M5CoreInk Multi Sensor

This project use the CanAirIO Sensors Library to have a complete air quality device. Thanks to this library you able to have many posibilities of sensors and variables automatically, for example you can connect one CO2 sensor or the combination of it with particulate meter sensors (PM2.5) or environment sensors (T, H, P, Alt, etc). The library able to detect and select each driver and third party library for handling these sensors and give you the complete list of variables with a few lines of code. Please see the demo video.

Also the installation of this firmware in your device is possible only with one click via an easy Web installer without WiFi or compiling anything.

Features

• Multi variable - multi sensor support with auto configuration
• CO2 sensor calibration via wheel button
• Continuous mode or low power consumption mode
• Automatic sensor refresh interval on USB connection
• Partial update (fast refresh without blink) in USB mode
• Support two I2C channel (Hat or external port).
• Auto selection of sample time by sensor type
• Low power consumption in Battery mode (Deep sleep via RTC)
• Able to set beep alarm for PM2.5 or CO2
• Redraw complete screen and first setup via middle button
• Demo mode with button down
  

Source code