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Simple CO2 meter using Arduino UNO-Mega board and popular CO2 sensors (SenseAir S8, Sensirion SCD30, Winsen MH-Z14 or 19 and Cubic CM1106). Operation modes: Normal, Calibration 400ppm, Alarm adjust and Altitud compensation adjust
💥 Arduino library for Winsen MH-Z19 – infrared carbon dioxide sensor. The library allows using the sensor over hardware or software UART on any board that supports Arduino.