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longboard-speedometer
A simple arduino based longboard speedometer.
Part list:
- Arduino pro mini
- 4 digit 7 segment 0.56 inch display (I used HS420561K-C30, but other 0.56" 12 pin displays should work just fine)
- TP4056 based li-ion charging circuit
- Li-Po battery
- Reed switch (Although I recommend getting a hall sensor instead)
- 2 state switch 14 x 9 mm
- Magnet
- Something to program the arduino with