Skip to content

Arduino imeplementation for CO2 sensors of the MH-Z series (Intelligent Infrared CO2 Module)

License

Notifications You must be signed in to change notification settings

ahorn42/MH-Z-CO2-Sensors

 
 

Repository files navigation

MH-Z14A, MH-Z19B CO2 ... Module

Arduino implementation for MH-Z CO2 sensors such as MH-Z14A, MH-Z18B (as I didn't find all info in one place).

The sensor is available for ~20 bucks at the usual places.

Implementation

See example.

PPMuart: 602, PPMpwm: 595, Temperature: 23

Implementation details

C ppm = 5000 * (T_high - 2 ms) / (T_high + T_low - 4ms)

The implementation is mostly based on https://forum.arduino.cc/index.php?topic=525459.msg3587557#msg3587557

Resources:

Datasheet: http://www.winsen-sensor.com/d/files/infrared-gas-sensor/mh-z19b-co2-ver1_0.pdf

More info about the sensor: https://revspace.nl/MHZ19

Further reading:

(russuian, but google translate does a good job)

About

Arduino imeplementation for CO2 sensors of the MH-Z series (Intelligent Infrared CO2 Module)

Resources

License

Stars

Watchers

Forks

Packages

No packages published

Languages

  • C++ 100.0%