ESP32-S3-WROOM-1-N4R2

{
  "slug": "esp32-s3-wroom-1-n4r2",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems WiFi Modules, ESP32-S3-WROOM-1. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "iot-communication modules",
    "esp32-s3-wroom-1-n4r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-s3-wroom-1-n4r2.kicad_sym",
    "esp32-s3-wroom-1-n4r2.kicad_mod",
    "esp32-s3-wroom-1-n4r2.glb",
    "esp32-s3-wroom-1-n4r2.step",
    "esp32-s3-wroom-1-n4r2.lbr",
    "docs/hero.png",
    "docs/esp32-s3-wroom-1-n4r2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "ESP32-S3-WROOM-1-N4R2",
    "manufacturer": "Espressif Systems",
    "package": "ESP32-S3-WROOM-1",
    "pin_count": 41,
    "category": "IoT/Communication Modules",
    "subcategory": "WiFi Modules",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-s3-wroom-1-n4r2.kicad_sym",
      "footprint": "esp32-s3-wroom-1-n4r2.kicad_mod",
      "model_3d": "esp32-s3-wroom-1-n4r2-etched.glb",
      "model_3d_plain": "esp32-s3-wroom-1-n4r2.glb",
      "model_3d_step": "esp32-s3-wroom-1-n4r2-etched.step",
      "model_3d_step_plain": "esp32-s3-wroom-1-n4r2.step",
      "lbr": "esp32-s3-wroom-1-n4r2.lbr"
    },
    "distributor_links": {
      "lcsc": "C2913203",
      "digikey": "5407-ESP32-S3-WROOM-1-N4R2TR-ND",
      "mouser": "356-ESP32S3WROM1N4R2"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:50:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5407-ESP32-S3-WROOM-1-N4R2TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32S3WROM1N4R2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin of the module."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Power supply input; VDD33 is 3.0 V to 3.6 V (3.3 V typical) with an absolute maximum of 3.6 V, and the external supply should deliver at least 0.5 A."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high enables the chip and low powers it off, and the pin must not be left floating."
      },
      {
        "number": "4",
        "name": "IO4",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO4, also usable as RTC_GPIO4, TOUCH4 and ADC1_CH3."
      },
      {
        "number": "5",
        "name": "IO5",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO5, also usable as RTC_GPIO5, TOUCH5 and ADC1_CH4."
      },
      {
        "number": "6",
        "name": "IO6",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO6, also usable as RTC_GPIO6, TOUCH6 and ADC1_CH5."
      },
      {
        "number": "7",
        "name": "IO7",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO7, also usable as RTC_GPIO7, TOUCH7 and ADC1_CH6."
      },
      {
        "number": "8",
        "name": "IO15",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO15, also usable as RTC_GPIO15, U0RTS, ADC2_CH4 and XTAL_32K_P."
      },
      {
        "number": "9",
        "name": "IO16",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO16, also usable as RTC_GPIO16, U0CTS, ADC2_CH5 and XTAL_32K_N."
      },
      {
        "number": "10",
        "name": "IO17",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO17, also usable as RTC_GPIO17, U1TXD and ADC2_CH6."
      },
      {
        "number": "11",
        "name": "IO18",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO18, also usable as RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3."
      },
      {
        "number": "12",
        "name": "IO8",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO8, also usable as RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1."
      },
      {
        "number": "13",
        "name": "IO19",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO19, also usable as RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB_D-."
      },
      {
        "number": "14",
        "name": "IO20",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO20, also usable as RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB_D+."
      },
      {
        "number": "15",
        "name": "IO3",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO3, also usable as RTC_GPIO3, TOUCH3 and ADC1_CH2; it is a strapping pin for the JTAG signal source and is floating by default at reset."
      },
      {
        "number": "16",
        "name": "IO46",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO46; it is a strapping pin for chip boot mode and ROM message printing, with a weak pull-down by default."
      },
      {
        "number": "17",
        "name": "IO9",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO9, also usable as RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD."
      },
      {
        "number": "18",
        "name": "IO10",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO10, also usable as RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0."
      },
      {
        "number": "19",
        "name": "IO11",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO11, also usable as RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID."
