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Merge pull request #5323 from wled/ethernet_led_pin

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Change default LED pin to 4 in esp32 ethernet builds and set AR default to "no mic" mode.
The "normal" default LED pin 16 is conflicting with pins needed by many ethernet boards, which can cause random crashes.
This commit is contained in:
Frank Möhle
2026-01-28 15:29:47 +01:00
committed by GitHub
parent 9683896a21 81af160be6
commit 4e072962c0
2 changed files with 9 additions and 2 deletions
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4
platformio.ini
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@@ -511,8 +511,10 @@ upload_speed = 921600
custom_usermods = audioreactive custom_usermods = audioreactive
build_unflags = ${common.build_unflags} build_unflags = ${common.build_unflags}
build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_RELEASE_NAME=\"ESP32_Ethernet\" -D RLYPIN=-1 -D WLED_USE_ETHERNET -D BTNPIN=-1 build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_RELEASE_NAME=\"ESP32_Ethernet\" -D RLYPIN=-1 -D WLED_USE_ETHERNET -D BTNPIN=-1
-D SR_DMTYPE=-1 -D AUDIOPIN=-1 -D I2S_SDPIN=-1 -D I2S_WSPIN=-1 -D I2S_CKPIN=-1 -D MCLK_PIN=-1 ;; force AR to not allocate any PINs at startup
-D DATA_PINS=4 ;; default led pin = 16 conflicts with pins used for ethernet
; -D WLED_DISABLE_ESPNOW ;; ESP-NOW requires wifi, may crash with ethernet only => uncomment if your board uses ETH_CLOCK_GPIO0_OUT, ETH_CLOCK_GPIO16_OUT, ETH_CLOCK_GPIO17_OUT
-DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when building with arduino-esp32 >=2.0.3 -DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when building with arduino-esp32 >=2.0.3
; -D WLED_DISABLE_ESPNOW ;; ESP-NOW requires wifi, may crash with ethernet only
lib_deps = ${esp32.lib_deps} lib_deps = ${esp32.lib_deps}
board_build.partitions = ${esp32.default_partitions} board_build.partitions = ${esp32.default_partitions}
board_build.flash_mode = dio board_build.flash_mode = dio

5
wled00/const.h
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@@ -610,9 +610,14 @@ static_assert(WLED_MAX_BUSSES <= 32, "WLED_MAX_BUSSES exceeds hard limit");
#else #else
#define DEFAULT_LED_PIN 2 // GPIO2 (D4) on Wemos D1 mini compatible boards, safe to use on any board #define DEFAULT_LED_PIN 2 // GPIO2 (D4) on Wemos D1 mini compatible boards, safe to use on any board
#endif #endif
#else
#if defined(WLED_USE_ETHERNET)
#define DEFAULT_LED_PIN 4 // GPIO4 seems to be a "safe bet" for all known ethernet boards (issue #5155)
//#warning "Compiling with Ethernet support. The default LED pin has been changed to pin 4."
#else #else
#define DEFAULT_LED_PIN 16 // aligns with GPIO2 (D4) on Wemos D1 mini32 compatible boards (if it is unusable it will be reassigned in WS2812FX::finalizeInit()) #define DEFAULT_LED_PIN 16 // aligns with GPIO2 (D4) on Wemos D1 mini32 compatible boards (if it is unusable it will be reassigned in WS2812FX::finalizeInit())
#endif #endif
#endif
#define DEFAULT_LED_TYPE TYPE_WS2812_RGB #define DEFAULT_LED_TYPE TYPE_WS2812_RGB
#define DEFAULT_LED_COUNT 30 #define DEFAULT_LED_COUNT 30