Exercise six “Very Simple Switching”. Looking back to exercise four we covered how to turn electricity into a functional property and lit an LED. This exercise follows up that concept and is the beginning stages of controlling electrical power via switches.
Putting together the discrete components is quite simple but can feel a little tedious without using a bread board. I could imagine that someone who has not done this before may find themselves frustrated; wires popping of the switch connections. Patience grasshopper …. patience. Also, the beginner will more than likely get their first crack at using wire strippers. My advice. Invest in a high quality pair of wire strippers.
Overall, another interesting and high quality exercise. The author continues to do an excellent job providing just the right amount of technical information relative to each exercise.
AA Batteries (4)
Four Battery Carrier
SPDT Toggle Switches
220 Ohm Resistor
*Note regarding Exercise 5 “Let’s Make a Battery”*. The exercise requires the reader to attempt the creation of a battery using lemons or lemon juice. Been there, done that, failed each time. I have never been able to get an LED to light via a lemon. However, the background information found in that section is of high quality and definitely deserves a read through, especially if you are beginner e.g., the nature of electricity, positive and negative charges, etc.