot/scripts/lerobot_teleoperate.py
index 76157595e..2ff02bda0 100644
--- a/src/lerobot/scripts/lerobot_teleoperate.py
+++ b/src/lerobot/scripts/lerobot_teleoperate.py
@@ -72,6 +72,7 @@ from lerobot.robots import ( # noqa: F401
Robot,
RobotConfig,
bi_openarm_follower,
+ bi_rebot_b601_follower,
bi_so_follower,
earthrover_mini_plus,
hope_jr,
@@ -80,6 +81,7 @@ from lerobot.robots import ( # noqa: F401
omx_follower,
openarm_follower,
reachy2,
+ rebot_b601_follower,
so_follower,
unitree_g1 as unitree_g1_robot,
)
@@ -87,6 +89,7 @@ from lerobot.teleoperators import ( # noqa: F401
Teleoperator,
TeleoperatorConfig,
bi_openarm_leader,
+ bi_rebot_102_leader,
bi_so_leader,
gamepad,
homunculus,
@@ -97,6 +100,7 @@ from lerobot.teleoperators import ( # noqa: F401
openarm_leader,
openarm_mini,
reachy2_teleoperator,
+ rebot_102_leader,
so_leader,
unitree_g1,
)
diff --git a/src/lerobot/teleoperators/bi_rebot_102_leader/__init__.py b/src/lerobot/teleoperators/bi_rebot_102_leader/__init__.py
new file mode 100644
index 000000000..c15cf76d8
--- /dev/null
+++ b/src/lerobot/teleoperators/bi_rebot_102_leader/__init__.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .bi_rebot_102_leader import BiRebotArm102Leader
+from .config_bi_rebot_102_leader import BiRebotArm102LeaderConfig
+
+__all__ = ["BiRebotArm102Leader", "BiRebotArm102LeaderConfig"]
diff --git a/src/lerobot/teleoperators/bi_rebot_102_leader/bi_rebot_102_leader.py b/src/lerobot/teleoperators/bi_rebot_102_leader/bi_rebot_102_leader.py
new file mode 100644
index 000000000..a4e5fd8c6
--- /dev/null
+++ b/src/lerobot/teleoperators/bi_rebot_102_leader/bi_rebot_102_leader.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+from functools import cached_property
+
+from lerobot.types import RobotAction
+from lerobot.utils.decorators import check_if_already_connected, check_if_not_connected
+
+from ..rebot_102_leader import RebotArm102Leader, RebotArm102LeaderTeleopConfig
+from ..teleoperator import Teleoperator
+from .config_bi_rebot_102_leader import BiRebotArm102LeaderConfig
+
+logger = logging.getLogger(__name__)
+
+
+class BiRebotArm102Leader(Teleoperator):
+ """Bimanual Seeed Studio StarArm102 / reBot Arm 102 leader.
+
+ Composes two single-arm :class:`RebotArm102Leader` instances. Action keys of
+ each arm are namespaced with a ``left_`` / ``right_`` prefix, so a bimanual
+ leader can teleoperate a bimanual reBot B601 follower.
+ """
+
+ config_class = BiRebotArm102LeaderConfig
+ name = "bi_rebot_102_leader"
+
+ def __init__(self, config: BiRebotArm102LeaderConfig):
+ super().__init__(config)
+ self.config = config
+
+ left_arm_config = RebotArm102LeaderTeleopConfig(
+ id=f"{config.id}_left" if config.id else None,
+ calibration_dir=config.calibration_dir,
+ port=config.left_arm_config.port,
+ baudrate=config.left_arm_config.baudrate,
+ joint_ids=config.left_arm_config.joint_ids,
+ joint_directions=config.left_arm_config.joint_directions,
+ joint_ranges=config.left_arm_config.joint_ranges,
+ )
+
+ right_arm_config = RebotArm102LeaderTeleopConfig(
+ id=f"{config.id}_right" if config.id else None,
+ calibration_dir=config.calibration_dir,
+ port=config.right_arm_config.port,
+ baudrate=config.right_arm_config.baudrate,
+ joint_ids=config.right_arm_config.joint_ids,
+ joint_directions=config.right_arm_config.joint_directions,
+ joint_ranges=config.right_arm_config.joint_ranges,
+ )
+
+ self.left_arm = RebotArm102Leader(left_arm_config)
+ self.right_arm = RebotArm102Leader(right_arm_config)
+
+ @cached_property
+ def action_features(self) -> dict[str, type]:
+ return {
+ **{f"left_{k}": v for k, v in self.left_arm.action_features.items()},
+ **{f"right_{k}": v for k, v in self.right_arm.action_features.items()},
+ }
+
+ @cached_property
+ def feedback_features(self) -> dict[str, type]:
+ return {}
+
+ @property
+ def is_connected(self) -> bool:
+ return self.left_arm.is_connected and self.right_arm.is_connected
+
+ @check_if_already_connected
+ def connect(self, calibrate: bool = True) -> None:
+ self.left_arm.connect(calibrate)
+ self.right_arm.connect(calibrate)
+
+ @property
+ def is_calibrated(self) -> bool:
+ return self.left_arm.is_calibrated and self.right_arm.is_calibrated
+
+ def calibrate(self) -> None:
+ self.left_arm.calibrate()
+ self.right_arm.calibrate()
+
+ def configure(self) -> None:
+ self.left_arm.configure()
+ self.right_arm.configure()
+
+ @check_if_not_connected
+ def get_action(self) -> RobotAction:
+ action_dict = {}
+ action_dict.update({f"left_{k}": v for k, v in self.left_arm.get_action().items()})
+ action_dict.update({f"right_{k}": v for k, v in self.right_arm.get_action().items()})
+ return action_dict
+
+ def send_feedback(self, feedback: dict[str, float]) -> None:
+ raise NotImplementedError("Feedback is not implemented for the reBot Arm 102 leader.")
