ESP32Dev1_ES_BSEC_v1.04 - Uses BSEC code to drive the BME680, direct access to the IAQ value as well as IAQ accuracy. Data displayed on mono colour oled.
ESP32Dev1_ES_v1.45 - Uses 3rd party code to calculate IAQ, doesn't call the IAQ value directly from the BME680 and no IAQ accuracy. Displayed on mono colour oled.
ESP32SSD13XX_IAQ_BSEC_v1.05 - Uses BSEC code to drive the BME680, direct access to the IAQ value as well as IAQ accuracy. Data displayed on colour oled.