diff --git a/platformio.ini b/platformio.ini
index b5f3ecd4..9cb08f13 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -12,7 +12,7 @@
 ; default_envs = travis_esp8266, travis_esp32
 
 # Release binaries
-default_envs = nodemcuv2, esp8266_2m, esp01_1m_full, esp32dev, esp32_eth, esp32s2_saola, esp32c3
+default_envs = nodemcuv2, esp8266_2m, esp01_1m_full, esp32dev, esp32_eth, esp32s2_saola, esp32c3dev, esp32s3dev_8MB
 
 # Build everything
 ; default_envs = esp32dev, esp8285_4CH_MagicHome, codm-controller-0.6-rev2, codm-controller-0.6, esp32s2_saola, d1_mini_5CH_Shojo_PCB, d1_mini, sp501e, travis_esp8266, travis_esp32, nodemcuv2, esp32_eth, anavi_miracle_controller, esp07, esp01_1m_full, m5atom, h803wf, d1_mini_ota, heltec_wifi_kit_8, esp8285_H801, d1_mini_debug, wemos_shield_esp32, elekstube_ips
@@ -32,6 +32,8 @@ default_envs = nodemcuv2, esp8266_2m, esp01_1m_full, esp32dev, esp32_eth, esp32s
 ; default_envs = esp8285_4CH_MagicHome
 ; default_envs = esp8285_H801
 ; default_envs = d1_mini_5CH_Shojo_PCB
+; default_envs = esp32mdev_PSRAM
+; default_envs = esp32s3-mdev
 ; default_envs = wemos_shield_esp32
 ; default_envs = m5atom
 ; default_envs = esp32_eth
@@ -226,6 +228,16 @@ lib_deps =
   makuna/NeoPixelBus @ 2.6.9
   https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
 
+build_flagsV4 = -g
+  -DARDUINO_ARCH_ESP32
+  -DCONFIG_LITTLEFS_FOR_IDF_3_2
+  -D CONFIG_ASYNC_TCP_USE_WDT=0
+lib_depsV4 =
+  ${env.lib_deps}
+  ;makuna/NeoPixelBus @ 2.6.9
+  https://github.com/Makuna/NeoPixelBus.git#master @ 2.7.0  ;; NPB 2.6.9 tends to crash whith IDF V4.4.3 -> use latest NeoPixelBus dev version instead
+  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+
 [esp32s2]
 build_flags = -g
   -DARDUINO_ARCH_ESP32
@@ -382,11 +394,13 @@ upload_speed = 460800
 build_unflags = ${common.build_unflags}
 lib_deps = ${esp32s2.lib_deps}
 
-[env:esp32c3]
+[env:esp32c3dev]
 board = esp32-c3-devkitm-1
 platform = https://github.com/tasmota/platform-espressif32/releases/download/v2.0.2.2/platform-tasmota-espressif32-2.0.2.zip
 platform_packages =
 framework = arduino
+build_flags =  ${common.build_flags} ${esp32c3.build_flags} 
+  -D CONFIG_LITTLEFS_FOR_IDF_3_2 -D WLED_WATCHDOG_TIMEOUT=0
 board_build.partitions = tools/WLED_ESP32_4MB_1MB_FS.csv
 upload_speed = 460800
 build_unflags = ${common.build_unflags}
@@ -397,6 +411,7 @@ lib_deps = ${esp32c3.lib_deps}
 board = esp32-s3-devkitc-1
 platform = espressif32@5.1.1
 platform_packages = platformio/framework-arduinoespressif32@3.20004.220825
+framework = arduino
 upload_speed = 921600
 build_unflags = ${common.build_unflags}
 build_flags =  ${common.build_flags} ${esp32s3.build_flags} -D CONFIG_LITTLEFS_FOR_IDF_3_2 -D WLED_WATCHDOG_TIMEOUT=0 -D ARDUINO_USB_MODE=1 -D ARDUINO_USB_CDC_ON_BOOT=0 -D ARDUINO_USB_MSC_ON_BOOT=0
@@ -491,6 +506,89 @@ build_flags = ${common.build_flags} ${esp32s2.build_flags} #-D WLED_RELEASE_NAME
 ;  -D STATUSLED=15
 lib_deps = ${esp32s2.lib_deps}
 
