From 5eab1e7cece2fd2dd87a47e198ba475c3de64177 Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Tue, 3 Feb 2026 16:25:13 +0100
Subject: [PATCH] adding esp32_4MB_V4_S buildenv without HUB75 driver

this build might work better for users with I2S microphone, because the HUB75 driver can interfere with the I2S driver.
---
 platformio.ini | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/platformio.ini b/platformio.ini
index d32b7917..af3b5857 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -78,6 +78,7 @@ default_envs =
   esp32_pico_4MB_V4_S      ;; PICO D4 board
   esp32_4MB_V4_S_HUB75     ;; esp32 4MB  - HUB75 supported
   esp32_4MB_V4_HUB75_forum ;; esp32 4MB  - HUB75 supported (forum pinout)
+  esp32_4MB_V4_S           ;; without HUB75 driver - might work better with I2S microphones
   esp32_4MB_M_eth          ;; esp32 4MB with ethernet support
   esp32_4MB_V4_S_eth       ;; esp32 4MB "V4" build with ethernet support
   ; esp32_4MB_PSRAM_REV3_S ;; WROVER-E experimental, optimized for WROVER-E with "revision3" chip
@@ -1852,8 +1853,35 @@ lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compila
 ; RAM:   [===       ]  25.5% (used 83396 bytes from 327680 bytes)
 ; Flash: [==========]  98.2% (used 1543949 bytes from 1572864 bytes)
 
-[env:esp32_4MB_V4_S] ;; legacy alias
-extends = env:esp32_4MB_V4_S_HUB75
+[env:esp32_4MB_V4_S] ;; without HUB75 driver - might work better with I2S microphones
+extends = esp32_4MB_V4_S_base
+;; board_build.partitions = ${esp32.default_partitions} ;; compatible with upstream
+build_unflags = ${esp32_4MB_V4_S_base.build_unflags}
+  ${common_mm.DMXin_build_flags} ;; exceeds flash size limits
+build_flags = ${esp32_4MB_V4_S_base.esp32_build_flags}
+  -D WLED_RELEASE_NAME=esp32_4MB_V4_S
+  -D WLED_WATCHDOG_TIMEOUT=0 #-D WLED_DISABLE_BROWNOUT_DET
+  -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4; avoids errors on startup
+  -D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
+  -D WLEDMM_SAVE_FLASH
+  -D WLED_DISABLE_LOXONE
+  -D WLED_DISABLE_ALEXA
+  -D WLED_DISABLE_HUESYNC
+  -D WLED_DISABLE_MQTT
+  -D WLED_DISABLE_INFRARED
+  -D WLED_DISABLE_ESPNOW  ;; might help in case of WiFi connectivity problems
+  -D WLED_ENABLE_PIXELFORGE
+  -D WLEDMM_SAVE_FLASH
+  ; -D WLED_DEBUG
+  ; -D SR_DEBUG
+  ; -D MIC_LOGGER
+  ;; -D SR_DMTYPE=254 ;; HUB75 driver needs the I2S unit - this sets AR default mode to 'Network Receive Only' to prevent driver conflicts.
+  ;; -D WLED_DISABLE_PARTICLESYSTEM1D
+  ;; -D WLED_DISABLE_PARTICLESYSTEM2D
+lib_deps = ${esp32_4MB_V4_S_base.esp32_lib_deps}
+lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
+    ${common_mm.DMXin_lib_ignore}
+    ${common_mm.HUB75_lib_ignore}
 
 ; standard MM build for classic esp32; HUB75 not included
 [env:esp32_4MB_V4_M]