I am trying to figure out if the analog in pins of the ATmega328p (Arduino Uno) are somehow protected?
If an input voltage > 5V comes in, will it destroy the chip or are there measures in place to prevent this from happening?
I am not talking huge voltages here just wondering what happens if a spike somewhere between 5-10 V hits the analog in?
If it is not protected yet, how can I accomplish this?
I need precise ADC readings from 0-5V but anything that would be higher can be "cut off".
Thank you very much!