So for the 2nd week, we did an Analog In lab. I started with a regular potentiometer, then switched in a mini-pot. The LED would brighten when I turned the pot knobs to the right and dim when turned to the left. After, I switched in and tried out a pressure sensor. The LED brightened when I pushed down with more force on the sensor.
Initially, I thought of all kinds of apparatuses to use – including my Meatwad stress ball with a pressure sensor attached. But I didn’t like the stiffness of the wires I had to use and the actual effect wasn’t quite what I wanted.
I finally decided on regular clip wires (or whatever they’re called). These wires were more flexible and worked better with my idea.
I also added a piezo siren which is normally really loud. I added a 220 ohm resistor to the connection to bring the sound down considerably making it more clicky.
I used a wooden box that I got from the Pearl Paint Craft store and inserted a bright blue LED to the outside.
I played with the idea of the piezo getting louder when a proper connection was made, but decided against it and implemented a sort of reverse idea.
So – basically, when turned on, my luvometer is constantly emitting these annoying little clicky click sounds and the LED flickers. One person holds the white wire and another holds the yellow. While holding the wire in one hand each person holds the other one’s hand – creating a connection. The piezo becomes silent and the LED brightens – resulting in a peaceful and illuminated connection. Well, at least that’s the idea.
A better video demo is coming soon, but here’s the idea for now (Click on image below & press space bar if you don’t see a controller in the frame. Use right and left arrows to rewind/fast-forward):