Solar Mini Assignment

Assignment: Measure the power required to run a microcontroller. Take any project you already have, and using your multimeter, measure the current needed to power the project. As you already know the voltage, you can determine the power (V*I). If your microcontroller does different things, like turn on and off an LED, or connect to a wifi network and send a message, make sure to measure the current required for each stage. Record your results on your blog.

Response: For this mini assignment I am measuring the current on a prototype for a massager that attaches to your phone. It uses two vibration motors connected to an Arduino and is meant to be powered by the users phone. This project uses the vin pin of the nano in order to get 5V to the motors.

When powered the current fluctuated between 0.075-0.078 amps, gonna round that to 0.08 amps for simplicity’s sake. This means that for this project: Power = 5V x 0.08A = 0.4 Watts