diff --git a/README.md b/README.md index 5ba39d1..d4e9491 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,20 @@ Arduino implementation for MH-Z CO2 sensors such as **MH-Z14A**, **MH-Z18B** (as 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: @@ -13,15 +27,6 @@ More info about the sensor: https://revspace.nl/MHZ19 -## Implementation - -``` -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 - - ## Further reading: - http://ihormelnyk.com/Page/mh-z19_co2_meter