diff --git a/platformio.ini b/platformio.ini
index be5aa5544..b5f3ecd4f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -252,6 +252,23 @@ lib_deps =
   makuna/NeoPixelBus @ 2.6.9
   https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
 
+[esp32s3]
+;; generic definitions for all ESP32-S3 boards
+build_flags = -g
+  -DESP32
+  -DARDUINO_ARCH_ESP32
+  -DARDUINO_ARCH_ESP32S3
+  -DCONFIG_IDF_TARGET_ESP32S3
+  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -DCO
+
+lib_deps =
+  ${env.lib_deps}
+  ;; currently we need the latest NeoPixelBus dev version, because it contains important bugfixes for -S3
+  https://github.com/Makuna/NeoPixelBus.git#master @ 2.7.0
+  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+
+
 # ------------------------------------------------------------------------------
 # WLED BUILDS
 # ------------------------------------------------------------------------------
@@ -375,6 +392,20 @@ upload_speed = 460800
 build_unflags = ${common.build_unflags}
 lib_deps = ${esp32c3.lib_deps}
 
+[env:esp32s3dev_8MB]
+;; ESP32-S3-DevKitC-1 development board, with 8MB FLASH, no PSRAM
+board = esp32-s3-devkitc-1
+platform = espressif32@5.1.1
+platform_packages = platformio/framework-arduinoespressif32@3.20004.220825
+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
+lib_deps = ${esp32s3.lib_deps}
+board_build.partitions = tools/WLED_ESP32_8MB.csv
+board_build.f_flash = 80000000L
+board_build.flash_mode = qio
+monitor_filters = esp32_exception_decoder
+
 [env:esp8285_4CH_MagicHome]
 board = esp8285
 platform = ${common.platform_wled_default}