Pinbox 30005/7/2023 The microcontroller board is the mastermind of the game. The built in switch on the battery holder makes it easy to turn the game off when you're done. A 9 volt battery would work too but would have less capacity and likely more wasted battery power in the conversion to 5 volts. The battery pack supplies about 7.5 volts to the microcontroller board which steps that down to 5 volts for itself and for the LED display board. The start button is screwed to the side and has a switch inside that closes when the button is pushed. A ball guide is hot glued behind the flippers to guide the ball over another micro switch arm as it drains. The micro switches have long arms that make it easier for the ball to close the switch as it falls through the hole. ![]() Three scoring micro switches are hot glued under the target holes so that each hole can award a different number of points.
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