add xiao board

Author: jrowny

platformio.ini

@@ -25,6 +25,8 @@ build_flags =
 	-D ELEGANTOTA_USE_ASYNC_WEBSERVER=1
 	-D FIRMWARE_VERSION_RAW=${sysenv.FIRMWARE_VERSION}
 	-D CHIP_FAMILY_RAW=${sysenv.CHIP_FAMILY}
+	; -D FILAMENT_RUNOUT_PIN=12
+	; -D MOVEMENT_SENSOR_PIN=13
 
 [env:esp32-dev]
 board = esp32dev
@@ -72,4 +74,29 @@ build_flags =
     ${common.build_flags}
 lib_deps = 
 		${common.lib_deps}
-extra_scripts = merge_bin.py
+extra_scripts = merge_bin.py
+
+[env:seeed_xiao_esp32s3-dev]
+board = seeed_xiao_esp32s3
+platform = ${common.platform}
+framework = ${common.framework}
+board_build.filesystem = littlefs
+build_flags =
+    ${common.build_flags}
+		-D FILAMENT_RUNOUT_PIN=5
+		-D MOVEMENT_SENSOR_PIN=6
+lib_deps = 
+		${common.lib_deps}
+
+[env:seeed_xiao_esp32s-build]
+board = seeed_xiao_esp32s3
+platform = ${common.platform}
+framework = ${common.framework}
+board_build.filesystem = littlefs
+build_flags =
+    ${common.build_flags}
+		-D FILAMENT_RUNOUT_PIN=5
+		-D MOVEMENT_SENSOR_PIN=6
+lib_deps = 
+		${common.lib_deps}
+extra_scripts = merge_bin.py

src/ElegooCC.h

@@ -9,9 +9,14 @@
 
 #define CARBON_CENTAURI_PORT 3030
 
-// Pin definitions
+// Pin definitions - can be overridden via build flags
+#ifndef FILAMENT_RUNOUT_PIN
 #define FILAMENT_RUNOUT_PIN 12
+#endif
+
+#ifndef MOVEMENT_SENSOR_PIN
 #define MOVEMENT_SENSOR_PIN 13
+#endif
 
 // Status codes
 typedef enum