Hi everyone..
I have the experience of working with adc of Atmega series uC. but now I have a stranger problem.
I'm going to read the output voltage of CNY70 (optical sensor).
I've set the reference voltage of adc to AVCC pin.
but regardless of what is the voltage, I have 1023 value in result of converting.. whats the matter ??
I have the experience of working with adc of Atmega series uC. but now I have a stranger problem.
I'm going to read the output voltage of CNY70 (optical sensor).
I've set the reference voltage of adc to AVCC pin.
but regardless of what is the voltage, I have 1023 value in result of converting.. whats the matter ??