Hello everyone, this repository contains all the resource files for basic Arduino Tutorials on Circuit Digest. If you are interested to know more about Arduino, then You can visit the following links.

> MQ135 is mainly used to detect the concentration of carbon dioxide, alcohol, benzene, NOx, ammonia and other gases in the air.

The pulse sensor comes with a flat ribbon cable with three male header connectors. The Pinout of the Pulse sensor is given below: S(Signal) is the Analog output pin of the Sensor Module that will give ...

What is a rotary encoder? A rotary encoder (RT) is a device that you can rotate infinitely. On most rotary encoders, when you rotate them you will feel a bump (known as steps), and most RTs have about ...

When it comes to detecting certain changes in weather conditions, it's pretty unpredictable, and rainfall is one of the most unexpected parameters of weather. So in this article, we decided to ...