This Arduino sketch reads the gas concentration of CO2 and LPG (Liquified Petroleum Gas) values from two sensors, the MQ-135 and MQ-2, and then communicates the values to ROS using the following ...

This Arduino sketch reads the gas concentration of CO2 and LPG (Liquified Petroleum Gas) values from two sensors, the MQ-135 and MQ-2, and then communicates the values to ROS using the following ...

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 ...

LPG, Alcohol, Smoke: MQ2 We have already used MQ2 for smoke sensing and MQ-135 for Air quality monitoring project. Here I will be using the MQ-137 sensor from sainsmart to measure ammonia in ppm. With ...