+
+ @check_if_not_connected
+ def disconnect(self) -> None:
+ self.left_arm.disconnect()
+ self.right_arm.disconnect()
diff --git a/src/lerobot/teleoperators/bi_rebot_102_leader/config_bi_rebot_102_leader.py b/src/lerobot/teleoperators/bi_rebot_102_leader/config_bi_rebot_102_leader.py
new file mode 100644
index 000000000..265ae26c1
--- /dev/null
+++ b/src/lerobot/teleoperators/bi_rebot_102_leader/config_bi_rebot_102_leader.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dataclasses import dataclass
+
+from ..config import TeleoperatorConfig
+from ..rebot_102_leader import RebotArm102LeaderConfig
+
+
+@TeleoperatorConfig.register_subclass("bi_rebot_102_leader")
+@dataclass
+class BiRebotArm102LeaderConfig(TeleoperatorConfig):
+ """Configuration class for the bimanual reBot Arm 102 leader teleoperator."""
+
+ left_arm_config: RebotArm102LeaderConfig
+ right_arm_config: RebotArm102LeaderConfig
diff --git a/src/lerobot/teleoperators/rebot_102_leader/__init__.py b/src/lerobot/teleoperators/rebot_102_leader/__init__.py
new file mode 100644
index 000000000..a13524707
--- /dev/null
+++ b/src/lerobot/teleoperators/rebot_102_leader/__init__.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from .config_rebot_102_leader import RebotArm102LeaderConfig, RebotArm102LeaderTeleopConfig
+from .rebot_102_leader import RebotArm102Leader
+
+__all__ = ["RebotArm102Leader", "RebotArm102LeaderConfig", "RebotArm102LeaderTeleopConfig"]
diff --git a/src/lerobot/teleoperators/rebot_102_leader/config_rebot_102_leader.py b/src/lerobot/teleoperators/rebot_102_leader/config_rebot_102_leader.py
new file mode 100644
index 000000000..d1beea2ed
--- /dev/null
+++ b/src/lerobot/teleoperators/rebot_102_leader/config_rebot_102_leader.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dataclasses import dataclass, field
+
+from ..config import TeleoperatorConfig
+
+
+@dataclass
+class RebotArm102LeaderConfig:
+ """Base configuration class for the Seeed Studio StarArm102 / reBot Arm 102 leader.
+
+ The reBot Arm 102 is a 7-joint (incl. gripper) leader arm driven by FashionStar
+ UART smart servos. Servo communication goes through ``motorbridge-smart-servo``.
+ """
+
+ # USB-to-UART device the leader arm is connected to (e.g. "/dev/ttyUSB0").
+ port: str
+
+ baudrate: int = 1_000_000
+
+ # Servo id of each joint on the UART bus.
+ joint_ids: dict[str, int] = field(
+ default_factory=lambda: {
+ "shoulder_pan": 0,
+ "shoulder_lift": 1,
+ "elbow_flex": 2,
+ "wrist_flex": 3,
+ "wrist_yaw": 4,
+ "wrist_roll": 5,
+ "gripper": 6,
+ }
+ )
+
+ # Per-joint sign applied to raw servo angles so the leader matches the follower
+ # convention. The gripper additionally carries a scale (e.g. -6) to widen its
+ # range to the reBot B601 follower's gripper travel.
