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5V-12V AT89C2051 Multifunction Six Digital LED DIY Electronic Clock Kit
5V-12V AT89C2051 Multifunction Six Digital LED DIY Electronic Clock Kit
US$7.99 US$6.99

Q: how to set backup battery and battery voltage

Asked by malabi8025 on 2018-06-29 06:31:51

Whinyard Normal button battery is ok, I use 3V

2018-07-07 01:17:38 Helpful (1)
Answers (2)

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