ESP32-C3-WROOM-02-N4

{
  "slug": "esp32-c3-wroom-02-n4",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems WiFi Modules, VFQFN-32-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "iot-communication modules",
    "esp32-c3-wroom-02-n4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-c3-wroom-02-n4.kicad_sym",
    "esp32-c3-wroom-02-n4.kicad_mod",
    "esp32-c3-wroom-02-n4.glb",
    "esp32-c3-wroom-02-n4.step",
    "esp32-c3-wroom-02-n4.lbr",
    "docs/hero.png",
    "docs/esp32-c3-wroom-02-n4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "ESP32-C3-WROOM-02-N4",
    "manufacturer": "Espressif Systems",
    "package": "VFQFN-32-EP",
    "pin_count": 19,
    "category": "IoT/Communication Modules",
    "subcategory": "WiFi Modules",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-c3-wroom-02-n4.kicad_sym",
      "footprint": "esp32-c3-wroom-02-n4.kicad_mod",
      "model_3d": "esp32-c3-wroom-02-n4-etched.glb",
      "model_3d_plain": "esp32-c3-wroom-02-n4.glb",
      "model_3d_step": "esp32-c3-wroom-02-n4-etched.step",
      "model_3d_step_plain": "esp32-c3-wroom-02-n4.step",
      "lbr": "esp32-c3-wroom-02-n4.lbr"
    },
    "distributor_links": {
      "lcsc": "C2934560",
      "digikey": "1965-ESP32-C3-WROOM-02-N4TR-ND",
      "mouser": "356-ESP32C3WROOM02N4"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:47:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-C3-WROOM-02-N4TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32C3WROOM02N4",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "3V3",
        "type": "power_in",
        "description": "Module power supply, 3.0 to 3.6 V (3.3 V typ) with at least 0.5 A delivered by the external supply."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high turns the chip on, low powers it off; must not be left floating."
      },
      {
        "number": "3",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 with ADC1_CH4, FSPIHD and MTMS functions."
      },
      {
        "number": "4",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 with ADC2_CH0, FSPIWP and MTDI functions."
      },
      {
        "number": "5",
        "name": "IO6",
        "type": "bidirectional",
        "description": "GPIO6 with FSPICLK and MTCK functions."
      },
      {
        "number": "6",
        "name": "IO7",
        "type": "bidirectional",
        "description": "GPIO7 with FSPID and MTDO functions."
      },
      {
        "number": "7",
        "name": "IO8",
        "type": "bidirectional",
        "description": "GPIO8, a strapping pin (floating by default) that also controls ROM message printing."
      },
      {
        "number": "8",
        "name": "IO9",
        "type": "bidirectional",
        "description": "GPIO9, a strapping pin with weak pull-up by default (SPI boot); low selects Joint Download Boot mode."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "10",
        "name": "IO10",
        "type": "bidirectional",
        "description": "GPIO10 with FSPICS0 function."
      },
      {
        "number": "11",
        "name": "RXD",
        "type": "bidirectional",
        "description": "GPIO20 / U0RXD, UART0 receive used for firmware download and log output."
      },
      {
        "number": "12",
        "name": "TXD",
        "type": "bidirectional",
        "description": "GPIO21 / U0TXD, UART0 transmit used for firmware download and log output."
      },
      {
        "number": "13",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 with USB_D- function for the USB Serial/JTAG controller."
      },
      {
        "number": "14",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 with USB_D+ function for the USB Serial/JTAG controller."
      },
      {
        "number": "15",
        "name": "IO3",
        "type": "bidirectional",
        "description": "GPIO3 with ADC1_CH3 function."
      },
      {
        "number": "16",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2, a strapping pin (floating by default, recommended pulled up) with ADC1_CH2 and FSPIQ functions."
      },
      {
        "number": "17",
        "name": "IO1",
        "type": "bidirectional",
        "description": "GPIO1 with ADC1_CH1 and XTAL_32K_N functions."
      },
      {
        "number": "18",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 with ADC1_CH0 and XTAL_32K_P functions."
      },
      {
        "number": "19",
        "name": "GND",
        "type": "power_in",
        "description": "Ground exposed pad (EPAD); soldering to board ground is optional but improves thermal performance."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package hint VFQFN-32-EP does not match this MPN. ESP32-C3-WROOM-02-N4 is a 19-pad module (18 edge p; The pin table is in the text, so the page images were not read. The pin numbers and the GND on pin 1",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 47,
        "cost_usd": 0.2659,
        "at": "2026-10-28T17:46:05"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_en.pdf",
        "pages": 47,
        "sha256": "2375b1be75ebbfcf",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 19,
        "described": 19,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-c3-wroom-02-n4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18.0,
          20.0,
          3.199
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 3.1,
        "footprint_binding": "identity",
        "sha256": "963d8b40a70f5430f293099a929cedb0182176499092cdffbe9195264163a91d",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-c3-wroom-02-n4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18.0,
          20.0,
          3.199
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 3.1,
        "footprint_binding": "identity",
        "sha256": "06a84dae8b62aeb7fca6c4777e1ce465da96d54d817e79150175f7e798344e8d",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}