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This circuit uses a pull-up resistor. The potentiometer is acting as the pull-up resistor to calibrate the photoresistor. The two are connected, and the connection between them is plugged in to A0.
Great idea! I love seeing projects that use an odd combination of what looks like salvaged parts to make something that not only functions, but also looks cool. I would love to see a few pictures of this creation in action, especially in the dark.
Build an aquatic ecosphere
That's awesome! Great work! I'm working on a few other, more complex electronic projects at the moment, but I might take a break from those and modify my old air cannon or make a new one. I forgot how much fun it is to smash stuff with pneumatic weaponry!
Yeah, it would work much better. But I didn't have one on hand so I simply improvised and made it seem like I knew exactly what I was doing. I wrote this instructable quite a while ago, before I learned how to actually build things and actually write about them.
As long as everything is glued together with PVC cement, and a ball valve is used, no additional seal is needed.
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I would just like to thank you for your intelligent comment in a sea of irrational and factually incorrect comments. People claiming to have knowledge about a subject that they truly know nothing about annoys me. So thank you.
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How to hide your files inside a picture
does it matter which way I wind the primary/secondary coils? will the effect change if I have one coil wound clockwise from the ground up and one coil wound counterclockwise? thanks.
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