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Default to RMT driver, make I2S/LCD always available with user-selectable driver per bus for ESP32 variants - #5267

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DedeHai with Copilot wants to merge 39 commits into

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copilot/make-i2s-optional-default-rmt

Commits on Jan 3, 2026
- Initial plan
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  a69e04f
- Update UI and backend to default to RMT, make I2S optional
  
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  2726a91
- Implement parallel/single I2S distinction and add UI driver info
  
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  afdd0e3
- Fix I2S memory check to only apply to parallel I2S
  
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  0e34591
- Fix critical bug: calculate sameType and maxLEDsPerBus before use
  
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  ffd29de
- Revert I2S memory check to include both single and parallel I2S
  
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  6acf3ef
- Optimize driver info display by using existing calculations
  
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  87fe97b
- Fix I2S memory calculation logic for parallel vs single I2S
  
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  54edff8
- Fix UI: Always show Enable I2S checkbox and auto-remove excess buses
  
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  8f6f24a
- Fix I2S checkbox logic and max bus count calculation
  
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  efec2b4
Commits on Jan 4, 2026
- Use maxD-7 formula instead of hard-coded values for single I2S
  
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  07c4305
- Simplify driver info display logic
  
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  5589bfd
- enable "RMT" display on C3, minor cleanup
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  9671063
- fix incorrect bus counting
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  7a8874f
- Fix bus removal to only remove single-pin digital buses
  
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  0408865
- fix RMT bus count
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  4733e4f
- Replace auto-removal with visual warning for invalid bus combinations
  
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  ea9d53c
- Consolidate duplicate loops for bus validation and driver info
  
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  b7170bb
Commits on Jan 5, 2026
- consolidate code, add lock i I2S is used (maybe not the best solution...)
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  27c04c8
Commits on Jan 9, 2026
- Add maxRMT and maxI2S parameters to backend and UI
  
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  9c7cc22
- Part 2: Add driver selection dropdown UI for each digital bus
  
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  7fb0dca
- Part 3: Configuration storage for driver preference per bus
  
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  4fe3e9f
- Part 4: Dynamic bus allocation logic with user-selectable drivers
  
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  28db9cb
- Part 5: Channel tracking and validation with brief warnings
  
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  51a6868
- Remove outdated "mixed" bus logic for flexible driver assignment
  
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  da0e985
- Fix critical channel tracking bugs in user-selectable driver system
  
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  4f59e53
Commits on Jan 10, 2026
- Fix compilation error: remove extra #endif in bus_wrapper.h
  
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  acc32f2
- Fix all three critical issues with driver selection system
  
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  a1487bb
- Use determineBusType() instead of getI() in memUsage() to avoid side effects
  
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  423e1f5
- Co-authored-by: DedeHai <6280424+DedeHai@users.noreply.github.com>
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  0c0a4d0
- Simplify bus allocation by storing iType in BusConfig
  
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  8da802a
- Fix parallel I2S DMA buffer estimation (8x multiplier)
  
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  1988199
Commits on Jan 11, 2026
- Improve UI validation logic for RMT/I2S bus management
  
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  89d073d
- Refactor UI validation: extract helper function and fix duplicate resetChannelTracking
  
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  6c508a7
- Apply I2S validation rules to finalizeInit() matching UI behavior
  
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  16458c4
- Fix new bus driver selection to respect channel availability
  
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  643846c
- Remove "Enable I2S" checkbox, make I2S always available, allow first I2S bus to select any type
  
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  5e7283c
- Fix driver type persistence: get driverType from bus object instead of cleared busConfigs
  
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  09600db
Commits on Jan 12, 2026
- Fix legacy config driver assignment: intelligently fallback to I2S when RMT full
  
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  371aac2

Commits

Commits on Jan 3, 2026

Commits on Jan 4, 2026

Commits on Jan 5, 2026

Commits on Jan 9, 2026

Commits on Jan 10, 2026

Commits on Jan 11, 2026

Commits on Jan 12, 2026