Trossen robotics propose different types of robotic arms. The interest of its arms is the open-source and inexpensive architecture. They work with Dynamixel servomotors and are ROS and Arduino compatible.
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# Working with pincherx150
# Working with widowx250
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The PincherX 150 offers 5 degree of freedom and a full 360 degree of rotation. The PincherX 150 arm uses the DYNAMIXEL X-Series Smart Servo Motors. At the heart of the PincherX 150 is the Robotis DYNAMIXEL U2D2 which enables easy access to DYNAMIXEL Wizard software as well as ROS. The DYNAMIXEL XL430-W250-T servos offer high resolution of 4096 positions and user definable PID parameters. Temperature monitoring, positional feedback, as well as voltage levels, load, and compliance settings are user accessible as well.