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Stop the flickering vertical stripes on the CYD panel (0.2.49)

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The cheap ILI9341 panel showed a fine vertical line pattern that shimmered
when you moved your eyes or the board. Frame inversion (0xB4 0x07) at the
panel's highest frame rate (0xB1 0x00 0x10) removes it; VCOM stays default.
Firmware 0.2.42 for both boards, version only on the Guition.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Max Gramser
2026-09-15 18:29:01 +02:00
parent dffd6a90c6
commit 3f124d3bbe
8 changed files with 48 additions and 6 deletions
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docs/RELEASING.md
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@@ -176,6 +176,17 @@ icons sit off-center in the browser); run `generate_packages.py` afterward.
The `MDI_GLYPH_*` substitutions are retired: `TILEn_ICON` in manual
profiles must come from the set. No changed preferences or keys.
### Compatibility 0.2.49 / firmware 0.2.42
Firmware and the CYD board profile; the app only raises `FIRMWARE_VERSION`. Storage, protocol,
preferences and keys are unchanged.
- home-like-2432s028.yaml adds `init_sequence` to the mipi_spi display: `0xB4 0x07` (frame inversion)
and `0xB1 0x00 0x10` (119 Hz). ESPHome appends these after its built-in ILI9341 sequence, so the
panel init otherwise stays the ESPHome default. Found on 2026-09-15 by sending panel commands at
runtime on the bench CYD; VCOM (`0xC5`) sweeps changed contrast, not the stripes, so it stays default.
- guition-4848s040.yaml only raises `SCREEN_FIRMWARE_VERSION`.
### Compatibility 0.2.48 / firmware 0.2.41
Storage, protocol, preferences and keys are unchanged.