TTGO & SCD30 based CO2 sensor

hardware

SCD30 connected to TTGO board using I2c bus (SDA & SCL pins wired) - see the resources folder for devices information.

software

Arduino IDE config:

board manager url set to https://dl.espressif.com/dl/package_esp32_index.json
board type set to "ESP32 Dev Module" with:
- Upload Speed set to 460800
- CPU Freq 240 MHz
- Flash Freq 80MHz
- Flash Size 16Mb (128Mb)
- Partition Scheme 16 Mb Flash (3 Mb App / 9 Mb FATFS) - MANDATORY
- PSRAM option set to disabled