Tutorial 21: How to use an MQ-136 gas sensor

Demo https://youtu.be/am2SoZDx6nI In this tutorial, we will learn how to use an MQ-136 gas sensor. Components Needed MQ-136 gas sensorJumper CablesArduino UnoBreadboardUSB cableA computer to run the program What is an MQ-136 gas sensor and how does it work? The MQ-136 Gas Sensor is a sensor that is sensitive to smoke, propane, methane, alcohol, hydrogen, … Continue reading Tutorial 21: How to use an MQ-136 gas sensor

Tutorial 20: Remote Control Light using a Relay

In this tutorial we will learn how to control high voltage devices using a relay module. Components needed HW-383 relayJumper cablesArduino Uno boardLight bulbIR Remote ControlIR Receiver what is a relay and how does it work? A relay is a switch which is electrically operated by an electromagnet. This relay has two channels. This means … Continue reading Tutorial 20: Remote Control Light using a Relay