This project is a reliable electronic device to gauge the distance you need to pull your car into your garage. If you park in a garage, you’re probably familiar with the problem: how far do you pull your car into the garage to make sure there’s room in front for whatever is there and enough space behind so the garage door will close? Some people suspend a tennis ball on a string from the ceiling and stop at the point when the ball meets the windshield. That works fine, but the ball is a pain to set up and adjust, and it often gets in the way if you want to use the garage for something other than parking the ...

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