This is the accompanying repository for all source code and additional material for the article series "MQ Sensor Series usage with Arduino R4 Wi-Fi", published on medium.com ...

LPG is an alternative fuel used for daily use. Due to its low cost and ease of installation. This article covers an Arduino-based gas detection system that uses an Arduino UNO R3 board and gas sensors ...

Connections are pretty simple and only a few wires. Connect the VCC and GND of the sensor to the 5V and GND pins of the Arduino. Then connect the output to the Arduino’s D2 pin. Here's how the ...