- ESP32-integrated 2.13”e-ink display with built-in WiFi and Bluetooth (https://wiki.dfrobot.com/e-Ink_Display_Module_for_ESP32_SKU_DFR0676)
- CCS811 Air Quality Sensor - measure the concentration of carbon dioxide and TVOC(TotalVolatileOrganicCompounds) (https://wiki.dfrobot.com/CCS811_Air_Quality_Sensor_SKU_SEN0339)
- Pins: https://dfimg.dfrobot.com/nobody/wiki/2fa1421740d13800802149746e923579
- SDA: 21, SCL: 22, Operating Voltage: 3.3V~5.5V, so we can connect to 3.3 on ESP32
From the sensor documentation (https://github.com/DFRobot/DFRobot_CCS811/blob/master/README.md):
| Carbon dioxide concentration(ppm) | Impact on human-beings |
|---|---|
| more than 5000 | toxic |
| 2500-5000 | unhealthy to human body |
| 1000-2500 | feel sleepy |
| 500-1000 | turbid air |
| less than 500 | no effect |
| TVOC concentration (ppb) | Impact on human-beings |
|---|---|
| less than 50 | no effect |
| 50-750 | uncomfortable, nervous |
| 760-6000 | uncomfortable, nervous, headache |
| more than 6000 | headache, neurological problems |