I have simple problem but don't know how to solve. i try example program as below but find out the ADC read from 300 to 893 but not 0 to 1023. i connect 10K potentiometer and LED in series to AN0. i use MEGA 2560. Any idea? Analog input, analog output, serial output Reads an analog input pin, maps…

ADC problem

system September 21, 2012, 12:58am 2

Lose the pot, and connect the analogue pin directly to either 5V or 0V.
What values do you get?

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