{
 "slug": "seeed-xiao-esp32c3",
 "name": "Seeed XIAO ESP32-C3",
 "maker": "Seeed Studio",
 "category": "boards",
 "categoryLabel": "Boards & controllers",
 "status": "listed",
 "statusLabel": "Listed by maker",
 "description": "The cheapest way into Wi-Fi and Bluetooth on a board the size of a postage stamp.",
 "goodFor": "Add Wi-Fi and Bluetooth to a project for the price of a coffee.",
 "youNeed": "USB-C cable, the supplied antenna, and firmware you write.",
 "tradeoff": "Single core, four ADC pins and no on-board antenna — it is cheap because it is minimal.",
 "tags": [
  "build",
  "ESP32-C3",
  "Budget",
  "Wi-Fi"
 ],
 "price": "US$4.99",
 "priceShort": "$4.99",
 "priceFrom": "seeedstudio.com",
 "checked": "2026-09-18",
 "url": "https://gadgets.sh/devices/seeed-xiao-esp32c3/",
 "shortUrl": "https://gadgets.sh/seeed-xiao-esp32c3",
 "markdown": "https://gadgets.sh/devices/seeed-xiao-esp32c3.md",
 "image": "https://gadgets.sh/assets/seeed-xiao-esp32c3.jpg",
 "cutout": "https://gadgets.sh/assets/cutouts/seeed-xiao-esp32c3.webp",
 "shareCard": "https://gadgets.sh/og/seeed-xiao-esp32c3.jpg",
 "shops": [
  {
   "merchant": "Seeed Studio",
   "label": "Buy from Seeed Studio",
   "kind": "shop",
   "orderable": true,
   "url": "https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=seeed-xiao-esp32c3&utm_content=api",
   "note": null
  },
  {
   "merchant": "The Pi Hut",
   "label": "Buy from The Pi Hut",
   "kind": "shop",
   "orderable": true,
   "url": "https://thepihut.com/products/seeed-xiao-esp32c3?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=seeed-xiao-esp32c3&utm_content=api",
   "note": "In stock at The Pi Hut when checked on 2026-09-29."
  },
  {
   "merchant": "DigiKey",
   "label": "Buy from DigiKey",
   "kind": "shop",
   "orderable": true,
   "url": "https://www.digikey.com/en/products/detail/seeed-technology-co-ltd/113991054/16652880?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=seeed-xiao-esp32c3&utm_content=api",
   "note": "In stock at DigiKey when checked on 2026-09-29."
  },
  {
   "merchant": "Seeed Studio",
   "label": "Documentation at wiki.seeedstudio.com",
   "kind": "docs",
   "orderable": false,
   "url": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=seeed-xiao-esp32c3&utm_content=api",
   "note": "This link is the maker’s documentation. Ordering may be elsewhere on their site."
  }
 ],
 "specs": [
  {
   "group": "Processor & memory",
   "rows": [
    {
     "label": "Processor",
     "value": "ESP32-C3, single-core 32-bit RISC-V with a four-stage pipeline, up to 160 MHz",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Memory",
     "value": "400 KB SRAM and 4 MB flash on-chip",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Dimensions",
     "value": "21 × 17.8 mm",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    }
   ]
  },
  {
   "group": "Radio",
   "rows": [
    {
     "label": "Wi-Fi",
     "value": "IEEE 802.11 b/g/n, supporting station, SoftAP, combined and promiscuous modes",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Bluetooth",
     "value": "Bluetooth LE 5.0 with Bluetooth mesh",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Antenna",
     "value": "External RF antenna included; the maker presents it as the source of the board's RF performance",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    }
   ]
  },
  {
   "group": "Interfaces & power",
   "rows": [
    {
     "label": "Buses",
     "value": "1× UART, 1× I²C, 1× SPI",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Pins",
     "value": "11 digital I/O usable as PWM; 4 analogue I/O usable as ADC",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Power input",
     "value": "5 V on VIN, or 3.7 V on the battery pin",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Output",
     "value": "Maximum 3.3 V, 500 mA output; tested at a 3.8 V battery input with 3 A source capability",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Charging",
     "value": "380 mA fast charge; 40 mA trickle",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Wi-Fi current",
     "value": "Typical: 75 mA active, 25 mA modem sleep, 4 mA light sleep",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Bluetooth current",
     "value": "Typical: 27 mA modem sleep, 10 mA light sleep",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Deep sleep",
     "value": "44 µA in the specification table; about 43 µA in the feature list on the same page",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Temperature",
     "value": "−40 to 85 °C working range",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Controls",
     "value": "Reset button and boot button",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Price checked",
     "value": "US$4.99 at the maker's store",
     "source": "https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html"
    }
   ]
  },
  {
   "group": "Compatibility",
   "rows": [
    {
     "label": "Grove Shield",
     "value": "Compatible with the Grove Shield for Seeeduino XIAO",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    },
    {
     "label": "Expansion caveat",
     "value": "On the Seeeduino XIAO Expansion board the SWD spring contacts are not compatible with this board",
     "source": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
    }
   ]
  }
 ],
 "docs": [
  {
   "label": "Maker specifications and documentation",
   "url": "https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/"
  },
  {
   "label": "Seeed Studio store listing",
   "url": "https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html"
  },
  {
   "label": "Espressif ESP32-C3 datasheet",
   "url": "https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/esp32-c3_datasheet.pdf"
  },
  {
   "label": "XIAO ESP32-C3 v1.3 schematic",
   "url": "https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/XIAO_ESP32C3_v1.3_SCH_260116.pdf"
  }
 ],
 "blueprint": {
  "openness": "schematics",
  "opennessLabel": "Schematics published",
  "summary": "Seeed publishes the schematic PDF and chip datasheet for the XIAO ESP32C3; the related GitHub repo has only a footprint/pinout library, not the module's own PCB source.",
  "files": [
   {
    "kind": "schematic",
    "label": "XIAO ESP32C3 schematic (PDF, rev 1.3)",
    "url": "https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/XIAO_ESP32C3_v1.3_SCH_260116.pdf",
    "format": "PDF"
   },
   {
    "kind": "datasheet",
    "label": "ESP32-C3 datasheet (PDF)",
    "url": "https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/esp32-c3_datasheet.pdf",
    "format": "PDF"
   },
   {
    "kind": "pinout",
    "label": "Pinout diagram, front (PNG)",
    "url": "https://github.com/Seeed-Studio/OSHW-XIAO-Series/blob/main/pinout/XIAO_ESP32-C3_front_pinout.png",
    "format": "PNG"
   }
  ],
  "repos": [
   {
    "url": "https://github.com/Seeed-Studio/OSHW-XIAO-Series",
    "role": "docs",
    "official": true,
    "license": "MIT",
    "stars": 91,
    "pushed": "2026-09-21"
   }
  ],
  "parts": [
   {
    "part": "Espressif ESP32-C3",
    "role": "MCU (single-core RISC-V, Wi-Fi/BLE)",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf"
   }
  ],
  "notes": "Seeed-Studio/OSHW-XIAO-Series contains a KiCad footprint/symbol library for using the XIAO module as a component in other designs, not the XIAO board's own internal schematic/PCB source, so overall openness is 'schematics' rather than 'open-hardware'.",
  "checked": "2026-09-27"
 },
 "sourceFiles": null,
 "firmware": [],
 "chips": [
  "esp32-c3"
 ]
}