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Did you ever wanted your room decoration to be a smoothly fading light strip in a jar? Inspired by the Pimoroni firefly light I built my own variation with an ATtiny and two AA batteries instead of using a Raspberry Pi Zero and a huge battery pack. There are three LED strings that fade in a sine pattern. Two of them fade anti parallel at one of 16 adjustable speeds. The third fades differently at a second configurable...