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smartphone
planning to support both iOS and Android devices eventually
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pocketwatch case
might be an actual pocketwatch case, might be 3D printed plastic, might be cardboard, etc.
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rechargeable battery
small LiPo battery
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microcontroller
AVR? MSP430? CC2541?
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Bluetooth radio
maybe CC2541 or similar
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Switec X25 instrumentation stepper motor
turns the needle on the watch
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printed LATE/ON TIME/EARLY watch face
I'll probably just print this on photo paper
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OLED or LCD screen
for displaying event info and hardware status
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button/tilt switch
for user input
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lines of code
just a guess
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