We were able to follow [Stretch2 Robot Arm PCB Issue: Gripper and Wrist Motors Not Detected - #2 by seung] for debugging, and believe we have the same issue.
Similar to the post, when bypassing the arm’s PCB and connecting the gripper directly to USB via U2D2, Dynamixel Wizard is able to detect the motors and also send torque commands.
It also seems like a part of our PCB is damaged, perhaps due to overheating (please see attached image).
Based on this, we believe the PCB in the robot’s arm may be malfunctioning. If the diagnosis seems correct, would it be possible to send us a replacement PCB?
Thank you!
