nterestingly as soon as I take a reading in my loop:
lcd.setCursor(0,0);lcd.print("CO2 : "); lcd.print(czr.CO2());
My ads1115 running on the i2c bus stops taking readings!
If I rem this line out, it works fine??
The CO2 reading works fine anyway.
The I2C communication might be corrupted by the LCD communication. How is the LCD connected?
do you have pull ups on the I2C lines?