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Retro Bubble LED Watch

Retro LED watch with obsolete HP bubble LED seven segment display from 1970s.

szymon-bartosikSzymon Bartosik
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This project combines the modern and readily available componets like ATMega328PB uC to work with this beautiful gem of LED engineering - HP 5082-7415 that is unfortuently rare and obsolete. The watch uses popular DS1337S+ RTC IC to provide basic watch features such as:
- Time and date read and write
- 2 independent alarms
- Day of the week
- Expected 2,5 years of battery life
- Buzzer
- Rugged contruction
- ISP programming header
It is built from scratch incuding the code that only uses Wire library for I2C communication with RTC.

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