+ joint_directions: dict[str, int] = field(
+ default_factory=lambda: {
+ "shoulder_pan": -1,
+ "shoulder_lift": -1,
+ "elbow_flex": 1,
+ "wrist_flex": 1,
+ "wrist_yaw": 1,
+ "wrist_roll": -1,
+ "gripper": -6,
+ }
+ )
+
+ # Per-joint [min, max] output range in degrees. Matches the reBot B601 follower
+ # joint limits so leader actions can drive the follower key-for-key.
+ joint_ranges: dict[str, list[int]] = field(
+ default_factory=lambda: {
+ "shoulder_pan": [-150, 150],
+ "shoulder_lift": [-170, 1],
+ "elbow_flex": [-200, 1],
+ "wrist_flex": [-80, 90],
+ "wrist_yaw": [-90, 90],
+ "wrist_roll": [-90, 90],
+ "gripper": [-270, 0],
+ }
+ )
+
+
+@TeleoperatorConfig.register_subclass("rebot_102_leader")
+@dataclass
+class RebotArm102LeaderTeleopConfig(TeleoperatorConfig, RebotArm102LeaderConfig):
+ """Registered configuration for the reBot Arm 102 leader teleoperator."""
+
+ pass
diff --git a/src/lerobot/teleoperators/rebot_102_leader/rebot_102_leader.py b/src/lerobot/teleoperators/rebot_102_leader/rebot_102_leader.py
new file mode 100644
index 000000000..f9f10ed69
--- /dev/null
+++ b/src/lerobot/teleoperators/rebot_102_leader/rebot_102_leader.py
@@ -0,0 +1,207 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import time
+from typing import TYPE_CHECKING
+
+from lerobot.motors import MotorCalibration
+from lerobot.types import RobotAction
+from lerobot.utils.decorators import check_if_already_connected, check_if_not_connected
+from lerobot.utils.import_utils import _motorbridge_smart_servo_available, require_package
+
+from ..teleoperator import Teleoperator
+from .config_rebot_102_leader import RebotArm102LeaderTeleopConfig
+
+if TYPE_CHECKING or _motorbridge_smart_servo_available:
+ from motorbridge_smart_servo import FashionStarServo, ServoMonitor
+else:
+ FashionStarServo = None
+ ServoMonitor = None
+
+logger = logging.getLogger(__name__)
+
+_SETTLE_SEC = 0.01
+
+
+class RebotArm102Leader(Teleoperator):
+ """Seeed Studio StarArm102 / reBot Arm 102 leader arm.
+
+ A 7-joint (incl. gripper) leader built on FashionStar UART smart servos. Servo
+ communication is handled by the ``motorbridge-smart-servo`` package; this class
+ only reads joint angles, so it produces actions but accepts no feedback.
+ """
+
+ config_class = RebotArm102LeaderTeleopConfig
+ name = "rebot_102_leader"
+
+ def __init__(self, config: RebotArm102LeaderTeleopConfig):
+ require_package("motorbridge-smart-servo", extra="rebot", import_name="motorbridge_smart_servo")
+ super().__init__(config)
+ self.config = config
+ self.bus: FashionStarServo | None = None
+ self.motor_names = list(config.joint_ids.keys())
+ self._last_raw_positions: dict[str, float] = {}
+
+ @property
+ def action_features(self) -> dict[str, type]:
+ return {f"{motor}.pos": float for motor in self.motor_names}
+
+ @property
+ def feedback_features(self) -> dict[str, type]:
+ return {}
+
+ @property
+ def is_connected(self) -> bool:
+ return self.bus is not None
+
+ @check_if_already_connected
+ def connect(self, calibrate: bool = True) -> None:
+ logger.info(f"Connecting {self} on {self.config.port}...")
+ bus = FashionStarServo(self.config.port, baudrate=self.config.baudrate)
+ try:
+ for motor_name, motor_id in self.config.joint_ids.items():
+ if not bus.ping(motor_id):
+ raise RuntimeError(f"Servo not found for {motor_name} (id={motor_id}).")
+ self._last_raw_positions[motor_name] = 0.0
+ self.bus = bus
+
+ if not self.is_calibrated and calibrate:
+ logger.info(
+ "Mismatch between calibration values in the motor and the calibration file or no calibration file found"
+ )
+ self.calibrate()
+
+ self.configure()
+ except Exception:
+ bus.close()
+ self.bus = None
+ raise
+
+ logger.info(f"{self} connected.")
