and the code reacts based on that input. It seems the biggest reason these N64 controllers hit the trash can is because the analog joystick wears out. If you’ve got mad skills you can replace it ...

The ATtiny85’s Analog Comparator function is perfectly suited for such a tester. One input of the comparator is biased such that there is a 51 ohm resistor between the input and ground.

Just like a DMM with an analog bar graph, it gives the same indication for positive and negative inputs. 3 ... I recently got the 8-pin Atmel ATtiny85 chip to work as well as the higher performing ...