      },
      {
        "number": "20",
        "name": "IO12",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO12, also usable as RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK."
      },
      {
        "number": "21",
        "name": "IO13",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO13, also usable as RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ."
      },
      {
        "number": "22",
        "name": "IO14",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO14, also usable as RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP."
      },
      {
        "number": "23",
        "name": "IO21",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO21, also usable as RTC_GPIO21."
      },
      {
        "number": "24",
        "name": "IO47",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO47, also usable as SPICLK_P_DIFF and SUBSPICLK_P_DIFF; on modules embedding ESP32-S3R16V its working voltage is 1.8 V instead of 3.3 V."
      },
      {
        "number": "25",
        "name": "IO48",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO48, also usable as SPICLK_N_DIFF and SUBSPICLK_N_DIFF; on modules embedding ESP32-S3R16V its working voltage is 1.8 V instead of 3.3 V."
      },
      {
        "number": "26",
        "name": "IO45",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO45; it is a strapping pin that sets the VDD_SPI voltage, with a weak pull-down by default."
      },
      {
        "number": "27",
        "name": "IO0",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO0, also usable as RTC_GPIO0; it is a strapping pin for chip boot mode, with a weak pull-up by default."
      },
      {
        "number": "28",
        "name": "IO35",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO35, also usable as SPIIO6, FSPID and SUBSPID; the default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) this pin is not available for other uses."
      },
      {
        "number": "29",
        "name": "IO36",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO36, also usable as SPIIO7, FSPICLK and SUBSPICLK; the default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) this pin is not available for other uses."
      },
      {
        "number": "30",
        "name": "IO37",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO37, also usable as SPIDQS, FSPIQ and SUBSPIQ; the default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) this pin is not available for other uses."
      },
      {
        "number": "31",
        "name": "IO38",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO38, also usable as FSPIWP and SUBSPIWP."
      },
      {
        "number": "32",
        "name": "IO39",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO39, also usable as MTCK, CLK_OUT3 and SUBSPICS1."
      },
      {
        "number": "33",
        "name": "IO40",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO40, also usable as MTDO and CLK_OUT2."
      },
      {
        "number": "34",
        "name": "IO41",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO41, also usable as MTDI and CLK_OUT1."
      },
      {
        "number": "35",
        "name": "IO42",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO42, also usable as MTMS."
      },
      {
        "number": "36",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "UART0 receive pin U0RXD, also usable as GPIO44 and CLK_OUT2."
      },
      {
        "number": "37",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "UART0 transmit pin U0TXD, also usable as GPIO43 and CLK_OUT1."
      },
      {
        "number": "38",
        "name": "IO2",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO2, also usable as RTC_GPIO2, TOUCH2 and ADC1_CH1."
      },
      {
        "number": "39",
        "name": "IO1",
        "type": "bidirectional",
        "description": "General-purpose I/O GPIO1, also usable as RTC_GPIO1, TOUCH1 and ADC1_CH0."
      },
      {
        "number": "40",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin of the module."
      },
      {
        "number": "41",
        "name": "EPAD",
        "type": "power_in",
        "description": "Exposed ground pad; soldering it to the base-board ground is optional but improves thermal performance, and too much solder paste can degrade adhesion of the other pins."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN ESP32-S3-WROOM-1-N4R2 does not appear in the 28 pages provided; the series comparison table ; The package hint 25.5x18 mm matches the ESP32-S3-WROOM-1 (PCB antenna) dimensions on page 42. The -1; Pin types were mapped from the table's 'I/O/T' classes to KiCad 'bidirectional'. The datasheet footn"
        ],
        "pages_sent": 28,
        "cost_usd": 0.099,
        "at": "2026-10-28T17:49:38"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
        "pages": 53,
        "sha256": "27d71971da07c280",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-s3-wroom-1-n4r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18.0,
          25.5,
          3.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "92271ede10727d53989f52bbcc1e231535a52f6cd538eb151c5e6e052529e279",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s3-wroom-1-n4r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18.0,
          25.5,
          3.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "04a20e6f858c37617a92767645ff78823f6209ce70bbb904d8be5e0f841d0a62",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}