Three 10k Ohm panel mount potentiometers. The type of part that every parts box needs at least three of. Usable plugged into a breadboard or easy to...
5 light sensitive resistors. Great for creating light chasing/phobic robots, or used as pseudo buttons. They can even be set up to sense distance if...
Looking to sense voltage or current? This is the sensor for you. It can be used to measure both high side voltage and current, this is done over i2c...