Intro One of the most useful things you can do with an Arduino is control higher voltage (120-240V) devices like pumps, fans, lights, heaters etc. Since the Arduino operates at 5V it can’t control ...

Here we have provided PCB layout, circuit diagram, and Gerber files so that you can build or directly order this Relay Driver Module. Previously we have built 4-channel Relay Driver Module, but this ...

Presented here is a simple timer kit built around an Arduino Uno board. It can be used to measure the time delay duration of devices like timer relays, circuit breakers, and other sequential logic ...

The circuit that operates a simple relay and at the same time checks its correct operation. If there is a fault in the relay, a red indicator light (LED) should light up. The falut might be broken ...