PJRC Teensy in a temperature controller

Home-built Temperature Controller Turns on a Desk Lamp.

The temperature controller has been designed to regulate my smoker temperature by using a switched outlet.

PJRC Teensy LC is the brains in the box, signals to energize/de-energize a solid-state relay (IXYS CPC1215), which then drives a 30A contactor coil.

30A contactor gets power from a 3-prong cord (intended for a 20A circuit) and switches power to the outlet mounted in the box.

For testing the thermistor is placed under a desk lamp and temperature control set point is set higher than room temperature.

This situation allows enough heating and cooling to exceed the 4-degree hysteresis so the controller can automatically cycle.

This video shows the cooling cycle as the temperature is dropping toward the lower limit, and then the controller turns on the light.

The LCD display is from Adafruit, and is being controlled with the Adafruit USB/Serial backpack using serial pins from the Teensy. I could have used the Teensy to perform all the functions performed by the Adafruit backpack and save $12 from project cost, but I took the path of least resistance instead.

Absolutely scintillating experience ;) . Really...
Probably a good candidate for YouTube's most boring video awards.