AirMonitor (CO2, VOC)

Last crawled date: 5 years, 3 months ago

Introduction
This is a CO2/TVOC air quality monitor designed for keeping track of air quality indoors.
It is build on top of a TTGO T4 V1.3 board and uses a MH-Z19B and CCS811 sensor.
Features
It features the following:
Real time graphs
Bluetooth support (app available)
TVOC measurement
CO2 measurement
Battery power
Resources
The source code is available here:
Bluetooth app: https://github.com/wilyarti/AirMonitor
ESP32 firmware: https://github.com/wilyarti/dustMonitor
App
The app is still being developed. You can install the APK from this link (Android only): https://github.com/wilyarti/AirMonitor/blob/master/AirMonitor.apk
Build
Flash the following firmware to the device: https://github.com/wilyarti/dustMonitor/blob/master/firmware.bin
The pin out is as follows:
MH-Z19B:
TX Pin 33
RX Pin 35
VCC to 5v
CCS811:
SDA Pin 19
SCL Pin 26
VCC to 3.3v