Arduino based Split-Flap game




We have a great Dutch Holiday tradition called sinterklaas (5th of december, this is what the US Santa is based on). For the older “non-believers” we make surprises. The purpose is to buy a small present but make a really cool “surprise” around it. Here my arduino based Split-flap game I made as surprise.

I made this for my 15-year old niece that was asking for very expensive presents only, so I thought I would make her a bit more priceΒ consciousΒ πŸ™‚

Arduino based Split Flap game




The wooden box and all the components for the Split-flap display were made on my CNC machine. I used 2mm thick plastic to mill out the 36 cards in the display. The wheels holding the cards and the pulleys for the cardwheel and stepper motor were milled from left over thick plastic blocks. I milled a 10 teeth pulley (XL037) for the stepper motor and a 40 teeth pulley for the cardwheel, giving me a ration of 4:1 and with my 1.8 degree per step motor, this gives me plenty of accuracy to make sure I display the right cards. I did build into my arduino code I can easily change the offset for each card to fine calibrate. I had to do this, as not all my cards where equal in size.

 

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