My first self-built hardware!

Now this is awesome! And this is what I'd been waiting to get my hands on! The Hardware! So this is officially my first self-built thing. officially becasue I have been opening things before but without knowing a tad bit of what I was doing. But yes the machine insides have always been a curious thing for me. This device that I made with a hobbyist-kit was a sound-meter with 5 LDs, with a sensitivity knob as well. And what you see right now in the video is how we (classmates) made all our gadgets work together. Besides mine, there were:

1. metal detector, producing light output.
2. light output, producing ... I can't remember.
3. decision maker; this produced an output if the answer is yes. It's random of course.
4. one produced sounds resembling those of the famous toy guns of the 90s.
5. sound converter; takes in any sound as an input and reproduces it whereby making it more robotic, hightening or lowering the pitch, etc.

So in the video, #4 is producing the sound, #5 is reproducing it, and mine is producing a digital/visual display of the sound.

Enjoy!