Pin configurations : Motor A: This terminal block will give the output for the first motor. It is recommended to always use the external voltage supply. The module can be powered from 5 to 35V from Arduino or external power supply. The module has an onboard regulator which helps in giving the output of 5V. It can control motors which operates between 5 to 35V and up to 2A. Specification : The module will allow you to control the speed and direction of two DC motors.