+
+ @property
+ def is_calibrated(self) -> bool:
+ return bool(self.calibration) and set(self.calibration) == set(self.motor_names)
+
+ def calibrate(self) -> None:
+ if self.calibration:
+ user_input = input(
+ f"Press ENTER to use provided calibration file associated with the id {self.id}, "
+ "or type 'c' and press ENTER to run calibration: "
+ )
+ if user_input.strip().lower() != "c":
+ logger.info(f"Using calibration file associated with the id {self.id}")
+ return
+
+ logger.info(f"\nRunning calibration of {self}")
+ input(
+ "\nCalibration: set zero position.\n"
+ "Manually move the reBot Arm 102 to its zero pose and close the gripper.\n"
+ "Press ENTER when ready..."
+ )
+
+ self.calibration = {}
+ for motor_name, motor_id in self.config.joint_ids.items():
+ self.bus.unlock(motor_id)
+ time.sleep(_SETTLE_SEC)
+ self.bus.set_origin_point(motor_id)
+ range_min, range_max = self.config.joint_ranges[motor_name]
+ self.calibration[motor_name] = MotorCalibration(
+ id=motor_id,
+ drive_mode=0,
+ homing_offset=0,
+ range_min=int(range_min),
+ range_max=int(range_max),
+ )
+
+ self._save_calibration()
+ logger.info(f"Calibration saved to {self.calibration_fpath}")
+
+ def configure(self) -> None:
+ for motor_id in self.config.joint_ids.values():
+ self.bus.unlock(motor_id)
+ time.sleep(_SETTLE_SEC)
+ # Reset the multi-turn counter of each servo individually.
+ for motor_id in self.config.joint_ids.values():
+ self.bus.reset_multi_turn(motor_id)
+
+ def _read_raw_positions(self) -> dict[str, float]:
+ result: dict[int, ServoMonitor | None] = self.bus.sync_monitor(list(self.config.joint_ids.values()))
+ id_to_name = {v: k for k, v in self.config.joint_ids.items()}
+ raw_positions: dict[str, float] = {}
+ for motor_id, monitor in result.items():
+ motor_name = id_to_name[motor_id]
+ if monitor is None:
+ raise RuntimeError(f"Servo {motor_name} (id={motor_id}) has never responded.")
+ raw_positions[motor_name] = monitor.angle_deg
+ return raw_positions
+
+ @staticmethod
+ def _round_to_valid_range(value: float, min_value: float, max_value: float) -> tuple[float, int]:
+ """Unwrap a multi-turn angle into the ±180° window centred on (min+max)/2.
+
+ The servo may report an angle that has accumulated extra full rotations
+ (value = true_angle + N*360). Subtract the nearest whole number of turns
+ to bring it back into [center-180, center+180]. Returns the unwrapped
+ angle and the number of turns removed.
+ """
+ center = (min_value + max_value) / 2.0
+ turns = round((value - center) / 360.0)
+ return value - turns * 360.0, abs(turns)
+
+ @check_if_not_connected
+ def get_action(self) -> RobotAction:
+ start = time.perf_counter()
+ try:
+ raw_positions = self._read_raw_positions()
+ self._last_raw_positions = raw_positions
+ except Exception as e:
+ logger.error(f"Failed to read raw positions: {e}")
+ logger.warning("[EMERGENCY STOP] Hold the follower arm and cut off the main power to the arms.")
+ logger.warning(
+ "[EMERGENCY STOP] Break the teleoperation session and check the leader USB connection or power."
+ )
+ raw_positions = self._last_raw_positions
+
+ action_dict: dict[str, float] = {}
+ for motor_name in self.motor_names:
+ range_min, range_max = self.config.joint_ranges[motor_name]
+ direction = self.config.joint_directions[motor_name]
+ sign = 1.0 if direction >= 0 else -1.0
+ unwrapped, k = self._round_to_valid_range(
+ raw_positions[motor_name], range_min * sign, range_max * sign
+ )
+ position = unwrapped * direction
+ if k > 0:
+ logger.debug(
+ f"Servo {motor_name} (id={self.config.joint_ids[motor_name]}) wrapped {k} * 360°. "
+ f"Unwrapped pos: {unwrapped:.1f}° (raw: {raw_positions[motor_name]:.1f}°)"
+ )
+ action_dict[f"{motor_name}.pos"] = max(float(range_min), min(float(range_max), position))
+
+ dt_ms = (time.perf_counter() - start) * 1e3
+ logger.debug(f"{self} read action: {dt_ms:.1f}ms")
+ return action_dict
+
+ def send_feedback(self, feedback: dict[str, float]) -> None:
+ raise NotImplementedError("Feedback is not implemented for the reBot Arm 102 leader.")
