Puck.js RTC

Posted on
  • Is there any way to build an RTC into a Puck? I understand how to set the clock from the Web IDE, but I'm concerned about losing the clock anytime the battery dies or is removed.


  • Hi,

    There is an RTC in the Puck (and all of the Bluetooth Espruinos), but yeah, when the battery dies, the time is lost... But it would be in any RTC.

    A simple option would be to add another battery to it via a diode - so when the first battery gets low or gets removed, the other one will take over and everything will be fine. Even just adding a big capacitor would allow you to swap the battery over quickly without a reset.

    Otherwise you could add an external RTC like the DS3231 that there's a module for already - however that will require its own external voltage source as well.

  • Post a reply
    • Bold
    • Italics
    • Link
    • Image
    • List
    • Quote
    • code
    • Preview

Puck.js RTC

Posted by Avatar for user94898 @user94898