Arduino Tachometer

Arduino Tachometer

Basically, a Tachometer is a device used to count on the number of rotations that the particular object is taking in the due time. Initially, the processing was all manual through mechanical coupling to count the rotations. Then, the RPM (revolutions per minute) is...
Arduino Relay Code, Connection and Control

Arduino Relay Code, Connection and Control

Relay is an electronic switch like the one we have in our house to on-off the lights or fans. Arduino Relay is an electronically controlled mechanical switch that means it can be controlled by applying a secondary supply. In this article, we are going to structure...