Day 2: Learning the DMM.

Today, we learned how to use a multimeter to test for continuity, voltage, and resistance. We learned about two different kinds of power supplies AC and DC, regulated and unregulated. We then built a couple different circuits to see how different resistance changes the brightness of a LED. Last, we inventoried our vex kits.

AC and DC power supplies(top left), DMM(top right), circuit board used to test continuity on(bottom left).

Picture of the photoresistor I used to test the resistance of.

Circuits used to see how resistance affects the brightness, experimenting with a potentiometer, circuit on top is using 220 ohm resistor which was close to 250 ohms, to try and get around 20 mA going through the LED.