Allow to define default led effect #4790
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Estimated code review effort🎯 1 (Trivial) | ⏱️ ~2 minutes Possibly related PRs
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wled00/wled.h(1 hunks)
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🧠 Learnings (2)
📓 Common learnings
Learnt from: netmindz
PR: wled/WLED#4728
File: wled00/FX.h:378-378
Timestamp: 2025-06-15T09:59:52.720Z
Learning: In WLED's FX.h, MODE_COUNT represents the highest FX_MODE_ ID + 1, not the total count of FX_MODE_ definitions. This is because some effects may have been removed but their IDs are not reused, creating gaps in the numbering sequence. MODE_COUNT is used for array bounds and range checking.
Learnt from: netmindz
PR: wled/WLED#4728
File: wled00/FX.h:378-378
Timestamp: 2025-06-15T09:59:52.720Z
Learning: In WLED's FX.h, MODE_COUNT represents the highest FX_MODE_ ID + 1, not the total count of FX_MODE_ definitions. This is because some effects may have been removed but their IDs are not reused, creating gaps in the numbering sequence. MODE_COUNT is used for array bounds and range checking.
Learnt from: blazoncek
PR: wled/WLED#4658
File: wled00/const.h:140-141
Timestamp: 2025-04-26T19:19:07.600Z
Learning: In WLED, the WLED_MAX_PANELS macro is intentionally defined as a fixed constant value (18) with no redefinition mechanism, making it "unoverridable" - there's no need for a static assertion to check its maximum value.
wled00/wled.h (8)
Learnt from: blazoncek
PR: #4658
File: wled00/const.h:140-141
Timestamp: 2025-04-26T19:19:07.600Z
Learning: In WLED, the WLED_MAX_PANELS macro is intentionally defined as a fixed constant value (18) with no redefinition mechanism, making it "unoverridable" - there's no need for a static assertion to check its maximum value.
Learnt from: netmindz
PR: #4728
File: wled00/FX.h:378-378
Timestamp: 2025-06-15T09:59:52.720Z
Learning: In WLED's FX.h, MODE_COUNT represents the highest FX_MODE_ ID + 1, not the total count of FX_MODE_ definitions. This is because some effects may have been removed but their IDs are not reused, creating gaps in the numbering sequence. MODE_COUNT is used for array bounds and range checking.
Learnt from: netmindz
PR: #4728
File: wled00/FX.h:378-378
Timestamp: 2025-06-15T09:59:52.720Z
Learning: In WLED's FX.h, MODE_COUNT represents the highest FX_MODE_ ID + 1, not the total count of FX_MODE_ definitions. This is because some effects may have been removed but their IDs are not reused, creating gaps in the numbering sequence. MODE_COUNT is used for array bounds and range checking.
Learnt from: KrX3D
PR: #4585
File: usermods/seven_segment_display_reloaded_v2/seven_segment_display_reloaded_v2.cpp:430-435
Timestamp: 2025-04-28T20:51:29.773Z
Learning: In WLED, bri is a global variable used for brightness control.
Learnt from: KrX3D
PR: #4664
File: wled00/syslog.cpp:50-51
Timestamp: 2025-04-26T12:51:04.993Z
Learning: In the WLED codebase, syslog configuration variables (syslogHost, syslogPort, syslogProtocol, syslogFacility, syslogSeverity) are defined as global variables in wled.h and are accessed directly in the SyslogPrinter implementation, rather than being class members.
Learnt from: DedeHai
PR: #4682
File: wled00/FX.cpp:9016-9039
Timestamp: 2025-05-09T18:48:21.296Z
Learning: WLED does not support matrices large enough (≥1024 px) for 32-bit overflow in dxdx + dydy to be a practical concern in particle system effects.
Learnt from: DedeHai
PR: #4682
File: wled00/FX.cpp:8997-9005
Timestamp: 2025-05-09T18:43:15.355Z
Learning: In the WLED codebase, SEGMENT.custom3 is always constrained to the range 0-31 and will not exceed this range.
Learnt from: DedeHai
PR: #4750
File: usermods/audioreactive/audio_reactive.cpp:311-321
Timestamp: 2025-06-27T06:04:44.652Z
Learning: In WLED's AudioReactive usermod, FFT buffer memory (valFFT, windowFFT) is allocated once during initialization and never deallocated, following typical embedded system design where core functionality buffers persist for the application lifetime. Raw buffer pointers for aligned allocations don't need to be tracked in the current implementation since deallocation is never performed.
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At some point I think we need to swap to allowing builds with config.json included, as there are so many things you can pre-configure and adding a build flag for each possible value is not really maintainable Setting values for things like the pins used by certain hardware so that resetting back to factory defaults still works is one thing, setting your preferred effect on power on does not feel in the same category Can I ask your usecase for why it's essential that a given effect is used after a fresh install or factory reset? The bootup orange is expected behavior and confirms you have the correct color order set |
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For SR testing it is better to have SR effect selected after flashing. This is required for production but I thought it might be useful for normal use |
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FYI it is always possible to pre-build file system and upload it to ESP (OTA or via USB). |
Do you have a step by step set of instructions for this? |
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https://discord.com/channels/473448917040758787/718943978636050542/1230376307854938154 For anyone else: You'll need a Discord account and join WLED server to see those posts. |
Allows you to declare a default LED (selected after first power on) effect via
#define DEFAULT_LED_EFFECT <effect number>Example:
#define DEFAULT_LED_EFFECT 157will use "Gravcentric" effect on first startup.Summary by CodeRabbit