A teacher I know is stuck, with only npn transistors in the supply cupboard and the need to create a reversible motor drive for an Arduino project. Reversing ‘bridges’ have four switches (relay ...
Arduino fans, this project turns TVs on when you want them off. It makes a perfect April Fools' Day joke or gag gift—or, in the spirit of Evil Week, use it anytime of year to drive people crazy. You ...
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