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Update factory reset procedure in README and main.cpp for clarity and functionality

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Adrian A. Baumann
2026-06-24 00:10:38 +02:00
parent c57c0c93fd
commit 9fb424fd68
2 changed files with 27 additions and 17 deletions
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README.md
+7 -4
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@@ -79,12 +79,15 @@ After connecting, the device is reachable at:
### Factory reset (forgot password)
If you lose the web UI password, hold the **BOOT button** (GPIO0) for 3 seconds during startup. The firmware resets all settings to factory defaults **except** meter pin assignments and calibration (maxDuty), which are preserved. On acknowledgement, all connected meters sweep 0→100→0.
If you lose the web UI password, **reset the device 5 times in quick succession** (press the EN button or cycle power 5× within a few seconds — before the boot completes). The firmware resets all settings to factory defaults **except** meter pin assignments and calibration (maxDuty), which are preserved. On acknowledgement, all connected meters sweep 0→100→0.
Serial output confirms the reset:
Serial output shows the progress:
```
[BOOT] BOOT button held, hold 3s for factory reset...
[BOOT] reset count 1/5
[BOOT] reset count 2/5
...
[BOOT] reset count 5/5, triggering factory reset
[BOOT] factory reset triggered!
...
[BOOT] factory reset complete, restarting...
@@ -236,4 +239,4 @@ Config is stored as JSON in LittleFS at `/config.json`.
}
```
The file is written by the web UI and should not need manual editing. To reset to factory defaults (keeping pin/calibration), hold the BOOT button for 3 seconds at startup. To erase everything including flash, use `pio run --target erase`.
The file is written by the web UI and should not need manual editing. To reset to factory defaults (keeping pin/calibration), reset the device 5 times in quick succession. To erase everything including flash, use `pio run --target erase`.