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“An automatic pencil sharpener machine that works using linear motion. You can sharpen any pencil just by pressing a button and it will take care of the rest, including gathering up all the rubbish into a container. Components - Attiny84, for …
“Half of my family tends to fall asleep with the light on. It doesn’t feel right to leave the light on all night, so we ‘improved’ the two lamps to have a timer that turns off after twenty minutes …