I should have mentioned that aref needs to be connected to 3v to use the entire 0-1023 range. Otherwise 1023 will mean 5v and -3 to +3G will in the first 3/5 of that range.
D.
I should have mentioned that aref needs to be connected to 3v to use the entire 0-1023 range. Otherwise 1023 will mean 5v and -3 to +3G will in the first 3/5 of that range.
D.