MH-Z19b CO2 sensor
Information
The MH-Z19 is an indoor CO2 sensor. It is just a sensor, which means that you need to have separate system to read and control the data measured by the MH-Z19. This can for example be a wemos or nodemcu device that you need to have in place to control the MH-Z19 sensor. When you have this setup in place, you are able to send data from this sensor to your home automation or smart home platform.
Features
- High sensitivity, high resolution.
- Output modes: UART and PWM wave.
- Anti-water vapor interference.No poisoning.
- Temperature compensation, excellent linear output.
- Low power consumption,good stability and long lifespan.
- It is widely used in the HVAC refrigeration and indoor air quality monitoring.
Setup
In order to use the MH-Z19b CO2 sensor use the following settings:
Mandatory
- Hardware
- MH-Z19b CO2 sensor
Types : co2, temperature
- Address
- Serial address and connect to GPIO pin 8 (TX) and 10 (RX). Ex:
/dev/ttyS0
Other settings can be found at the sensor setup information
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