I know it's quite old already, but there are few things you forgot to mention/implement. First, the sensor has its burn-in period, during which the measures are not accurate. For some sensors it may take about 1 week to stabilize the reading. Second, this sensor needs temperature and humidity to compensate the readings. Both the values affect CO2 and TVOC otherwise. I saw you suggested to change I2C address in library, but this can be done by passing the address when initializing library.
Hello. I bought a keyestudio CCS811 sensor, but I'm having tons of trouble with the second code trying to connect it to the OLED, could you give a hand please? :)
Hello, a nice and simple project. Please tell me how you can add 5 more pieces of ws2812 led to this project so that they would change color from green - yellow to red as CO2 ppm increases . That would be really cool. How to do it? Is it very difficult?
