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A little about SD CARD and RTC

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e2002 edited this page Sep 26, 2023 · 2 revisions

Starting from v0.9.300, playback in SD CARD mode can work without an Internet connection:

  • When loading in SDCARD mode, the player can operate without a network connection, and the network connection happens in the background.
  • In the absence of a connection, if the RTC module is configured correctly, the time is displayed correctly. More details in examples/myoptions.h#L86
  • The RTC module has three parameters - RTC_SDA, RTC_SCL, RTC_MODULE. All three must be specified.
  • To use SDCARD without an internet connection, the presence of an RTC is not mandatory. If the RTC module is not configured or is absent, the time starts from 00:00 and synchronizes upon resuming the internet connection.
  • When the connection is lost in WEBRADIO mode, the PLAY button and the MODE button restart the ESP in SDCARD mode.
  • When booting in AP mode, the PLAY button and the MODE button restart the ESP in SDCARD mode.
  • The * button on the IR remote switches the ESP to SDCARD mode and back.

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