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This page lists possible blink codes of the red LED located on the ESP32-CAM board, their meaning and possible solutions.
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The effective error codes can be found [here](https://github.com/jomjol/AI-on-the-edge-device/blob/rolling/code/components/jomjol_helper/statusled.h).
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TODO!!!
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# Error
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Those errors make the normal operation of the device impossible.
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Most likely they are caused by a hardware issue!
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## `0x00000001` PSRAM bad
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Your device most likely has no PSRAM at all or it is too small (needs to have at least 4 MBytes)!
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See [Hardware Compatibility](../Hardware-Compatibility).
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Usually the log shows something like this:
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```
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psram: PSRAM ID read error: 0xffffffff
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cpu_start: Failed to init external RAM!
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```
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# Status
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Those Errors can be caused by an error during initialization. It is possible that the error has no impact at all or that a reboot solves it.
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## `0x00000100` Cam Framebuffer bad
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The firmware was unable to initialize the Camera Framebuffer.
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The firmware will continue to work, but other consequential error might arise.
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A reboot of the device might help.
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