Step 9: Extrapolation
The take away concepts hopefully were:
- Power a whole bunch of different value LEDs using the same basic principals.
- Figure out what is the positive electrode and what is the negative electrode of an LED by looking at it and testing it.
- Use resistors, or combinations of resistors wired together in series or in parallel to supply the correct amount of power to the LED.
- Make calculations to determine what resistor is needed using the formula, or using web sites that do it for you.
- Wire LEDs in series or in parallel depending on the application.
- Make LEDs light up!
This was the most basic kind of walk through for LEDs possible - and I learned a whole lot along the way. LED arrays and wiring schemes can get significantly more complicated - but for the most part, LEDs are pretty simple to work with, and with relatively little knowledge I was able to light them up - all be it if I sent a little too much juice through them towards the end of the experiment. I don't fear the LED now. They are my friends.