+
+ @check_if_not_connected
+ def disconnect(self) -> None:
+ self.bus.close()
+ self.bus = None
+ logger.info(f"{self} disconnected.")
diff --git a/src/lerobot/teleoperators/utils.py b/src/lerobot/teleoperators/utils.py
index db685f396..5a6d4ecde 100644
--- a/src/lerobot/teleoperators/utils.py
+++ b/src/lerobot/teleoperators/utils.py
@@ -99,6 +99,14 @@ def make_teleoperator_from_config(config: TeleoperatorConfig) -> "Teleoperator":
from .openarm_mini import OpenArmMini
return OpenArmMini(config)
+ elif config.type == "rebot_102_leader":
+ from .rebot_102_leader import RebotArm102Leader
+
+ return RebotArm102Leader(config)
+ elif config.type == "bi_rebot_102_leader":
+ from .bi_rebot_102_leader import BiRebotArm102Leader
+
+ return BiRebotArm102Leader(config)
else:
try:
return cast("Teleoperator", make_device_from_device_class(config))
diff --git a/src/lerobot/utils/import_utils.py b/src/lerobot/utils/import_utils.py
index ef03367eb..5dbce2c5b 100644
--- a/src/lerobot/utils/import_utils.py
+++ b/src/lerobot/utils/import_utils.py
@@ -114,6 +114,10 @@ _dynamixel_sdk_available = is_package_available("dynamixel-sdk", import_name="dy
_feetech_sdk_available = is_package_available("feetech-servo-sdk", import_name="scservo_sdk")
_reachy2_sdk_available = is_package_available("reachy2_sdk")
_can_available = is_package_available("python-can", "can")
+_motorbridge_available = is_package_available("motorbridge")
+_motorbridge_smart_servo_available = is_package_available(
+ "motorbridge-smart-servo", import_name="motorbridge_smart_servo"
+)
_unitree_sdk_available = is_package_available("unitree-sdk2py", "unitree_sdk2py")
_pyrealsense2_available = is_package_available("pyrealsense2") or is_package_available(
"pyrealsense2-macosx", import_name="pyrealsense2"
diff --git a/tests/robots/test_rebot_b601_follower.py b/tests/robots/test_rebot_b601_follower.py
new file mode 100644
index 000000000..553675be0
--- /dev/null
+++ b/tests/robots/test_rebot_b601_follower.py
@@ -0,0 +1,116 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import math
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from lerobot.robots.bi_rebot_b601_follower import BiRebotB601Follower, BiRebotB601FollowerConfig
+from lerobot.robots.rebot_b601_follower import (
+ RebotB601Follower,
+ RebotB601FollowerConfig,
+ RebotB601FollowerRobotConfig,
+)
+
+_MODULE = "lerobot.robots.rebot_b601_follower.rebot_b601_follower"
+
+
+def _make_motor_mock(position_rad: float = 0.0) -> MagicMock:
+ motor = MagicMock(name="MotorMock")
+ state = MagicMock()
+ state.pos = position_rad
+ motor.get_state.return_value = state
+ return motor
+
+
+def _make_bus_mock() -> MagicMock:
+ bus = MagicMock(name="MotorBridgeControllerMock")
+ # add_damiao_motor returns a fresh motor mock; position encodes the call order.
+ bus._motor_count = 0
+
+ def _add_motor(_send_id, _recv_id, _model):
+ bus._motor_count += 1
+ return _make_motor_mock(position_rad=math.radians(bus._motor_count))
+
+ bus.add_damiao_motor.side_effect = _add_motor
+ return bus
+
+
+@pytest.fixture
+def follower():
+ bus_mock = _make_bus_mock()
+ with (
+ patch(f"{_MODULE}.require_package", lambda *a, **kw: None),
+ patch(f"{_MODULE}.MotorBridgeController") as controller_cls,
+ patch(f"{_MODULE}.MotorBridgeMode", MagicMock()),
+ ):
+ controller_cls.from_dm_serial.return_value = bus_mock
+ cfg = RebotB601FollowerRobotConfig(port="/dev/null")
+ robot = RebotB601Follower(cfg)
+ robot.connect(calibrate=False)
+ yield robot
+ if robot.is_connected:
+ robot.disconnect()
+
+
+def test_features_match_joints():
+ with patch(f"{_MODULE}.require_package", lambda *a, **kw: None):
+ robot = RebotB601Follower(RebotB601FollowerRobotConfig(port="/dev/null"))
+ expected = {f"{m}.pos" for m in robot.motor_names}
+ assert set(robot.action_features) == expected
+ assert set(robot.observation_features) == expected
+ assert "gripper.pos" in expected
+
+
+def test_connect_disconnect(follower):
+ assert follower.is_connected
+ follower.disconnect()
+ assert not follower.is_connected
+
+
+def test_get_observation_converts_to_degrees(follower):
+ obs = follower.get_observation()
+ assert set(obs) == {f"{m}.pos" for m in follower.motor_names}
+ # The bus mock seeds each motor's position with its 1-indexed creation order (radians).
