improve support for -S2

got myself an adafruit "qt py -S2" with tinyUF2 bootloader. So I wanted to get that working. And it does work :-).
FFT time = 10ms (instead of 2ms on classic ESP32)  is a very good result, also virtual USB runs much better now.

platformio.ini

@@ -134,6 +134,7 @@ build_flags =
   -D DECODE_SONY=true
   -D DECODE_SAMSUNG=true
   -D DECODE_LG=true
+  -D DECODE_RC5=true
   ; -Dregister= # remove warnings in C++17 due to use of deprecated register keyword by the FastLED library
   -DWLED_USE_MY_CONFIG
   ; -D USERMOD_SENSORSTOMQTT
@@ -616,7 +617,7 @@ lib_deps_min =
 
 build_flags_max = 
   -D WLED_MAX_USERMODS=9 ; default only 4-6
-  -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4 ewowi to softhack: move to build_flags_min?
+  ;; -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4 ewowi to softhack: move to build_flags_min? - We need a different solution
   -D WLED_USE_MY_CONFIG ; include custom my_config.h ewowi to softhack: redundant as also in build_flags_min?
   -D USERMOD_DALLASTEMPERATURE
   -D USE_ALT_DISPLAY ; new versions of USERMOD_FOUR_LINE_DISPLAY and USERMOD_ROTARY_ENCODER_UI
@@ -874,6 +875,67 @@ board_build.flash_mode = qio
 ; RAM:   [==        ]  24.7% (used 80856 bytes from 327680 bytes)
 ; Flash: [=======   ]  66.9% (used 1403489 bytes from 2097152 bytes)
 
+;; MM max for Adafruit QT Py ESP32-S2 -> 4MB flash, PSRAM, and tinyUF2 bootloader
+;; to ewowi - i'll optimize this entry later, as a few things can be inherited for sure
+[env:esp32s2_tinyUF2_PSRAM_max]
+extends = esp32_4MB_V4_min_base
+platform = ${esp32.platformV4}
+platform_packages = ${esp32.platformV4_packages}
+
+board = adafruit_qtpy_esp32s2
+board_build.partitions = tools/partitions-4MB-tinyuf2_spiffs.csv ;; this is needed for tinyUF2 bootloader!
+board_build.f_flash = 80000000L
+board_build.flash_mode = qio
+upload_speed = 256000 ;; 921600
+build_unflags = ${common.build_unflags}
+  -D USERMOD_DALLASTEMPERATURE ;; disabled because it hangs during usermod setup on -S2 (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 = ${common.build_flags} ${esp32.build_flagsV4} ${esp32s2.build_flags} 
+  -D WLED_WATCHDOG_TIMEOUT=0 -D CONFIG_ASYNC_TCP_USE_WDT=0
+  ${common_mm.build_flags_min} ${common_mm.build_flags_max}
+  -Wno-misleading-indentation -Wno-format-truncation
+  -D WLED_RELEASE_NAME=esp32S2_4MB_UF2_max
+  -DARDUINO_USB_CDC_ON_BOOT=1  ;; mandatory, otherwise USB does not work!!
+  -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0
+  -D SERVERNAME='"WLED-S2"'
+  -D WLED_USE_PSRAM
+  -D WLED_DISABLE_INFRARED ;; save flash space
+  -D WLED_DISABLE_ALEXA    ;; save flash space
+  -D LEDPIN=39 ;; onboard neopixel LED. Attach your own LEDs to GPIO 7 or GPIO 6
+  -D BTNPIN=0
+  ;-D RLYPIN=6
+  ;-D IRPIN=7
+  -D HW_PIN_SCL=40
+  -D HW_PIN_SDA=41
+  -D HW_PIN_DATASPI=35
+  -D HW_PIN_CLOCKSPI=36
+  -D HW_PIN_MISOSPI=37
+  -D AUDIOPIN=-1
+  -D SR_DMTYPE=1
+  -D I2S_SDPIN=9
+  -D I2S_WSPIN=8
+  -D I2S_CKPIN=17  
+  -D MCLK_PIN=18
+  ;-D STATUSLED=-1
+  -D WLED_USE_MY_CONFIG
+  ; -D WLED_DEBUG_HOST='"192.168.xxx.xxx"' ;; to send debug messages over network to host 192.168.x.y - FQDN is also possible
+  ; -D WLED_DEBUG_NET_PORT=1768 ;; port for network debugging. default = 7868
+  ; -D WLED_DEBUG
+  ; -D SR_DEBUG
+  ; -D MIC_LOGGER
+lib_deps = ${env.lib_deps} ${esp32s2.lib_deps} ${common_mm.lib_deps_min} ${common_mm.lib_deps_max}
+  paulstoffregen/OneWire@ ^2.3.7 ; used for USERMOD_DALLASTEMPERATURE -> need newer release with bugfixes for -S3; still requires TEMPERATURE_PIN < 46
+  olikraus/U8g2@ ^2.34.5 ; used for USERMOD_FOUR_LINE_DISPLAY -> need newer version with bugfixes for arduino-esp32 v2.0.4 (Wire inititialization) 
+  ElectronicCats/MPU6050 @ 0.6.0 ; used for USERMOD_MPU6050_IMU
+lib_ignore = IRremoteESP8266 ; use with WLED_DISABLE_INFRARED for faster compilation
+monitor_filters = esp32_exception_decoder
+; RAM:   [===       ]  25.6% (used 83796 bytes from 327680 bytes)
+; Flash: [==========]  97.7% (used 1408626 bytes from 1441792 bytes)
+
 # ------------------------------------------------------------------------------
 # custom board configurations
 # ------------------------------------------------------------------------------