This term, we’ve been working through an electronics kit from Jaycar.com.au.
It’s a brilliant starters kit as it comes with all of the components you need.
(You can actually buy the book by itself if you choose.
None of the other books in this series comes in a kit format, which is a real shame).
The projects start out very simply, creating a circuit to light an LED bulb
and proceed to much more complex projects,
teaching you about the components and how your circuits work as you progress.
This project was Brayden’s “Heads or Tails” machine.
When he used his ‘probe wire’ to complete a specific circuit, it lit up both LED bulbs.
What you can’t see, because it’s happening so quickly, is that the lights are flashing alternatively.
When you break that circuit and allow a different circuit to flow, one of the two lights will remain on.
It seems ‘random’ because you have no idea which light was ‘on’ at the time that you broke the circuit,
thus creating a random-like machine for occasions when you need a ‘heads-or-tails’ answer.
Clever, huh? We thought so.
Our only complaint with this kit is that the springs that replace the need for soldering,
are actually quite difficult (and painful) to use.
So, wiring up these circuits takes a bit of time and is quite fiddly.
I suppose the good thing about it is that it makes the user very keen to move onto the next kit that does require soldering.