Arduino from Scratch Digital Thermometer

I have loved making projects with Arduinos, but at $30 a piece your projects can get expensive. So I want to show you how you can make your own Arduino from scratch and save money doing it. Make your own Arduino for around $8. For this instructable I show you how to make one on a breadboard and with it make a digital thermometer. Step 1: Parts you need for the Arduino: Full Size Breadboard ($8 ...

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