Lauren Von Dehsen- A3

So my home-made switch was a stapler. I tried a bunch of different things but these two use counting to control the led. The first counts how many staples have been used. The second uses two switches, one adds counts and one subtracts counts, but when both are pushed, the current count is revealed through blinks.

Arduino Sketch: code to count staples

Arduino Sketch: code for two switches

I found this switch and though it was really interesting. I think the creator’s intent was to make users aware of the cost of electricity. I just can’t figure out if you have to pay for turning the lights out too.

energy-saving-coin-bank

link to coin switch

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