+
+# ------------------------------------------------------------------------------
+# MoonModules configs for IDF V4.4.x
+# ------------------------------------------------------------------------------
+
+;; experiemtal environment for boards with PSRAM. 
+;; Warning: the build-in LittleFS seems to be "slightly different" from Lorol LittleFS. 
+;; When upgrading to the new framework, it might be necessary to first do a chip erase (make sure you have a backup of cfg.json and presets.json)
+;; also SpiffsEditor (Async Webserver) has known problems in IDF4.4.x
+[env:esp32mdev_PSRAM]
+board = lolin_d32_pro
+;board = esp32cam
+; platform = ${esp32.platform}
+; platform_packages = ${esp32.platform_packages}
+platform = espressif32@5.1.1
+platform_packages = platformio/framework-arduinoespressif32@3.20004.220825
+framework = arduino
+
+upload_speed = 460800 ; or 921600
+build_unflags = ${common.build_unflags}
+;build_flags =  ${common.build_flags} ${esp32.build_flags} 
+build_flags =  ${common.build_flags} ${esp32.build_flagsV4} 
+  -D WLED_RELEASE_NAME=ESP32 -D WLED_WATCHDOG_TIMEOUT=0 #-D WLED_DISABLE_BLYNK #-D WLED_DISABLE_BROWNOUT_DET
+  -D WLED_USE_PSRAM 
+  -D ABL_MILLIAMPS_DEFAULT=1500 ; 850 not enough for 1024 leds
+  -D UWLED_USE_MY_CONFIG
+  -D USERMOD_CUSTOMEFFECTS
+  -D USERMOD_AUDIOREACTIVE
+  -D UM_AUDIOREACTIVE_USE_NEW_FFT
+  ; -D WLED_DEBUG
+  ; -D SR_DEBUG
+
+;lib_deps = ${esp32.lib_deps}
+lib_deps = ${esp32.lib_depsV4}
+  https://github.com/kosme/arduinoFFT#develop @ 1.9.2
+
+monitor_filters = esp32_exception_decoder
+board_build.partitions = ${esp32.default_partitions}
+board_build.f_flash = 80000000L
+board_build.flash_mode = dio
+
+[env:esp32S3mdev]
+board = esp32-c3-devkitm-1
+platform = espressif32@5.1.1
+platform_packages = platformio/framework-arduinoespressif32@3.20004.220825
+framework = arduino
+
+upload_speed = 460800 ; or 921600
+build_unflags = ${common.build_unflags}
+build_flags =  ${common.build_flags} ${esp32s3.build_flags} -D WLED_RELEASE_NAME=ESP32S3 #-D WLED_DISABLE_BLYNK #-D WLED_DISABLE_BROWNOUT_DET
+  -D ARDUINO_USB_MODE=1 -D ARDUINO_USB_CDC_ON_BOOT=0 -D ARDUINO_USB_MSC_ON_BOOT=0
+  -D WLED_WATCHDOG_TIMEOUT=0 
+  -D ABL_MILLIAMPS_DEFAULT=1500 ; 850 not enough for 1024 leds
+  -D LEDPIN=4
+  -D STATUSLED=39
+  -D BTNPIN=-1
+  -D RLYPIN=-1
+  -D IRPIN=-1
+  -D HW_PIN_SDA=40
+  -D HW_PIN_SCL=41
+  -D UWLED_USE_MY_CONFIG
+  -D USERMOD_CUSTOMEFFECTS
+  ;; for audioreactive usermod
+  -D USERMOD_AUDIOREACTIVE
+  -D UM_AUDIOREACTIVE_USE_NEW_FFT
+  -D AUDIOPIN=-1
+  -D I2S_SDPIN=16
+  -D I2S_CKPIN=17  
+  -D I2S_WSPIN=47
+  -D ES7243_SDAPIN=8
+  -D ES7243_SCLPIN=18
+
+lib_deps = ${esp32s3.lib_deps}
+  ;; for audioreactive usermod  
+  https://github.com/kosme/arduinoFFT#develop @ 1.9.2
+
+board_build.partitions = tools/WLED_ESP32_8MB.csv
+; board_build.flash_mode = dio
+board_build.flash_mode = qio
+board_build.f_flash = 80000000L
+; board_build.f_flash = 120000000L
+monitor_filters = esp32_exception_decoder
+
 # ------------------------------------------------------------------------------
 # custom board configurations
 # ------------------------------------------------------------------------------