I managed to solve the problem, for anyone trying to do the same here is the solution: I used an I2C scanner and foud the device adres, in case it was :0x77 so I changed this line: iaqSensor.begin(0x77, Wire); Regards, AY
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it is fixed i figured out that with new IDE and IDF that the correct platfform.txt was below dont use the one under appdata C:\Users\Home\Documents\Arduino\hardware\expressif\esp32
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