ESP32-WROOM-32E-N4

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-wroom-32e-n4",
  "title": "ESP32-WROOM-32E-N4",
  "brief": "Espressif Systems WiFi Modules, ESP32-WROOM-32E. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "iot-communication modules",
    "esp32-wroom-32e-n4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-WROOM-32E-N4",
    "manufacturer": "Espressif Systems",
    "package": "ESP32-WROOM-32E",
    "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-n4.kicad_sym",
      "footprint": "esp32-wroom-32e-n4.kicad_mod",
      "model_3d": "esp32-wroom-32e-n4-etched.glb",
      "model_3d_plain": "esp32-wroom-32e-n4.glb",
      "model_3d_step": "esp32-wroom-32e-n4-etched.step",
      "model_3d_step_plain": "esp32-wroom-32e-n4.step",
      "lbr": "esp32-wroom-32e-n4.lbr"
    },
    "distributor_links": {
      "lcsc": "C701341",
      "digikey": "1965-ESP32-WROOM-32E-N4TR-ND",
      "mouser": "356-ESP32WRM32E132PH"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:53:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-WROOM-32E-N4TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32WRM32E132PH",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Power supply input; recommended VDD33 is 3.0-3.6 V (3.3 V typical) with at least 0.5 A delivered by the external supply (Table 14, page 28)."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high enables the chip, low shuts it down, and the pin must not be left floating."
      },
      {
        "number": "4",
        "name": "SENSOR_VP",
        "type": "input",
        "description": "GPIO36, ADC1_CH0 and RTC_GPIO0 input."
      },
      {
        "number": "5",
        "name": "SENSOR_VN",
        "type": "input",
        "description": "GPIO39, ADC1_CH3 and RTC_GPIO3 input."
      },
      {
        "number": "6",
        "name": "IO34",
        "type": "input",
        "description": "GPIO34, ADC1_CH6 and RTC_GPIO4 input."
      },
      {
        "number": "7",
        "name": "IO35",
        "type": "input",
        "description": "GPIO35, ADC1_CH7 and RTC_GPIO5 input."
      },
      {
        "number": "8",
        "name": "IO32",
        "type": "bidirectional",
        "description": "GPIO32, also 32.768 kHz crystal oscillator input (XTAL_32K_P), ADC1_CH4, TOUCH9 and RTC_GPIO9."
      },
      {
        "number": "9",
        "name": "IO33",
        "type": "bidirectional",
        "description": "GPIO33, also 32.768 kHz crystal oscillator output (XTAL_32K_N), ADC1_CH5, TOUCH8 and RTC_GPIO8."
      },
      {
        "number": "10",
        "name": "IO25",
        "type": "bidirectional",
        "description": "GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6 and EMAC_RXD0."
      },
      {
        "number": "11",
        "name": "IO26",
        "type": "bidirectional",
        "description": "GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7 and EMAC_RXD1."
      },
      {
        "number": "12",
        "name": "IO27",
        "type": "bidirectional",
        "description": "GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17 and EMAC_RX_DV."
      },
      {
        "number": "13",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK and EMAC_TXD2."
      },
      {
        "number": "14",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2 and EMAC_TXD3; it should be kept low when the module is powered on."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "16",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3 and EMAC_RX_ER."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; the datasheet table refers to note 2 (GPIO6-GPIO11 are tied to the in-package flash and not led out)."
      },
      {
        "number": "23",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD and EMAC_RXD3; MTDO is a strapping pin that controls U0TXD printing."
      },
      {
        "number": "24",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0 and SD_DATA0; it is a boot-mode strapping pin (default pull-down)."
      },
      {
        "number": "25",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1 and EMAC_TX_CLK; it is a boot-mode strapping pin (default pull-up)."
      },
      {
        "number": "26",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4, 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 and EMAC_CLK_OUT; in variants with embedded QSPI PSRAM it is connected to the PSRAM and cannot be used for other functions."
