what is that???
maybe few more words can help to understand your question… anyway, straight from ATMEGA datasheet, page 4 (pin description):
AREF is the analog reference pin for the A/D Converter.
i am new to electronics, so whats a
i am new to electronics,
Are you new to computers or can’t you use Google?
An A/D convertor is an Analog to Digital convertor. It takes in an analog, variable voltage and outputs a digital, numeric result. A digital voltmeter is a kind of A/D convertor.