Day 2: Breadboad, Ohm's Law, Resistors, Multimeter Instruction, and Inventory Check

Today we started off with multimeters. We checked continuity, voltages and resistances on many things. We searched for continuity on our circuit boards just to understand the concept. Then we moved on to using the multimeters to check the voltage levels being produced by a 1.5V and a 9V battery. We also tested the voltages of two different adapters and a power outlet.

We tested the resistances of a few resistors and a potentiometer too. (A potentiometer can have its resistance changed simply by turning its knob.)










Next we moved onto using breadboards; basically they serve as reusable circuit boards so you can test different types of circuits. We had to make different circuits testing LEDs and how resistors effected their brightness.

After that, we had to read about Ohm's Law and how to use it properly. Our next goal was to decide what resistor would allow our LED to be it's brightest without damaging it. My calculations told me that a 140 Ohm resistor would be best, but I had to improvise with a 180 Ohm resistor.

After all of that, we were given our robotic kits and began our inventory checks.