diff --git a/frontend/public/firmware/micropython-esp32c3.bin b/frontend/public/firmware/micropython-esp32c3.bin
new file mode 100644
index 0000000..4841696
Binary files /dev/null and b/frontend/public/firmware/micropython-esp32c3.bin differ
diff --git a/frontend/src/simulation/Esp32MicroPythonLoader.ts b/frontend/src/simulation/Esp32MicroPythonLoader.ts
index d36adf0..8d281bb 100644
--- a/frontend/src/simulation/Esp32MicroPythonLoader.ts
+++ b/frontend/src/simulation/Esp32MicroPythonLoader.ts
@@ -26,13 +26,21 @@ const FIRMWARE_MAP: Record<string, FirmwareConfig> = {
     cacheKey: 'micropython-esp32s3-v1.20.0',
     fallback: '/firmware/micropython-esp32s3.bin',
   },
+  'esp32-c3': {
+    remote: 'https://micropython.org/resources/firmware/ESP32_GENERIC_C3-20230426-v1.20.0.bin',
+    cacheKey: 'micropython-esp32c3-v1.20.0',
+    fallback: '/firmware/micropython-esp32c3.bin',
+  },
 };
 
 /** Map any ESP32-family board kind to firmware variant key */
-function toFirmwareVariant(boardKind: BoardKind): 'esp32' | 'esp32-s3' {
+function toFirmwareVariant(boardKind: BoardKind): 'esp32' | 'esp32-s3' | 'esp32-c3' {
   if (boardKind === 'esp32-s3' || boardKind === 'xiao-esp32-s3' || boardKind === 'arduino-nano-esp32') {
     return 'esp32-s3';
   }
+  if (boardKind === 'esp32-c3' || boardKind === 'xiao-esp32-c3' || boardKind === 'aitewinrobot-esp32c3-supermini') {
+    return 'esp32-c3';
+  }
   return 'esp32';
 }
 
diff --git a/frontend/src/types/board.ts b/frontend/src/types/board.ts
index c4b29cc..3ecab1a 100644
--- a/frontend/src/types/board.ts
+++ b/frontend/src/types/board.ts
@@ -12,9 +12,9 @@ export type BoardKind =
   | 'esp32-s3'                    // Xtensa LX7, QEMU backend
   | 'xiao-esp32-s3'               // Seeed XIAO ESP32-S3, QEMU (esp32-s3)
   | 'arduino-nano-esp32'          // Arduino Nano ESP32 (S3), QEMU (esp32-s3)
-  | 'esp32-c3'                    // RISC-V RV32IMC, browser emulation (Esp32C3Simulator)
-  | 'xiao-esp32-c3'               // Seeed XIAO ESP32-C3, browser emulation (Esp32C3Simulator)
-  | 'aitewinrobot-esp32c3-supermini' // ESP32-C3 SuperMini, browser emulation (Esp32C3Simulator)
+  | 'esp32-c3'                    // RISC-V RV32IMC, QEMU backend
+  | 'xiao-esp32-c3'               // Seeed XIAO ESP32-C3, QEMU backend
+  | 'aitewinrobot-esp32c3-supermini' // ESP32-C3 SuperMini, QEMU backend
   | 'attiny85';                   // AVR ATtiny85, browser emulation (avr8js)
 
 export type LanguageMode = 'arduino' | 'micropython';
@@ -31,6 +31,10 @@ export const BOARD_SUPPORTS_MICROPYTHON = new Set<BoardKind>([
   'esp32-s3',
   'xiao-esp32-s3',
   'arduino-nano-esp32',
+  // ESP32-C3 RISC-V (QEMU bridge)
+  'esp32-c3',
+  'xiao-esp32-c3',
+  'aitewinrobot-esp32c3-supermini',
 ]);
 
 export interface BoardInstance {