It's time to build the robot arm for the Really Useful Robot. This is part 4 of of the Really Useful Robot Project. Thanks to ROBOTIS for providing the Dynamixel servos for this project. I'd planned ...

Variable Voltage: These servos can draw motor power directly from a lithium chemistry battery pack (3-cell for Dynamixel AX-12A, 2-cell for the other two) without external voltage regulators.

The Raspberry Pi Zero Dynamixel Hat is an easy-to-use board that allows you to connect and communicate with Dynamixel Servo Motors by using the Savage Electronics AX interface circuit.

Today, we shall talk about how [Adam Bäckström] took a DS3225 servo and rebuilt it to improve its accuracy, then built a high-precision robot arm with those modified servos to show just how much ...

Then, finally, the muscles are replicated using 10 Dynamixel servo motors. Phew. Well, we did say it was complex. And it works amazingly well.

Melody is powered by upgraded P-Series servo motors from Dynamixel, which deliver smoother, more fluid, and humanlike movements, providing a more natural range of motion.