I am going to use the mega48's ADC and it's 1.1V internal reference but I am not sure of a few things.
For the finished project:
I understand I should connect a capacitor (.01uf ok?) to ground from the AREF
I don't know if AVCC should be connected to VCC
While testing on the stk500 board.
Do I just remove the AREF jumper or should I add a capacitor from the pin that connects to AREF to ground.
I will be measuring the voltage from a solar panel through a 10k - 2.2k to ground voltage divider so that a 3.5V panel voltage will be in the 630mv range. I plan to use 1V or higher reading as the turn system off signal and under 600mv as the on point.
I have used the ADC on tiny13's but the setup on the AREF and AVCC pins is a little unclear.