How to set MHZ19B CO2 sensor sensitivity

ESPHome
1

According to the manufacturer you can change the sensitivity of the sensor with the following code

The manufacturers product manual gives the relevant commands:

  • set 0~2000ppm detection range, send command: FF 01 99 00 00 00 07 D0 8F
  • set 0~10000ppm detection range, send command: FF 01 99 00 00 00 27 10 2F

I have been picking my brain on how I can send such a signal, but cannot figure it out. Is there anyone who can point me in the right direction?

Needles to say: MHZ19 is connected to an esp32 running esphome

2

Sample uart.write in the docs here → UART Bus — ESPHome

Add your array values in std::vector sample and you are set.