diff --git a/script/stubgen.py b/script/stubgen.py
index fae89ca..c025b77 100644
--- a/script/stubgen.py
+++ b/script/stubgen.py
@@ -141,6 +141,41 @@ JuYrNiLvyl/hMVy7wYRKtzUfcTR5jKdCxeynnpqi6KCMaCYJnSxA7oGwrNH+WgBMU6UTPpcClWw4TlEF
 G1L/Vd+rT+KALVDaWXiNqXWVXCjr0cN3KVtDntKPGMMXlXI5G20hPZfdjGQE4Pps7G9zmLZu1l5bgBGfqJSKX2vOBTUi7+2Il5X+xQ0utftI5sXbQZEQbhAmZ8G+VJh1yzUeYg17f8WHo8Fc7RyVXPaWpaWdoZFn\
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 """,
+"esp32c3":b"""
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+"""
 }
 
 for key, stub in stubs.items():
diff --git a/src/const.ts b/src/const.ts
index 19ea8e7..81f635a 100644
--- a/src/const.ts
+++ b/src/const.ts
@@ -24,6 +24,8 @@ export const ESP32_FLASH_SIZES = {
   "4MB": 0x20,
   "8MB": 0x30,
   "16MB": 0x40,
+  "32MB": 0x19,
+  "64MB": 0x1a,
 };
 
 export const FLASH_MODES = {
@@ -52,6 +54,21 @@ export const DETECTED_FLASH_SIZES = {
   0x1a: "64MB",
 };
 
+export const getFlashSizes = (chipFamily: ChipFamily) => {
+  switch (chipFamily) {
+    case CHIP_FAMILY_ESP32:
+      return ESP32_FLASH_SIZES;
+    case CHIP_FAMILY_ESP32S2:
+      return ESP32_FLASH_SIZES;
+    case CHIP_FAMILY_ESP8266:
+      return FLASH_SIZES;
+    case CHIP_FAMILY_ESP32C3:
+      return ESP32_FLASH_SIZES;
+    default:
+      return FLASH_SIZES;
+  }
+};
+
 export const FLASH_WRITE_SIZE = 0x400;
 export const STUB_FLASH_WRITE_SIZE = 0x4000;
 export const FLASH_SECTOR_SIZE = 0x1000; // Flash sector size, minimum unit of erase.
@@ -76,6 +93,14 @@ export const ESP8266_SPI_MOSI_DLEN_OFFS = -1;
 export const ESP8266_SPI_MISO_DLEN_OFFS = -1;
 export const ESP8266_SPI_W0_OFFS = 0x40;
 
+export const ESP32C3_SPI_REG_BASE = 0x60002000;
+export const ESP32C3_SPI_USR_OFFS = 0x18;
+export const ESP32C3_SPI_USR1_OFFS = 0x1c;
+export const ESP32C3_SPI_USR2_OFFS = 0x20;
+export const ESP32C3_SPI_MOSI_DLEN_OFFS = 0x24;
+export const ESP32C3_SPI_MISO_DLEN_OFFS = 0x28;
+export const ESP32C3_SPI_W0_OFFS = 0x58;
+
 const UART_DATE_REG_ADDR = 0x60000078;
 
 export interface SpiFlashAddresses {
@@ -207,6 +232,16 @@ export const getSpiFlashAddresses = (
         misoDlenOffs: ESP8266_SPI_MISO_DLEN_OFFS,
         w0Offs: ESP8266_SPI_W0_OFFS,
       };
+    case CHIP_FAMILY_ESP32C3:
+      return {
+        regBase: ESP32C3_SPI_REG_BASE,
+        usrOffs: ESP32C3_SPI_USR_OFFS,
+        usr1Offs: ESP32C3_SPI_USR1_OFFS,
+        usr2Offs: ESP32C3_SPI_USR2_OFFS,
+        mosiDlenOffs: ESP32C3_SPI_MOSI_DLEN_OFFS,
+        misoDlenOffs: ESP32C3_SPI_MISO_DLEN_OFFS,
+        w0Offs: ESP32C3_SPI_W0_OFFS,
+      };
     default:
       return {
         regBase: -1,
diff --git a/src/esp_loader.ts b/src/esp_loader.ts
index 1724257..15c89e3 100644
--- a/src/esp_loader.ts
+++ b/src/esp_loader.ts
@@ -38,8 +38,7 @@ import {
   ESP32_BOOTLOADER_FLASH_OFFSET,
   BOOTLOADER_FLASH_OFFSET,
   ESP_IMAGE_MAGIC,
-  FLASH_SIZES,
-  ESP32_FLASH_SIZES,
+  getFlashSizes,
   FLASH_FREQUENCIES,
   FLASH_MODES,
   getSpiFlashAddresses,
@@ -831,9 +830,10 @@ export class ESPLoader extends EventTarget {
     this.logger.log("Image being flashed is a bootloader");
 
