I am Using Bme688 with ESP32 DEVKITV1. I need the data of gas using esp32 but in my case i don't want to use bme688 library i want to read data using its register i got the data for temperature, Pressure, Humidity but unable to find gas data. according to data sheet we need to heat up the sensor at different temperature for different gas but i am unable to find that at which temperature and at which heating time i got which gas and it give us the gas resistance value but how we change it into the ppm/ppb for specific gas
can anyone help me to find all possible gases with bme688.