+ for idx, motor in enumerate(follower.motor_names, 1):
+ assert obs[f"{motor}.pos"] == pytest.approx(math.degrees(math.radians(idx)))
+
+
+def test_send_action_clips_to_joint_limits(follower):
+ # shoulder_pan limit is (-145, 145); request beyond the upper bound.
+ returned = follower.send_action({"shoulder_pan.pos": 999.0})
+ assert returned["shoulder_pan.pos"] == 145.0
+ follower.motors["shoulder_pan"].send_pos_vel.assert_called_once()
+
+
+def test_send_action_routes_gripper_to_force_pos(follower):
+ follower.send_action({"gripper.pos": -10.0})
+ follower.motors["gripper"].send_force_pos.assert_called_once()
+ follower.motors["gripper"].send_pos_vel.assert_not_called()
+
+
+def test_bimanual_prefixes_features():
+ with patch(f"{_MODULE}.require_package", lambda *a, **kw: None):
+ cfg = BiRebotB601FollowerConfig(
+ left_arm_config=RebotB601FollowerConfig(port="/dev/null0"),
+ right_arm_config=RebotB601FollowerConfig(port="/dev/null1"),
+ )
+ robot = BiRebotB601Follower(cfg)
+ assert any(k.startswith("left_") for k in robot.action_features)
+ assert any(k.startswith("right_") for k in robot.action_features)
+ assert "left_gripper.pos" in robot.action_features
+ assert "right_gripper.pos" in robot.action_features
diff --git a/tests/teleoperators/test_rebot_102_leader.py b/tests/teleoperators/test_rebot_102_leader.py
new file mode 100644
index 000000000..bea10e131
--- /dev/null
+++ b/tests/teleoperators/test_rebot_102_leader.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python
+
+# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from lerobot.teleoperators.bi_rebot_102_leader import BiRebotArm102Leader, BiRebotArm102LeaderConfig
+from lerobot.teleoperators.rebot_102_leader import (
+ RebotArm102Leader,
+ RebotArm102LeaderConfig,
+ RebotArm102LeaderTeleopConfig,
+)
+
+_MODULE = "lerobot.teleoperators.rebot_102_leader.rebot_102_leader"
+
+
+def _make_bus_mock(joint_ids: dict[str, int]) -> MagicMock:
+ bus = MagicMock(name="FashionStarServoMock")
+ bus.ping.return_value = True
+
+ def _sync_monitor(ids):
+ # Report each servo at 5 degrees raw.
+ monitors = {}
+ for servo_id in ids:
+ monitor = MagicMock()
+ monitor.angle_deg = 5.0
+ monitors[servo_id] = monitor
+ return monitors
+
+ bus.sync_monitor.side_effect = _sync_monitor
+ return bus
+
+
+@pytest.fixture
+def leader():
+ cfg = RebotArm102LeaderTeleopConfig(port="/dev/null")
+ bus_mock = _make_bus_mock(cfg.joint_ids)
+ with (
+ patch(f"{_MODULE}.require_package", lambda *a, **kw: None),
+ patch(f"{_MODULE}.FashionStarServo", return_value=bus_mock),
+ ):
+ teleop = RebotArm102Leader(cfg)
+ teleop.connect(calibrate=False)
+ yield teleop
+ if teleop.is_connected:
+ teleop.disconnect()
+
+
+def test_action_features_match_joints():
+ with patch(f"{_MODULE}.require_package", lambda *a, **kw: None):
+ teleop = RebotArm102Leader(RebotArm102LeaderTeleopConfig(port="/dev/null"))
+ assert set(teleop.action_features) == {f"{m}.pos" for m in teleop.motor_names}
+ assert teleop.feedback_features == {}
+
+
+def test_connect_disconnect(leader):
+ assert leader.is_connected
+ leader.disconnect()
+ assert not leader.is_connected
+
+
+def test_get_action_applies_direction_and_clamp(leader):
+ action = leader.get_action()
+ assert set(action) == {f"{m}.pos" for m in leader.motor_names}
+ # shoulder_pan has direction -1, so a +5deg raw reading flips to -5deg.
+ assert action["shoulder_pan.pos"] == pytest.approx(-5.0)
+ # Every joint stays within its configured range.
