diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index 5c5735c..411655e 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -1,7 +1,6 @@
 {
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
     "recommendations": [
+        "Jason2866.esp-decoder",
         "pioarduino.pioarduino-ide",
         "platformio.platformio-ide"
     ],
diff --git a/README.md b/README.md
index 642f08d..c4aa16c 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,7 @@ You can use these links to buy a developer board. If you want to support this pr
   - [LilyGo](https://lilygo.cc/) [T3-S3](https://s.click.aliexpress.com/e/_c3o28ou9)* LoRa 2.4 GHz
   - [Waveshare](https://www.waveshare.com/) [ESP32-S3 GEEK](https://s.click.aliexpress.com/e/_c35mBhkF)*
   - [Waveshare](https://www.waveshare.com/) [ESP32-S3 AMOLED 2.06](https://s.click.aliexpress.com/e/_c34ka7n1)* Watch with 16 MB flash, AMOLED touch display, Wi-Fi 5, BT 5 LE, accelerometer, gyroscope
+  - [Elecrow](https://www.elecrow.com/) [CrowPanel 2.1 inch HMI](https://s.click.aliexpress.com/e/_c4LjYad5)* Rotary Display 480*480 IPS Round Touch Knob Screen
 
 - ESP32 C6 single core with WiFi 6 and BT-5 LE
   - [NanoESP32-C6](https://s.click.aliexpress.com/e/_ooBtUih)* with 16MB flash
diff --git a/boards/esp32_s3_crowpanel_2_1.json b/boards/esp32_s3_crowpanel_2_1.json
new file mode 100644
index 0000000..958c585
--- /dev/null
+++ b/boards/esp32_s3_crowpanel_2_1.json
@@ -0,0 +1,47 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "esp32s3_out.ld",
+      "memory_type": "qio_opi"
+    },
+    "core": "esp32",
+    "f_cpu": "240000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "qio",
+    "mcu": "esp32s3",
+    "variant": "esp32s3",
+    "extra_flags": [
+      "-D ARDUINO_ESP32S3_DEV",
+      "-D ARDUINO_USB_MODE=1",
+      "-D ARDUINO_USB_CDC_ON_BOOT=1",
+      "-D BOARD_HAS_PSRAM=1",
+      "-D ARDUINO_RUNNING_CORE=1",
+      "-D ARDUINO_EVENT_RUNNING_CORE=1"
+    ]
+  },
+  "connectivity": [
+    "wifi",
+    "bluetooth",
+    "usb"
+  ],
+  "debug": {
+    "default_tool": "esp-builtin",
+    "onboard_tools": [
+      "esp-builtin"
+    ]
+  },
+  "frameworks": [
+    "arduino",
+    "espidf"
+  ],
+  "name": "Elecrow CrowPanel 2.1 inch ESP32-S3-N8 (16M Flash 8M PSRAM)",
+  "upload": {
+    "flash_size": "16MB",
+    "maximum_ram_size": 524288,
+    "maximum_size": 16777216,
+    "require_upload_port": true,
+    "speed": 921600
+  },
+  "url": "https://www.elecrow.com/crowpanel-2-1inch-hmi-esp32-rotary-display-480-480-ips-round-touch-knob-screen.html",
+  "vendor": "Elecrow"
+}
\ No newline at end of file
diff --git a/platformio.ini b/platformio.ini
index ab57a2b..f938fe1 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -262,6 +262,13 @@ build_flags =
   -D USE_SX1280
   ; -D HIDE_SPLASH_SCREEN
 
+; ESP32-S3 board config with 16MB flash
+[env:esp32_s3_crowpanel_2_1]
+extends = esp32s3
+board = esp32-s3-devkitc-1
+board_build.variant = ${PIOENV}
+board_build.variants_dir = variants
+board_build.partitions = partitions/partitions_16mb_ota_phy.csv
 
 ; ************
 ; * ESP32-P4 *
diff --git a/src/idf_component.yml b/src/idf_component.yml
deleted file mode 100644
index d752765..0000000
--- a/src/idf_component.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-dependencies:
-  idf: '>=5.1'
diff --git a/variants/esp32_s3_crowpanel_2_1/pins_arduino.h b/variants/esp32_s3_crowpanel_2_1/pins_arduino.h
new file mode 100644
index 0000000..3bc3d25
--- /dev/null
+++ b/variants/esp32_s3_crowpanel_2_1/pins_arduino.h
@@ -0,0 +1,35 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define ESP32_S3_CROWPANEL_2_1
+
+static const uint8_t SDA = 38;
+static const uint8_t SCL = 39;
+
+static const uint8_t SCK = 2;
+static const uint8_t SS = 16;
+static const uint8_t MOSI = 0; // not used, but defined for compatibility with libraries that use SPI.h
+static const uint8_t MISO = 0; // not used, but defined for compatibility with libraries that use SPI.h
+
+static const uint8_t ENCODER_A_PIN = 42;
+static const uint8_t ENCODER_B_PIN = 4;
+
+static const uint8_t BREATH_LED_PIN = 43;
+
+static const uint8_t RX = 50;
+static const uint8_t TX = 49;
+
+static const uint8_t BACKLIGHT_LED_PIN = 6;
+
+// PCF8574 Extended IO
+static const uint8_t I2C_IO_EXPANDER_ADDRESS = 0x21; // pcf8574
+static const uint8_t I2C_TOUCH_ADDR = 0x15;  // often but not always 0x15!
+static const uint8_t TOUCHSCREEN_RESET_PIN = 0;
+static const uint8_t TOUCHSCREEN_INTERRUPT_PIN = 2;
+static const uint8_t LCD_POWER_PIN = 3;
+static const uint8_t LCD_RESET_PIN = 4;
+static const uint8_t ENCODER_BUTTON_PIN = 5;
+
+#endif /* Pins_Arduino_h */