As we learn more about programming the Arduino, we become more and more excited about connecting and controlling simple circuits. In order to do this, we need to begin to understand how to design and analyze the circuits we are building. In this lesson we introduce you to Ohm’s Law and some techniques that will allow you to design and analyze simple series circuits. If you want to follow along at home, you can order the Arduino Kit we are using HERE. The nice digital voltmeter used in the lesson is available HERE.