      },
      {
        "number": "28",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17, HS1_DATA5, U2TXD and EMAC_CLK_OUT_180."
      },
      {
        "number": "29",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5, VSPICS0, HS1_DATA6 and EMAC_RX_CLK; it is a strapping pin used for SDIO slave timing (default pull-up)."
      },
      {
        "number": "30",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18, VSPICLK and HS1_DATA7."
      },
      {
        "number": "31",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19, VSPIQ, U0CTS and EMAC_TXD0."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; no function is listed for this pin."
      },
      {
        "number": "33",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21, VSPIHD and EMAC_TX_EN."
      },
      {
        "number": "34",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "GPIO3, U0RXD and CLK_OUT2; UART0 receive, used for firmware download and log output."
      },
      {
        "number": "35",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "GPIO1, U0TXD, CLK_OUT3 and EMAC_RXD2; UART0 transmit, used for firmware download and log output."
      },
      {
        "number": "36",
        "name": "IO22",
        "type": "bidirectional",
        "description": "GPIO22, VSPIWP, U0RTS and EMAC_TXD1."
      },
      {
        "number": "37",
        "name": "IO23",
        "type": "bidirectional",
        "description": "GPIO23, VSPID and HS1_STROBE."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed ground pad (EPAD) on the module bottom; soldering it to base-board ground is optional and improves thermal performance."
      }
    ],
    "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 datasheet covers the ESP32-WROOM-32E and ESP32-WROOM-32UE generically and does not map the MPN E; Pin 39 is the exposed pad (EPAD) labelled P_GND in the Figure 9 schematic and shown in Figure 3; the; Pins 17–22 are listed as NC with 'See note 2', but note 2 describes GPIO6–GPIO11 connected to in-pac"
        ],
        "pages_sent": 28,
        "cost_usd": 0.0888,
        "at": "2026-10-28T17:51:36"
      },
      "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": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          25.5,
          3.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "4bfba415b0d62dfb4d65738c131629e585c211a5da9ae9c370010e2dc1394b48",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "2f6e6e6e6be3f0c030b1d38821bd8f89d32ac5667e4f6ac898f81becd9473d7e",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "ESP32-WROOM-32E",
      "Category": "IoT/Communication Modules",
      "Pins": "39"
    },
    "appearance": {
      "contacts": {
        "quote": "Solder — Sn-Ag-Cu (SAC305) lead-free solder alloy Figure 15: Reflow Profile",
        "page": 46,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "4c7a345d1c1bfec34c38665639e39a7f43b79a35a12f6adcc2c7c0f83850f8b8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4c7a345d1c1bfec34c38665639e39a7f43b79a35a12f6adcc2c7c0f83850f8b8",
      "rows": [
        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Current delivered by external power supply",
          "symbol": "IVDD",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "T",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "85 °C version",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTORE",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Differential nonlinearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -7,
          "typ": null,
          "max": 7,
          "conditions": "RTC controller; ADC connected to an external 100 nF capacitor; DC signal input; ambient temperature at 25 °C; Wi-Fi&Bluetooth off",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Integral nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "RTC controller; ADC connected to an external 100 nF capacitor; DC signal input; ambient temperature at 25 °C; Wi-Fi&Bluetooth off",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -23,
          "typ": null,
          "max": 23,
          "conditions": "Atten = 0, effective measurement range of 100 ∼ 950 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "Atten = 1, effective measurement range of 100 ∼ 1250 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "Atten = 2, effective measurement range of 150 ∼ 1750 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -60,
          "typ": null,
          "max": 60,
          "conditions": "Atten = 3, effective measurement range of 150 ∼ 2450 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (3.3 V)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "Flash, 3.3 V supply",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "Maximum clock frequency",
          "symbol": "FC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "Flash",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "Crystal oscillator frequency tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "40 MHz crystal",
          "source_page": 37,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "ESP32-WROOM-32E-N4 (Espressif Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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