ESP32-WROOM-32E-N8R2

{
  "slug": "esp32-wroom-32e-n8r2",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems WiFi Modules, LCC-38(18x25.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "iot-communication modules",
    "esp32-wroom-32e-n8r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-wroom-32e-n8r2.kicad_sym",
    "esp32-wroom-32e-n8r2.kicad_mod",
    "esp32-wroom-32e-n8r2.glb",
    "esp32-wroom-32e-n8r2.step",
    "esp32-wroom-32e-n8r2.lbr",
    "docs/hero.png",
    "docs/esp32-wroom-32e-n8r2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "ESP32-WROOM-32E-N8R2",
    "manufacturer": "Espressif Systems",
    "package": "LCC-38(18x25.5)",
    "pin_count": 39,
    "category": "IoT/Communication Modules",
    "subcategory": "WiFi Modules",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-wroom-32e-n8r2.kicad_sym",
      "footprint": "esp32-wroom-32e-n8r2.kicad_mod",
      "model_3d": "esp32-wroom-32e-n8r2-etched.glb",
      "model_3d_plain": "esp32-wroom-32e-n8r2.glb",
      "model_3d_step": "esp32-wroom-32e-n8r2-etched.step",
      "model_3d_step_plain": "esp32-wroom-32e-n8r2.step",
      "lbr": "esp32-wroom-32e-n8r2.lbr"
    },
    "distributor_links": {
      "lcsc": "C5361945",
      "digikey": "5407-ESP32-WROOM-32E-N8R2TR-ND",
      "mouser": "356-ESP32WRM32EN8R2"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:59:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5407-ESP32-WROOM-32E-N8R2TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32WRM32EN8R2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection for the module."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Power supply input; VDD33 is recommended at 3.0 V to 3.6 V (3.3 V typ.) with an external supply capable of at least 0.5 A."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high enables the chip and low shuts it down, and the pin must not be left floating."
      },
      {
        "number": "4",
        "name": "SENSOR_VP",
        "type": "input",
        "description": "Input-only pin for GPIO36, also usable as ADC1_CH0 and RTC_GPIO0."
      },
      {
        "number": "5",
        "name": "SENSOR_VN",
        "type": "input",
        "description": "Input-only pin for GPIO39, also usable as ADC1_CH3 and RTC_GPIO3."
      },
      {
        "number": "6",
        "name": "IO34",
        "type": "input",
        "description": "Input-only pin for GPIO34, also usable as ADC1_CH6 and RTC_GPIO4."
      },
      {
        "number": "7",
        "name": "IO35",
        "type": "input",
        "description": "Input-only pin for GPIO35, also usable as ADC1_CH7 and RTC_GPIO5."
      },
      {
        "number": "8",
        "name": "IO32",
        "type": "bidirectional",
        "description": "GPIO32 that can also serve as the 32.768 kHz crystal oscillator input (XTAL_32K_P), ADC1_CH4, TOUCH9 and RTC_GPIO9."
      },
      {
        "number": "9",
        "name": "IO33",
        "type": "bidirectional",
        "description": "GPIO33 that can also serve as the 32.768 kHz crystal oscillator output (XTAL_32K_N), ADC1_CH5, TOUCH8 and RTC_GPIO8."
      },
      {
        "number": "10",
        "name": "IO25",
        "type": "bidirectional",
        "description": "GPIO25 that can also serve as DAC_1, ADC2_CH8, RTC_GPIO6 and EMAC_RXD0."
      },
      {
        "number": "11",
        "name": "IO26",
        "type": "bidirectional",
        "description": "GPIO26 that can also serve as DAC_2, ADC2_CH9, RTC_GPIO7 and EMAC_RXD1."
      },
      {
        "number": "12",
        "name": "IO27",
        "type": "bidirectional",
        "description": "GPIO27 that can also serve as ADC2_CH7, TOUCH7, RTC_GPIO17 and EMAC_RX_DV."
      },
      {
        "number": "13",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14 that can also serve as ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK and EMAC_TXD2."
      },
      {
        "number": "14",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12 (MTDI strapping function, also ADC2_CH5, TOUCH5, RTC_GPIO15, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3); the schematic notes it should be kept low at power-on."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection for the module."
      },
      {
        "number": "16",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13 that can also serve as ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3 and EMAC_RX_ER."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; Table 3 gives no function and refers to note 2 (GPIO6 to GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "23",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15 that can also serve as ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD and EMAC_RXD3; it is a boot strapping pin (MTDO, U0TXD printing control)."
      },
      {
        "number": "24",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2 that is a boot-mode strapping pin (default pull-down) and can also serve as ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0 and SD_DATA0."
      },
      {
        "number": "25",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 that is a boot-mode strapping pin (default pull-up) and can also serve as ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1 and EMAC_TX_CLK."
      },
      {
        "number": "26",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 that can also serve as ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1 and EMAC_TX_ER."
      },
      {
        "number": "27",
        "name": "IO16",
        "type": "bidirectional",
        "description": "GPIO16 (HS1_DATA4, U2RXD, EMAC_CLK_OUT); in module variants embedding the ESP32-D0WDR2-V3 it is tied to the embedded PSRAM and cannot be used for other functions."
      },
      {
        "number": "28",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17 that can also serve as HS1_DATA5, U2TXD and EMAC_CLK_OUT_180."
      },
      {
        "number": "29",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 that is a boot strapping pin (SDIO slave timing, default pull-up) and can also serve as VSPICS0, HS1_DATA6 and EMAC_RX_CLK."
      },
      {
        "number": "30",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 that can also serve as VSPICLK and HS1_DATA7."
      },
      {
        "number": "31",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 that can also serve as VSPIQ, U0CTS and EMAC_TXD0."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "No function is listed for this pin in Table 3."
      },
      {
        "number": "33",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21 that can also serve as VSPIHD and EMAC_TX_EN."
      },
      {
        "number": "34",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "GPIO3 used as UART0 receive (U0RXD), which is used for firmware download and log output, and can also serve as CLK_OUT2."
      },
      {
        "number": "35",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "GPIO1 used as UART0 transmit (U0TXD), which is used for firmware download and log output, and can also serve as CLK_OUT3 and EMAC_RXD2."
      },
      {
        "number": "36",
        "name": "IO22",
        "type": "bidirectional",
        "description": "GPIO22 that can also serve as VSPIWP, U0RTS and EMAC_TXD1."
      },
      {
        "number": "37",
        "name": "IO23",
        "type": "bidirectional",
        "description": "GPIO23 that can also serve as VSPID and HS1_STROBE."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection for the module."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Ground thermal pad (labelled P_GND in the schematic); 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-WROOM-32E-N8R2 does not appear in the supplied pages. The ordering table (Table 1, pag; Pin 27 (IO16) is reserved for embedded PSRAM only in variants embedding ESP32-D0WDR2-V3. The 2 MB PS; Pin 39 is not counted in the 38-pin Table 3. It is included here because it appears as GND in Figure"
        ],
        "pages_sent": 28,
        "cost_usd": 0.0908,
        "at": "2026-10-28T17:56:42"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf",
        "pages": 52,
        "sha256": "4c7a345d1c1bfec3",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 39,
        "described": 39,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-wroom-32e-n8r2.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": "d7a74548e125fbc1171107c4cebf0d2b3d7ac966fea24010b6fb95c8cb8f8deb",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-wroom-32e-n8r2-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": "5f21f5bd945e06068217fa9c4d67e80626a13b2c40e65556e69519221d1d8b1c",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}