A unified Python interface for controlling a variety of industrial and hobbyist robots from different manufacturers.
The armctl
library currently supports the following manufacturers and robot models:
Universal Robots | Vention | Elephant Robotics |
UR3, UR5, UR5e, UR10, UR16 | 7th Axis Plate | myCobot Pro600 |
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Want to see your robot supported?
Open an issue or contribute a pull request!
From PyPI:
pip install armctl
From GitHub:
pip install git+https://github.com/MGross21/armctl.git
from armctl import *
Note:
For improved runtime performance and clarity, you may import specific manufacturers and robot series directly.
with Manufacturer("ROBOT_IP_ADDRESS") as robot:
robot.move_joints([...])
robot.get_joint_positions()
robot.move_cartesian([...])
robot.get_cartesian_position(...)
robot.sleep(...)
robot.get_robot_state()
with RobotSeries("ROBOT_IP_ADDRESS") as robot:
robot.home()
robot.move_joints([...])
robot.get_joint_positions()
robot.move_cartesian([...])
robot.get_cartesian_position()
robot.sleep(...)
robot.get_robot_state()
with (
Robot1("ROBOT1_IP_ADDRESS") as r1,
Robot2("ROBOT2_IP_ADDRESS") as r2,
):
r1.home()
r2.home()
r1.move_joints([...])
r2.move_joints([...])
Tip:
For more precise and synchronous control of two or more robots, it is recommended to manage each robot within its own thread or process.
Replicating the prior example,
import threading
def control_robot(robot, ip):
with robot(ip) as r:
r.home()
r.move_joints([0] * r.DOF)
threads = [
threading.Thread(target=control_robot, args=(Robot1, "ROBOT1_IP")),
threading.Thread(target=control_robot, args=(Robot2, "ROBOT2_IP"))
]
for t in threads:
t.start()
for t in threads:
t.join()
Note:
The API has been designed for maximum compatibility across supported robots. Additional commands, such as gripper controls and other advanced features, are planned for future releases to further expand functionality.
The following methods are available to users of the library to control various supported robots.
Method Name | Description |
---|---|
move_joints(pos) |
Move the robot to specified joint positions. |
get_joint_positions() |
Retrieve the current joint positions of the robot. |
move_cartesian(pose) |
Move the robot to a specified Cartesian pose. |
get_cartesian_position() |
Retrieve the current Cartesian position of the robot. |
stop_motion() |
Stop all robot motion immediately. |
get_robot_state() |
Retrieve the current state of the robot. |
sleep(seconds) |
Pause execution for a specified number of seconds. |
home() (Available only for specific robot series, not for generic manufacturer control) |
Move the robot to its home position. |
Robot Homing Behavior
The "home" position refers to a predefined, manufacturer-specific pose that is safe and repeatable for initialization and calibration.
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All inputs and outputs use these standard units:
Type | Unit |
---|---|
Joint Angle | radians |
Cartesian Position | meters ([x, y, z] ) |
Cartesian Rotation | radians ([rx, ry, rz] ) |
The following methods facilitate explicit connection management and low-level command execution. These are primarily intended for advanced scenarios, such as when not using Python's with/as
context manager or when sending custom commands outside the standard API. Use with caution.
Method Name | Description |
---|---|
connect() |
Establish a connection to the robot controller. |
disconnect() |
Close the connection to the robot controller. |
send_command(cmd) |
Send a low-level command to the robot controller. |
The properties template exposes key robot class attributes as variables, allowing you to query important specifications programmatically. These include:
Property Name | Description |
---|---|
JOINT_RANGES |
List of allowed ranges for each joint (radians). |
DOF |
Number of degrees of freedom (joints). |
MAX_JOINT_VELOCITY |
Maximum joint velocity (radians/second). |
MAX_JOINT_ACCELERATION |
Maximum joint acceleration (radians/second²). |
HOME_POSITION (Available only for specific robot series, not for generic manufacturer control) |
Joint positions of robot home position (radians) |
Below is a high-level diagram illustrating the architecture of the armctl
library. This design emphasizes the careful templatization of connection and control APIs, ensuring a consistent and extensible interface across different manufacturers and robot series.
By default, the library will show the outgoing commands and incoming data. An example can be seen below:
2025-02-12 13:18:11,350 - INFO - Connected to ElephantRobotics(192.168.1.159:5001)(SEND/RECV)
2025-02-12 13:18:11,351 - SEND - Sending command: power_on()
2025-02-12 13:18:11,954 - RECV - Received response: [ok]
2025-02-12 13:18:11,954 - SEND - Sending command: state_on()
2025-02-12 13:18:12,647 - RECV - Received response: [ok]
2025-02-12 13:18:12,647 - SEND - Sending command: get_angles()
2025-02-12 13:18:12,663 - RECV - Received response: get_angles:[0.290562,-95.891321,-74.804509,-162.949219,1.845703,12.041016]
2025-02-12 13:18:12,663 - SEND - Sending command: task_stop()
2025-02-12 13:18:13,466 - RECV - Received response: [ok]
2025-02-12 13:18:13,466 - SEND - Sending command: state_off()
2025-02-12 13:18:14,176 - RECV - Received response: [ok]
2025-02-12 13:18:14,176 - SEND - Sending command: power_off()
2025-02-12 13:18:14,176 - RECV - Received response: [ok]
2025-02-12 13:18:14,176 - INFO - Disconnected from ElephantRobotics
To disable logging in your Python code:
from armctl import Logger
Logger.disable()
Or, set the environment variable before running your script:
export ARMCTL_LOG=0
To re-enable logging in your code:
Logger.enable()
Or, remove the environment variable in your shell:
unset ARMCTL_LOG
- FANUC
- Models: LR Mate 200iD Series
- More manufacturers and robot series will be supported in future releases.
Please feel free to submit a pull request or open an issue for any enhancements or bug fixes. See CONTRIBUTING for more details.
This project is licensed under the MIT License. See the LICENSE file for more details.
This package automatically installs the Universal Robots RTDE Python Client Library when needed.
The RTDE library is provided by Universal Robots and is subject to their licensing terms.