+ for motor, value in action.items():
+ lo, hi = leader.config.joint_ranges[motor.removesuffix(".pos")]
+ assert lo <= value <= hi
+
+
+def test_send_feedback_not_implemented(leader):
+ with pytest.raises(NotImplementedError):
+ leader.send_feedback({})
+
+
+def test_bimanual_prefixes_features():
+ with patch(f"{_MODULE}.require_package", lambda *a, **kw: None):
+ cfg = BiRebotArm102LeaderConfig(
+ left_arm_config=RebotArm102LeaderConfig(port="/dev/null0"),
+ right_arm_config=RebotArm102LeaderConfig(port="/dev/null1"),
+ )
+ teleop = BiRebotArm102Leader(cfg)
+ assert any(k.startswith("left_") for k in teleop.action_features)
+ assert any(k.startswith("right_") for k in teleop.action_features)
+ assert "left_gripper.pos" in teleop.action_features
+ assert "right_gripper.pos" in teleop.action_features
diff --git a/uv.lock b/uv.lock
index 408a9a351..692029986 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
version = 1
-revision = 2
+revision = 3
requires-python = ">=3.12"
resolution-markers = [
"(python_full_version >= '3.15' and platform_machine == 'AMD64' and sys_platform == 'linux') or (python_full_version >= '3.15' and platform_machine == 'x86_64' and sys_platform == 'linux')",
@@ -1142,7 +1142,7 @@ name = "decord"
version = "0.6.0"
source = { registry = "https://pypi.org/simple" }
dependencies = [
- { name = "numpy", marker = "(platform_machine != 'arm64' and sys_platform == 'darwin') or (platform_machine == 'AMD64' and sys_platform == 'linux') or (platform_machine == 'x86_64' and sys_platform == 'linux') or (sys_platform != 'darwin' and sys_platform != 'linux')" },
+ { name = "numpy", marker = "(platform_machine != 'arm64' and platform_machine != 's390x' and sys_platform == 'darwin') or (platform_machine == 'AMD64' and sys_platform == 'linux') or (platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 's390x' and sys_platform != 'darwin' and sys_platform != 'linux')" },
]
wheels = [
{ url = "https://files.pythonhosted.org/packages/11/79/936af42edf90a7bd4e41a6cac89c913d4b47fa48a26b042d5129a9242ee3/decord-0.6.0-py3-none-manylinux2010_x86_64.whl", hash = "sha256:51997f20be8958e23b7c4061ba45d0efcd86bffd5fe81c695d0befee0d442976", size = 13602299, upload-time = "2021-06-14T21:30:55.486Z" },
@@ -2710,6 +2710,8 @@ all = [
{ name = "matplotlib" },
{ name = "metaworld" },
{ name = "mock-serial", marker = "sys_platform != 'win32'" },
+ { name = "motorbridge" },
+ { name = "motorbridge-smart-servo" },
{ name = "mypy" },
{ name = "num2words" },
{ name = "pandas" },
@@ -2913,6 +2915,12 @@ metaworld = [
{ name = "scipy" },
{ name = "torchcodec", marker = "(platform_machine == 'arm64' and sys_platform == 'darwin') or (platform_machine == 'AMD64' and sys_platform == 'linux') or (platform_machine == 'aarch64' and sys_platform == 'linux') or (platform_machine == 'arm64' and sys_platform == 'linux') or (platform_machine == 'x86_64' and sys_platform == 'linux') or sys_platform == 'win32'" },
]
+motorbridge-dep = [
+ { name = "motorbridge" },
+]
+motorbridge-smart-servo-dep = [
+ { name = "motorbridge-smart-servo" },
+]
multi-task-dit = [
{ name = "diffusers" },
{ name = "transformers" },
@@ -2972,6 +2980,10 @@ qwen-vl-utils-dep = [
reachy2 = [
{ name = "reachy2-sdk" },
]
+rebot = [
+ { name = "motorbridge" },
+ { name = "motorbridge-smart-servo" },
+]
robstride = [
{ name = "python-can" },
]
@@ -3116,6 +3128,8 @@ requires-dist = [
{ name = "lerobot", extras = ["matplotlib-dep"], marker = "extra == 'sarm'" },
{ name = "lerobot", extras = ["matplotlib-dep"], marker = "extra == 'unitree-g1'" },
{ name = "lerobot", extras = ["metaworld"], marker = "extra == 'all'" },
+ { name = "lerobot", extras = ["motorbridge-dep"], marker = "extra == 'rebot'" },
