Arduino project to control a stepper motor which moves a platform up and down.
Up, Down, Stop, Zero (home), Motor Speed functions in the Arduino code.
Motor speed is set with a potentiometer and displayed on an Adafruit seven segment backpack.
The red enable latching push button connects/disconnects 24V DC to the stepper driver.
Stir toggle switch connects 12V DC to a small gear motor externally to stir a solution.
