diff --git a/platformio.ini b/platformio.ini
index 0e303f8d..5ada7d47 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -415,8 +415,8 @@ build_flags = -g
 
 lib_deps =
   https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
-  makuna/NeoPixelBus @ 2.7.5
-  ;; makuna/NeoPixelBus @ 2.7.9 ;; experimental
+  ;; makuna/NeoPixelBus @ 2.7.5 ;; standard
+  makuna/NeoPixelBus @ 2.7.9 ;; experimental - reduces LED glitches on -S2
   ${env.lib_deps}
 
 [esp32c3]
@@ -2487,6 +2487,7 @@ board_build.f_flash = 80000000L
 board_build.flash_mode = qio
 
 build_unflags = ${env:esp32S3_8MB_M.build_unflags}   ;; use the same as "normal" S3 buildenv
+  -D ARDUINO_USB_CDC_ON_BOOT=1                       ;; fix warning: "ARDUINO_USB_CDC_ON_BOOT" redefined; comment out for Serial debug
 build_flags = ${common.build_flags} ${esp32s3.build_flags} -Wno-misleading-indentation -Wno-format-truncation
   ${common_mm.build_flags_S}
   -D WLED_RELEASE_NAME=matrixportal_esp32s3
diff --git a/wled00/const.h b/wled00/const.h
index 8f690ac9..7857a1d3 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -253,7 +253,7 @@
 #define TYPE_NET_ARTNET_RGB      82            //network ArtNet RGB bus (master broadcast bus, unused)
 #define TYPE_NET_DDP_RGBW        88            //network DDP RGBW bus (master broadcast bus)
 
-#define IS_DIGITAL(t) ((t) & 0x10) //digital are 16-31 and 48-63
+#define IS_DIGITAL(t) (((t) & 0x10) || ((t)==TYPE_HUB75MATRIX)) //digital are 16-31 and 48-63 // WLEDMM added HUB75
 #define IS_PWM(t)     ((t) > 40 && (t) < 46)
 #define NUM_PWM_PINS(t) ((t) - 40) //for analog PWM 41-45 only
 #define IS_2PIN(t)      ((t) > 47)
diff --git a/wled00/xml.cpp b/wled00/xml.cpp
index 0c6a1566..72fdf219 100644
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@@ -269,9 +269,9 @@ void appendGPIOinfo() {
 
   // add info about max. # of pins
   oappend(SET_F("d.max_gpio="));
-  #if defined(ESP32)
+  #if defined(ESP32) && !defined(CONFIG_IDF_TARGET_ESP32S3)
     oappendi(NUM_DIGITAL_PINS - 1);
-  #else //8266
+  #else //8266 (max=17), or esp32-S3 (max=48)
     oappendi(NUM_DIGITAL_PINS); //WLEDMM include pin 17 for Analog
   #endif
   oappend(SET_F(";"));