Smoke Detector Alarm Using Arduino and MQ135 Gas Sensor
Step by step guide to build your own smoke detector system using Arduino and MQ135 gas sensor, explore two ways to build a fire alarm for your safety.
Interface Dot Matrix Display with Arduino: Code & Connections
A dot matrix display is a matrix of LEDs, you might have seen on Railway Platforms shops, etc. understand how to interface a Dot Matrix Display with arduino.