diff --git a/platformio.ini b/platformio.ini
index 42290513..2a15b2fe 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -663,7 +663,7 @@ platform = ${esp32.platformV4}
 platform_packages = ${esp32.platformV4_packages}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flagsV4} ${common_mm.build_flags_min}
-  -Wno-misleading-indentation
+  -Wno-misleading-indentation -Wno-format-truncation
 lib_deps = ${esp32.lib_depsV4} ${common_mm.lib_deps_min}
 board_build.partitions = ${esp32.default_partitions}
 board_build.f_flash = 80000000L ; use full 80MHz speed for flash (default = 40Mhz) 
@@ -831,26 +831,35 @@ build_flags = ${esp32_4MB_V4_max_base.build_flags}
 [env:esp32S3_8MB_max]
 extends = esp32_4MB_V4_max_base
 board = esp32-s3-devkitc-1
+build_unflags = 
+  -D USERMOD_DALLASTEMPERATURE ;; disabled because it hangs during usermod setup on -S3 (autodetect broken?)
+  -D USE_ALT_DISPLAY ;; four line display seems to have problems with I2C - it hangs during usermod setup
+  -D USERMOD_FOUR_LINE_DISPLAY ;; see above
+  -D USERMOD_ROTARY_ENCODER_UI ;; see above
+  -D WLED_ENABLE_DMX ;; disabled because it does not work with ESP-IDF 4.4.x (buggy driver in SparkFunDMX)
+
 build_flags =  ${esp32_4MB_V4_max_base.build_flags} 
   -D WLED_RELEASE_NAME=esp32S3_8MB_max 
   -D ARDUINO_USB_MODE=1 -D ARDUINO_USB_CDC_ON_BOOT=0 -D ARDUINO_USB_MSC_ON_BOOT=0 -D ARDUINO_USB_DFU_ON_BOOT=0
   -D WLED_WATCHDOG_TIMEOUT=0 
+  -D WLED_DISABLE_BLYNK ;; seems that BLYNK does not work on -S3
   -D WLED_DISABLE_LOXONE ; FLASH 1272 bytes
   -D WLED_DISABLE_ALEXA ;  RAM 116 bytes; FLASH 13524 bytes
-  -D WLED_DISABLE_MQTT ;   RAM 216 bytes; FLASH 16496 bytes
-  -D WLED_DISABLE_HUESYNC ;RAM 122 bytes; FLASH 6308 bytes
+  ; -D WLED_DISABLE_MQTT ;   RAM 216 bytes; FLASH 16496 bytes
+  ; -D WLED_DISABLE_HUESYNC ;RAM 122 bytes; FLASH 6308 bytes
   -D LEDPIN=4
   -D STATUSLED=39
-  -D BTNPIN=-1
-  -D RLYPIN=-1
-  -D IRPIN=-1
-  -D HW_PIN_SDA=40
+  -D BTNPIN=48
+  -D RLYPIN=21
+  -D IRPIN=15
+  -D HW_PIN_SDA=42
   -D HW_PIN_SCL=41
   -D AUDIOPIN=-1
   -D SR_DMTYPE=1
   -D I2S_SDPIN=16
   -D I2S_CKPIN=17  
   -D I2S_WSPIN=47
+  -D MCLK_PIN=40
   -D ES7243_SDAPIN=8
   -D ES7243_SCLPIN=18
   ; -D WLED_DEBUG