Thermo-Electric Control Box Demonstration - Arduino Controlled PWM

This video demonstrates a control box that I made in order to control a Themo-Electric Cooling device. The LED is controlled via PWM on the Arduino. I am able to control this by adjusting a Potentiometer that is sending an analog signal to the Arduino. The Arduino takes that signal and sends a proportional PWM current to the LED to control the brightness. The box was custom designed by me and includes a 3.5mm hole for power and signal wires to control the Peltier device.