Hey guys,
I have some MH-Z14 CO2 sensors connected up to a Particle Photon microcontroller. Its a relatively simple circuit consisting of a 12vdc wall wort as power input, a 5v voltage regulator (RECOM R-78E5.0-1.0), a couple sensors, and a 12VDC fan.
I have a bunch of these devices running in different environments (offices, greenhouses). Occasionally the CO2 sensor enters a state where its output begins to oscillate up and down. Sometime the oscillation frequency is quick (8 minutes peak...
Troubleshooting MH-Z14 CO2 Sensor Output Connected To Microcontroller - Sometimes readings go crazy
I have some MH-Z14 CO2 sensors connected up to a Particle Photon microcontroller. Its a relatively simple circuit consisting of a 12vdc wall wort as power input, a 5v voltage regulator (RECOM R-78E5.0-1.0), a couple sensors, and a 12VDC fan.
I have a bunch of these devices running in different environments (offices, greenhouses). Occasionally the CO2 sensor enters a state where its output begins to oscillate up and down. Sometime the oscillation frequency is quick (8 minutes peak...
Troubleshooting MH-Z14 CO2 Sensor Output Connected To Microcontroller - Sometimes readings go crazy