Control Large DC Gearmotors with PWM & Arduino

Controling DC Gearmotors with PWM

Pulse Width Modulation, or PWM, is an excellent method of controlling DC motors, however controlling large gearmotors can be expensive and difficult – but it doesn’t have to be.

Today I will introduce you to an inexpensive yet powerful H-Bridge motor driver, the Cytron MD10C.

In addition, we will see how altering the PWM frequency can improve performance tremendously.

Experiments with the RCWL-0516 – Doppler Radar Distance Sensor

RCWL-0516 Microwave Proximity Sensor

The RCWL-0156 is an inexpensive yet useful proximity sensor that can be used on its own or with a microcontroller like an Arduino Uno.

The device is unique in that it uses microwaves and Doppler Radar to detect moving objects

In this article I will show you how the device works on its own and how we can add an Arduino (or two) to create some useful projects