The assignment was to come up with a simple application for switches and LED circuits. Searching for ideas to try out, I came across this Mini Spin Art Machine; this machine will make endless colorful circles.
I gathered the materials : a Magnum box which I flipped, push button switch, 12V fan, 4 screws, 9V battery, a clear LED, 500Ohm resistor and some tape.
Here is the box:
and that’s after I attached the fan and added the push button:
BTW you might have noticed that I connected a 9V battery to power a 12V fan… That’s ok. The battery just powered the fan, but it wasn’t turning on it’s maximum capacity this time.
I wired the circuit at first using the breadboard and powered through the Arduino. It didn’t work when I connected it as described in the schematics below:
When realising (with the help of my friend Aaron) that the resistor was also affecting the voltage going into the fan, I wired the circuit in parallel:
now I was ready for soldering it all together, trying my hands in soldering for the very first time (think I got addicted…).
That’s the only pic I took from behind the scenes, and it was before switching to a clear LED:
Success!! it worked.
The only problem was that the piece of paper kept on slipping away form my Mini Spin Art Machine! Danielle suggested to attach a rounded piece of cardboard to the top of the fan.
and here we go: