Learn everything you need to know about adding a motor to your robot, including how to connect it to a Raspberry Pi with ROS!

Arduino firmware repository https://github.com/joshnewans/ros_arduino_bridge
Repository for serial_motor_demo ROS package https://github.com/joshnewans/serial_motor_demo

Here are a few videos explaining/demonstrating aspects of PID control (thanks to Eric Mack for the suggestions!). Hopefully one day I'll get around to making something myself…

Simple visualization – https://www.youtube.com/watch?vg7apd9a7Jxs
Technical explanation – https://www.youtube.com/watch?vfv6dLTEvl74
Physical Demo – https://www.youtube.com/watch?vqKy98Cbcltw

00:00 – Introduction
00:27 – A layered solution
01:25 – Basic power, bikers
02:57 – Motor controllers (open and closed loop)
05:53 – Pi as motor controller (?), communication link
07:21 – Robot controller and software driver
09:30 – Overview of demo circuits
10:38 – Wiring the motor control
12:53 – Create motor controller, open loop test
15:56 – Encoders and closed loop control
10:00 PM – Set up ROS driver
24:25 – Using the control interface, outro

Please take the opportunity to connect and share this video with your friends and family if you find it helpful.