ESP32-WROOM-32E-H4

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-wroom-32e-h4",
  "title": "ESP32-WROOM-32E-H4",
  "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-h4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-WROOM-32E-H4",
    "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-h4.kicad_sym",
      "footprint": "esp32-wroom-32e-h4.kicad_mod",
      "model_3d": "esp32-wroom-32e-h4-etched.glb",
      "model_3d_plain": "esp32-wroom-32e-h4.glb",
      "model_3d_step": "esp32-wroom-32e-h4-etched.step",
      "model_3d_step_plain": "esp32-wroom-32e-h4.step",
      "lbr": "esp32-wroom-32e-h4.lbr"
    },
    "distributor_links": {
      "lcsc": "C3013935",
      "digikey": "1965-ESP32-WROOM-32E-H4TR-ND",
      "mouser": "356-ESP32WRM320EH3PS"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:58:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-WROOM-32E-H4TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32WRM320EH3PS",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Module power supply input."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high turns the chip on, low shuts the chip down, and the pin must not be left floating."
      },
      {
        "number": "4",
        "name": "SENSOR_VP",
        "type": "input",
        "description": "Input-only pin carrying GPIO36, ADC1_CH0 and RTC_GPIO0."
      },
      {
        "number": "5",
        "name": "SENSOR_VN",
        "type": "input",
        "description": "Input-only pin carrying GPIO39, ADC1_CH3 and RTC_GPIO3."
      },
      {
        "number": "6",
        "name": "IO34",
        "type": "input",
        "description": "Input-only pin carrying GPIO34, ADC1_CH6 and RTC_GPIO4."
      },
      {
        "number": "7",
        "name": "IO35",
        "type": "input",
        "description": "Input-only pin carrying GPIO35, ADC1_CH7 and RTC_GPIO5."
      },
      {
        "number": "8",
        "name": "IO32",
        "type": "bidirectional",
        "description": "GPIO32, also XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9 and RTC_GPIO9."
      },
      {
        "number": "9",
        "name": "IO33",
        "type": "bidirectional",
        "description": "GPIO33, also XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8 and RTC_GPIO8."
      },
      {
        "number": "10",
        "name": "IO25",
        "type": "bidirectional",
        "description": "GPIO25, also DAC_1, ADC2_CH8, RTC_GPIO6 and EMAC_RXD0."
      },
      {
        "number": "11",
        "name": "IO26",
        "type": "bidirectional",
        "description": "GPIO26, also DAC_2, ADC2_CH9, RTC_GPIO7 and EMAC_RXD1."
      },
      {
        "number": "12",
        "name": "IO27",
        "type": "bidirectional",
        "description": "GPIO27, also ADC2_CH7, TOUCH7, RTC_GPIO17 and EMAC_RX_DV."
      },
      {
        "number": "13",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14, also ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK and EMAC_TXD2."
      },
      {
        "number": "14",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12, also ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2 and EMAC_TXD3."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "16",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13, also ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3 and EMAC_RX_ER."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; GPIO6 to GPIO11 go to the on-module SPI flash and are not led out."
      },
      {
        "number": "23",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15, also ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD and EMAC_RXD3."
      },
      {
        "number": "24",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2, also ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0 and SD_DATA0."
      },
      {
        "number": "25",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0, also ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1 and EMAC_TX_CLK."
      },
      {
        "number": "26",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4, also ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1 and EMAC_TX_ER."
      },
      {
        "number": "27",
        "name": "IO16",
        "type": "bidirectional",
        "description": "GPIO16, also HS1_DATA4, U2RXD and EMAC_CLK_OUT; it cannot be used on variants with embedded PSRAM because it connects to the PSRAM."
      },
      {
        "number": "28",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17, also HS1_DATA5, U2TXD and EMAC_CLK_OUT_180."
      },
      {
        "number": "29",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5, also VSPICS0, HS1_DATA6 and EMAC_RX_CLK."
      },
      {
        "number": "30",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18, also VSPICLK and HS1_DATA7."
