The purpose of this research is the design of the water clarity monitoring system in the aquarium can detect the level of clarity/turbidity of water at a certain level, using Arduino Uno ...

We present a unified library for MQ sensors, this library allows to read MQ signals easily from Arduino, Genuino, ESP8266, ESP-32 boards whose references are MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, ...