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Electricity Labs

This week we used our Arduino kit to build our very first circuit using a breadboard, resistor, and USB power.

I initially put the basic circuit together and couldn’t get it to work. Luckily my friend Dana was sitting down the table and quickly pointed out that I didn’t have the right resistor. I knew that different color resistors had different ratings, but I didn’t realize that you had to look really closely at the little stripes. So, I thought all of my resistors were the same rating at first.

After that, it was pretty smooth sailing. I put the switch in the wrong direction at first, so it didn’t work. But that was easy to flip around and get working.

The potentiometer was fun. I tried running the circuit with the potentiometer without the resistor to see what would happen and had my first LED blowout (ITP right of passage?).

dead-led

All in all, watching these little lights light up was pretty satisfying.