atomic14 / atomic14/diy-esp32-epub-reader

EPD47 not booting with microSD connected

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#86 4 comments 0 reactions 0 assignees View on GitHub
Dominant language
C
Stars
870
Forks
111
PR merge metrics
No merged PRs in 30d

Description

Hello,

I have successfully used the official [LILYGO TF-Card adapter](https://de.aliexpress.com/item/1005002317501092.html) on my [EPD47](https://de.aliexpress.com/item/1005002006058892.html) to get access to the Files on my microSD card. But if I power on the device while the adapter is inserted the device doesn't boot (even if the card is not in the adapter). I only got it to work if I connect the adapter after the device is booted, at the next auto reboot the books are loaded. To narrow down the problem I flashed the [LilyGo demo](https://github.com/Xinyuan-LilyGO/LilyGo-EPD47/tree/master/examples/demo) via Arduino IDE. After flashing the demo the device starts fine with the adapter and card inserted, the card is recognized and the size of the card is displayed.

Any help fixing the problem is greatly appreciated.

Thanks in advance.

Contributor guide

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Research direction

Reproduce the boot failure on the EPD47 with the TF-Card adapter inserted, then compare the project's firmware with the LilyGo demo in examples/demo using the Arduino IDE. No project source file or test is named; done means the reader boots reliably with the adapter connected while retaining microSD access.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
embedded-iot
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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