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 ...

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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 ...