Installing the Solid State Relay

I conducted a simple test today by hooking up the Solid State Relay (SSR) to the toaster oven and an Arduino's power supply.

The hot wire was already connected to both heating elements so I just connected the neutral side of the heaters to terminal 1 of the SSR using a connector I bought from RadioShack. Terminal 2 is connected to neutral in the power outlet. Terminal 3 and 4 are simply connected to 5V and GND on my Arduino. Having 5V across terminals 3 and 4 turns on the relay, creating a return path for current to pass through the heating elements. You can see that the toaster was successfully turned on.

Now, all I have to do is install the thermocouple and digitally control the temperature using the Arduino.