+ { name = "lerobot", extras = ["motorbridge-smart-servo-dep"], marker = "extra == 'rebot'" },
{ name = "lerobot", extras = ["multi-task-dit"], marker = "extra == 'all'" },
{ name = "lerobot", extras = ["notebook"], marker = "extra == 'dev'" },
{ name = "lerobot", extras = ["openarms"], marker = "extra == 'all'" },
@@ -3142,6 +3156,7 @@ requires-dist = [
{ name = "lerobot", extras = ["qwen-vl-utils-dep"], marker = "extra == 'sarm'" },
{ name = "lerobot", extras = ["qwen-vl-utils-dep"], marker = "extra == 'wallx'" },
{ name = "lerobot", extras = ["reachy2"], marker = "extra == 'all'" },
+ { name = "lerobot", extras = ["rebot"], marker = "extra == 'all'" },
{ name = "lerobot", extras = ["robstride"], marker = "extra == 'all'" },
{ name = "lerobot", extras = ["sarm"], marker = "extra == 'all'" },
{ name = "lerobot", extras = ["scipy-dep"], marker = "extra == 'aloha'" },
@@ -3174,6 +3189,8 @@ requires-dist = [
{ name = "meshcat", marker = "extra == 'unitree-g1'", specifier = ">=0.3.0,<0.4.0" },
{ name = "metaworld", marker = "extra == 'metaworld'", specifier = "==3.0.0" },
{ name = "mock-serial", marker = "sys_platform != 'win32' and extra == 'test'", specifier = ">=0.0.1,<0.1.0" },
+ { name = "motorbridge", marker = "extra == 'motorbridge-dep'", specifier = ">=0.3.2,<0.4.0" },
+ { name = "motorbridge-smart-servo", marker = "extra == 'motorbridge-smart-servo-dep'", specifier = ">=0.0.4,<0.1.0" },
{ name = "mypy", marker = "extra == 'dev'", specifier = ">=1.19.1" },
{ name = "ninja", marker = "extra == 'groot'", specifier = ">=1.11.1,<2.0.0" },
{ name = "num2words", marker = "extra == 'smolvla'", specifier = ">=0.5.14,<0.6.0" },
@@ -3227,7 +3244,7 @@ requires-dist = [
{ name = "transformers", marker = "extra == 'transformers-dep'", specifier = ">=5.4.0,<5.6.0" },
{ name = "wandb", marker = "extra == 'training'", specifier = ">=0.24.0,<0.25.0" },
]
-provides-extras = ["dataset", "training", "hardware", "viz", "core-scripts", "evaluation", "dataset-viz", "av-dep", "pygame-dep", "placo-dep", "transformers-dep", "grpcio-dep", "can-dep", "peft-dep", "scipy-dep", "diffusers-dep", "qwen-vl-utils-dep", "matplotlib-dep", "pyserial-dep", "deepdiff-dep", "pynput-dep", "pyzmq-dep", "feetech", "dynamixel", "damiao", "robstride", "openarms", "gamepad", "hopejr", "lekiwi", "unitree-g1", "reachy2", "kinematics", "intelrealsense", "phone", "diffusion", "wallx", "pi", "smolvla", "multi-task-dit", "groot", "sarm", "xvla", "eo1", "hilserl", "async", "peft", "dev", "notebook", "test", "video-benchmark", "aloha", "pusht", "libero", "metaworld", "all"]
+provides-extras = ["dataset", "training", "hardware", "viz", "core-scripts", "evaluation", "dataset-viz", "av-dep", "pygame-dep", "placo-dep", "transformers-dep", "grpcio-dep", "can-dep", "peft-dep", "scipy-dep", "diffusers-dep", "qwen-vl-utils-dep", "matplotlib-dep", "pyserial-dep", "deepdiff-dep", "pynput-dep", "pyzmq-dep", "motorbridge-dep", "motorbridge-smart-servo-dep", "feetech", "dynamixel", "damiao", "robstride", "openarms", "gamepad", "hopejr", "lekiwi", "unitree-g1", "reachy2", "rebot", "kinematics", "intelrealsense", "phone", "diffusion", "wallx", "pi", "smolvla", "multi-task-dit", "groot", "sarm", "xvla", "eo1", "hilserl", "async", "peft", "dev", "notebook", "test", "video-benchmark", "aloha", "pusht", "libero", "metaworld", "all"]
[[package]]
name = "librt"
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]
+[[package]]
+name = "motorbridge"
+version = "0.3.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/58/f2/b824ac4d611c71020dccdb72fc50606e543c77c68455ea824b26d9a6de03/motorbridge-0.3.2.tar.gz", hash = "sha256:5cf85dd22c46c7f3c5e6981e90b1034af2deb1bc4e7d74c13074d1d4a7b75ceb", size = 30158, upload-time = "2026-05-18T07:13:17.239Z" }
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