      },
      {
        "number": "31",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19, also VSPIQ, U0CTS and EMAC_TXD0."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "33",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21, also VSPIHD and EMAC_TX_EN."
      },
      {
        "number": "34",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "GPIO3, also U0RXD and CLK_OUT2."
      },
      {
        "number": "35",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "GPIO1, also U0TXD, CLK_OUT3 and EMAC_RXD2."
      },
      {
        "number": "36",
        "name": "IO22",
        "type": "bidirectional",
        "description": "GPIO22, also VSPIWP, U0RTS and EMAC_TXD1."
      },
      {
        "number": "37",
        "name": "IO23",
        "type": "bidirectional",
        "description": "GPIO23, also VSPID and HS1_STROBE."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed ground pad (P_GND); soldering it to the base board ground is optional but can improve 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 MPN ESP32-WROOM-32E-H4 is not named in the supplied text. The datasheet covers the ESP32-WROOM-3; Package hint 25.5 x 18 mm matches the ESP32-WROOM-32E module dimensions (25.5±0.15 x 18±0.15 mm, pag; Table 3 lists 38 pins and does not include pin 39. Pin 39 (P_GND, the EPAD) is taken from Figure 9 ("
        ],
        "pages_sent": 28,
        "cost_usd": 0.0896,
        "at": "2026-10-28T17:55:53"
      },
      "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-h4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18,
          25.5,
          3.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "d396fd04a4d285f02694a8c40f484f6d5933884f77ad2595c8404ee1ac04cb41",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-wroom-32e-h4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18,
          25.5,
          3.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "e5f56a77aba1b0b146a8fb6648ad5f0dab219e09667515c805b533feead04476",
        "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": "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": "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": 105,
          "conditions": "105 °C version",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Pin capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "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": "Low-level sink current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 28,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOL = 0.495 V, output drive strength set to the maximum",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD3P3_CPU power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, output drive strength set to the maximum",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD3P3_RTC power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, output drive strength set to the maximum",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD_SDIO power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, output drive strength set to the maximum",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "Resistance of internal pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "Resistance of internal pull-down resistor",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage of CHIP_PU to shut down the chip",
          "symbol": "VIL_nRST",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "",
          "source_page": 29,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (3.3 V flash)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "Power supply voltage (3.3 V)",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "Flash maximum clock frequency",
          "symbol": "FC",
          "kind": "timing",
          "unit": "MHz",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "ADC 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": "ADC 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": "ADC total error",
          "symbol": "",
          "kind": "tolerance",
          "unit": "mV",
          "min": -23,
          "typ": null,
          "max": 23,
          "conditions": "Atten = 0, effective measurement range of 100 ∼ 950 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "ADC total error",
          "symbol": "",
          "kind": "tolerance",
          "unit": "mV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "Atten = 1, effective measurement range of 100 ∼ 1250 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "ADC total error",
          "symbol": "",
          "kind": "tolerance",
          "unit": "mV",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "Atten = 2, effective measurement range of 150 ∼ 1750 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "ADC total error",
          "symbol": "",
          "kind": "tolerance",
          "unit": "mV",
          "min": -60,
          "typ": null,
          "max": 60,
          "conditions": "Atten = 3, effective measurement range of 150 ∼ 2450 mV",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Receiver sensitivity, Basic Data Rate",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBm",
          "min": -90,
          "typ": -89,
          "max": -88,
          "conditions": "@0.1% BER",
          "source_page": 33,
          "source": "datasheet"
        },
        {
          "name": "Receiver sensitivity, Bluetooth LE",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBm",
          "min": -94,
          "typ": -93,
          "max": -92,
          "conditions": "@30.8% PER",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "RF power control range",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBm",
          "min": -12,
          "typ": null,
          "max": 9,
          "conditions": "",
          "source_page": 34,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "esp32-wroom-32e-h4"
  ],
  "discovery_pitch": "ESP32-WROOM-32E-H4 (Espressif Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-wroom-32e-h4.kicad_sym",
    "esp32-wroom-32e-h4.kicad_mod",
    "esp32-wroom-32e-h4.glb",
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