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mh_z19
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README.md

flipper-zero-mh-z19

Application for measuring carbon dioxide (CO2) with mh-z19 sensor and Flipper zero

Ok ppm Bad ppm Very bad ppm Setup

Instalation Guide

  • Clone application source code

    git clone https://github.com/meshchaninov/flipper-zero-mh-z19.git

  • Clone flipper zero source code

    git clone --recursive https://github.com/flipperdevices/flipperzero-firmware.git

  • Move mh_z19 folder to flipperzero-firmware/application_user folder

    mv flipper-zero-mh-z19/mh_z19 flipperzero-firmware/application_user

  • Connect flipper zero via USB to your computer

  • Build and flash to device firmware

    cd flipperzero-firmware
./fbt
./fbt flash_usb

How to use

  • Connect MH-Z19 sensor to your flipper zero:

    sensor <-> flipper zero
5V <-> 5V (1 pin)
GND <-> GND (8 pin)
PWM <-> A6 (3 pin)

    setup

  • Open in flipper zero: Applications -> GPIO -> [MH-Z19] CO2 sensor