Motor Controller Selection

The three motor specifications that determine the right motor controller: voltage, running current, and stall current, plus how to estimate stall current and size a RoboClaw around it.

Ground Path Issues

When using a motor controller improper grounding can cause damage to the motor controller and also to devices attached to it.

Understanding Motor Specifications

Motor specifications — voltage, current, speed, torque, and power — describe how a motor behaves and determine the battery and motor controller you need. This guide explains what each specification means and how to use the stall current to size a controller.

PID Control and Motor Controllers

Motor controller like the RoboClaw used feedback from sensors like encoders to maintain the speed and position of motors. Internally, a system called a PID controller is used to maintain these values at their given setpoints. In this App Note we’ll be looking at the what, why and how of a PID controller.