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How to use Coolpi 4b RTC

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AugustRobot_Zou last edited by

看手册说4B板内集成一颗RTC时钟芯片，但是没找到任何相关使用资料。请教一下，怎么使用板内RTC
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大法师 @AugustRobot_Zou last edited by

@AugustRobot_Zou

coolpi 4b 板载rtc时钟芯片，默认软件系统已配置支持，用户如需保存时钟信息，需要外接一个纽扣电池。在主板背面有预留可以焊接的位置。
jack@cool-pi.com
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tonyone0902 @大法师 last edited by

@大法师有詳情嗎？焊接的位置之類
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george @tonyone0902 last edited by
@tonyone0902
- RTC spare battery specification MS621FE-FL11E_2017-08-18.PDF
- Welding position
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