     let flashMode = FLASH_MODES["dio"]; // For now we always select dio, a common value supported by many flash chips and ESP boards
-    let flashFreq = FLASH_FREQUENCIES["40m"]; // For now we always select 40m, a common value supported by many flash chips and ESP boards
-    let flashSize =
-      this.getFlashSizes()[this.flashSize ? this.flashSize : "4MB"]; // If size was autodetected we use it otherwise we default to 4MB
+    let flashFreq = FLASH_FREQUENCIES["80m"]; // For now we always select 40m, a common value supported by many flash chips and ESP boards
+    let flashSize = getFlashSizes(this.getChipFamily())[
+      this.flashSize ? this.flashSize : "4MB"
+    ]; // If size was autodetected we use it otherwise we default to 4MB
     let flashParams = pack("BB", flashMode, flashSize + flashFreq);
     let imageFlashParams = new Uint8Array(image, 2, 2);
 
@@ -856,13 +856,6 @@ export class ESPLoader extends EventTarget {
     return image;
   }
 
-  getFlashSizes() {
-    if (this.getChipFamily() == CHIP_FAMILY_ESP32) {
-      return ESP32_FLASH_SIZES;
-    }
-    return FLASH_SIZES;
-  }
-
   async flashId() {
     let SPIFLASH_RDID = 0x9f;
     let result = await this.runSpiFlashCommand(SPIFLASH_RDID, [], 24);
diff --git a/src/index.ts b/src/index.ts
index ed5e319..d0fa77a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,6 +8,7 @@ export {
   CHIP_FAMILY_ESP32,
   CHIP_FAMILY_ESP32S2,
   CHIP_FAMILY_ESP8266,
+  CHIP_FAMILY_ESP32C3,
 } from "./const";
 
 export const connect = async (logger: Logger) => {
diff --git a/src/stubs/esp32c3.json b/src/stubs/esp32c3.json
new file mode 100644
index 0000000..11bc92d
--- /dev/null
+++ b/src/stubs/esp32c3.json
@@ -0,0 +1,7 @@
+{
+  "text": "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",
+  "text_start": 1077411840,
+  "entry": 1077413488,
+  "data": "DEDIPw==",
+  "data_start": 1070164904
+}
\ No newline at end of file
diff --git a/src/stubs/index.ts b/src/stubs/index.ts
index 06e5804..772bd32 100644
--- a/src/stubs/index.ts
+++ b/src/stubs/index.ts
@@ -3,6 +3,7 @@ import {
   CHIP_FAMILY_ESP32,
   CHIP_FAMILY_ESP32S2,
   CHIP_FAMILY_ESP8266,
+  CHIP_FAMILY_ESP32C3
 } from "../const";
 import { toByteArray } from "../util";
 
@@ -31,6 +32,8 @@ export const getStubCode = async (chipFamily: ChipFamily): Promise<Stub> => {
     stubcode = await import("./esp32s2.json");
   } else if (chipFamily == CHIP_FAMILY_ESP8266) {
     stubcode = await import("./esp8266.json");
+  } else if (chipFamily == CHIP_FAMILY_ESP32C3) {
+    stubcode = await import("./esp32c3.json");
   }
 
   // Base64 decode the text and data