diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e57ea71..c5cdfe6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,17 +5,17 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: 'true'
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/pip
             ~/.platformio/.cache
           key: ${{ runner.os }}-pio          
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.9'
       - name: Install PlatformIO
@@ -23,7 +23,7 @@ jobs:
       - name: Build firmware
         run: platformio run
       - name: Archive
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: firmwares.zip
           path: .pio/build/*/firmware.bin
diff --git a/include/camera_config.h b/include/camera_config.h
index 3181b41..341cbb4 100644
--- a/include/camera_config.h
+++ b/include/camera_config.h
@@ -111,8 +111,7 @@ constexpr camera_config_t ttgo_t_camera_settings = {
     .grab_mode = CAMERA_GRAB_LATEST};
 
 constexpr camera_config_t m5stack_camera_settings = {
-    .pin_pwdn = -1,
-    .pin_reset = -1,
+ .pin_reset = -1,
     .pin_xclk = 10,
     .pin_sscb_sda = 40,
     .pin_sscb_scl = 39,
@@ -134,7 +133,7 @@ constexpr camera_config_t m5stack_camera_settings = {
     .frame_size = FRAMESIZE_SVGA,
     .jpeg_quality = 12,
     .fb_count = 1,
-    .fb_location = CAMERA_FB_IN_PSRAM,
+    .fb_location = CAMERA_FB_IN_DRAM,
     .grab_mode = CAMERA_GRAB_LATEST};
 
 constexpr camera_config_t wrover_kit_camera_settings = {
@@ -189,4 +188,31 @@ constexpr camera_config_t xiao_esp32s3_camera_settings = {
     .jpeg_quality = 12,
     .fb_count = 2,
     .fb_location = CAMERA_FB_IN_PSRAM,
+    .grab_mode = CAMERA_GRAB_LATEST};
+
+constexpr camera_config_t m5stack_unitcams3_camera_settings = {
+    .pin_pwdn = -1,
+    .pin_reset = 15,
+    .pin_xclk = 27,
+    .pin_sscb_sda = 25,
+    .pin_sscb_scl = 23,
+    .pin_d7 = 19,
+    .pin_d6 = 36,
+    .pin_d5 = 18,
+    .pin_d4 = 39,
+    .pin_d3 = 5,
+    .pin_d2 = 34,
+    .pin_d1 = 35,
+    .pin_d0 = 32,
+    .pin_vsync = 22,
+    .pin_href = 26,
+    .pin_pclk = 21,
+    .xclk_freq_hz = 20000000,
+    .ledc_timer = LEDC_TIMER_0,
+    .ledc_channel = LEDC_CHANNEL_0,
+    .pixel_format = PIXFORMAT_JPEG,
+    .frame_size = FRAMESIZE_SVGA,
+    .jpeg_quality = 12,
+    .fb_count = 1,
+    .fb_location = CAMERA_FB_IN_PSRAM,
     .grab_mode = CAMERA_GRAB_LATEST};
\ No newline at end of file
diff --git a/include/settings.h b/include/settings.h
index f87f508..cb3ec9b 100644
--- a/include/settings.h
+++ b/include/settings.h
@@ -32,6 +32,9 @@ constexpr camera_config_t default_camera_config = wrover_kit_camera_settings;
 #elif defined(BOARD_SEEED_XIAO_ESP32S3_SENSE)
 constexpr const char *board_name = "Seed Xiao ESP32S3 Sense";
 constexpr camera_config_t default_camera_config = xiao_esp32s3_camera_settings;
+#elif defined(BOARD_M5STACK_UNITCAMS3)
+constexpr const char *board_name = "M5Stack UnitCamS3";
+constexpr camera_config_t default_camera_config = m5stack_unitcams3_camera_settings;
 #else
 #error No board defined
 #endif
diff --git a/platformio.ini b/platformio.ini
index cf8e965..e0b9fe7 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -16,7 +16,8 @@
 #default_envs = ttgo-t-beam
 #default_envs = m5stack_esp32cam
 #default_envs = esp32_wrover_cam
-default_envs = seeed_xiao_esp32s3
+#default_envs = seeed_xiao_esp32s3
+#default_envs = m5stack_unitcams3
 
 [env]
 platform = espressif32
@@ -85,4 +86,11 @@ build_flags =
 [env:seeed_xiao_esp32s3]
 board = seeed_xiao_esp32s3
 build_flags = 
-  -D BOARD_SEEED_XIAO_ESP32S3_SENSE
\ No newline at end of file
+  -D BOARD_SEEED_XIAO_ESP32S3_SENSE
+  -D BOARD_HAS_PSRAM
+
+[env:m5stack_unitcams3]
+board = esp32s3box
+build_flags = 
+  -D BOARD_M5STACK_UNITCAMS3
+  -D BOARD_HAS_PSRAM
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index f82cdec..90fcd06 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -300,8 +300,10 @@ void setup()
   // Disable brownout
   WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
   // LED_BUILTIN (GPIO33) has inverted logic false => LED on
+#ifdef LED_BUILTIN
   pinMode(LED_BUILTIN, OUTPUT);
   digitalWrite(LED_BUILTIN, false);
+#endif
 
   Serial.begin(115200);
   Serial.setDebugOutput(true);
@@ -348,7 +350,9 @@ void setup()
   iotWebConf.getApTimeoutParameter()->visible = true;
   iotWebConf.setConfigSavedCallback(on_config_saved);
   iotWebConf.setWifiConnectionCallback(on_connected);
+  #ifdef LED_BUILTIN
   iotWebConf.setStatusPin(LED_BUILTIN, LOW);
+  #endif
   iotWebConf.init();
 
   camera_init_result = initialize_camera();