Project info

Project released.

This project contains 2 boards with different sensor sets.

Board#1:

• CO2
• TVOC
• NOx
• Temperature
• Humidity
• PMx (dust)
• H2S (hydrogen sulfide)
• CO (carbon monoxide)
• O2 (oxygen)

Board#2

• TVOC
• NOx
• Temperature
• Humidity
• H2S (hydrogen sulfide)
• Light (in percents, not in Lumens)

It controls:

• Exhaust fan
• Cooling fan with speed control (fan_pwm driver)

Additional features:

• Integrates with any smart-house system via MQTT protocol (over WIFI)
• Contains touchpad supports multi-click (single click, double click, tripple click etc)
• Contains RGB led to indicate some internal state you want
• OTA updates - just publish new firmware on your local HTTP server and send URL to it into MQTT topic

3D models

• Board#1 - 3d/box-slepingroom*.stl
• Board#2 - 3d/box-bathroom*.stl

Home assistant files

• Board#1 - hass/board1
• Board#2 - hass/board2

Project status

• Board#1 - Done
• Board#2 - Done

Photos

Board#1:

Board#2:

MQTT Broker data:

Board#1: topic /air/1

Board#2: topic /air/0