There are a lot of tutorials on the internet for hacking a toaster to make a soldering oven.I am posting my version. This project will help because it has links to the parts that I used for a cheap, but really beginner friendly approach. All of my parts except the relay and toaster oven can be purchased from Adafruit. I will be providing a step by step tutorial in the project logs in the next few months. Building this project from scratch will only cost about $101.54 (without tax and shipping).
Sorry for the delay on instructions for this project. I have been too busy to finish. I hope to have it complete by the end of May.
Hack your toaster! While this will be different for everyone, the common denominator is that your are looking to remove the toaster casing that will get you to the main power line. I was lucky as my toaster was so old that its wiring was really simple.
Wire toaster to Relay.
As you can see from the picture in step one...this is pretty simple. There were two white leads from the toaster connected to the main power line. I simply completed the same circuit with the inclusion of the relay. If you are already familiar controlling relays from an Arduino, now is probably a good time to test if this circuit will work:
1. Plug in the your toaster to mains power. It should not turn on as you have not activated the relay.
2. Connect the input end of your relay
a. Black (-) to Ground on Your Arduino
b. Red (+) to 5V on Your Arduino
3. Apply 5V to your Arduino and the toaster should turn on. If you do not see the red light on your relay, then something did not work.
You now should be able to turn the toaster on and off by simply powering your Arduino.
Wire the amplifier
1. Connect a wire from the 5V pin on your Arduino to the positive rail on your breadboard.
2. Connect a wire from the Gnd pin on your Arduino to the negative rail on your breadboard.
3. Wire the Amplifier
a. Solder the pins to the amplifier (Here is a good soldering tutorial if you are new)