This tutorial by Robojax explains how to use a Winson WCS Current sensor to measure DC current and use a relay as overcurrent protection so the current is disconnected when the current reaches the threshold value set in the code. The Robojax WCS Library is used to measure current. This code will work with all Winson WCS Current sensors.

This video requires the Robojax WCS Library to be installed. The link is below.

This code is offered as 3 sketches:

1. Overcurrent Protection with LCD
2. Overcurrent Protection with LCD and powering up the LCD from a digital pin
3. Overcurrent Protection without LCD

This code is included with the library. You don't have to download it from this page. Just download the library; this code is included.