component
ESP32-WROOM-32UE
Public Made by Adomby adom
Espressif Systems RF and Wireless, 38-SMD Module. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "esp32-wroom-32ue",
"title": "ESP32-WROOM-32UE",
"brief": "Espressif Systems RF and Wireless, 38-SMD Module. 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",
"rf and wireless",
"esp32-wroom-32ue",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ESP32-WROOM-32UE",
"manufacturer": "Espressif Systems",
"package": "38-SMD Module",
"pin_count": 39,
"category": "RF and Wireless",
"subcategory": "RF and Wireless",
"datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf",
"parts": {
"symbol": "esp32-wroom-32ue.kicad_sym",
"footprint": "esp32-wroom-32ue.kicad_mod",
"model_3d": "esp32-wroom-32ue-hero.glb",
"model_3d_plain": "esp32-wroom-32ue-etched.glb",
"model_3d_step": "esp32-wroom-32ue-etched.step",
"model_3d_step_plain": "esp32-wroom-32ue.step",
"lbr": "esp32-wroom-32ue.lbr"
},
"distributor_links": {
"mouser": "909-ESP32-WROOM-32UE"
},
"distributor_check": {
"checked_at": "2026-10-28T17:37:35Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": "909-ESP32-WROOM-32UE",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground pin of the module."
},
{
"number": "2",
"name": "3V3",
"type": "power_in",
"description": "Module power supply input; VDD33 recommended operating range is 3.0 V (min) to 3.3 V (typ) to 3.6 V (max), with at least 0.5 A supplied by the external source."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "High enables the chip and low shuts it down; the pin must not be left floating."
},
{
"number": "4",
"name": "SENSOR_VP",
"type": "input",
"description": "GPIO36, ADC1_CH0, RTC_GPIO0; analog-enabled input usable for ADC1 channel 0 measurements."
},
{
"number": "5",
"name": "SENSOR_VN",
"type": "input",
"description": "GPIO39, ADC1_CH3, RTC_GPIO3; analog-enabled input usable for ADC1 channel 3 measurements."
},
{
"number": "6",
"name": "IO34",
"type": "input",
"description": "GPIO34, ADC1_CH6, RTC_GPIO4; input-only analog-enabled GPIO."
},
{
"number": "7",
"name": "IO35",
"type": "input",
"description": "GPIO35, ADC1_CH7, RTC_GPIO5; input-only analog-enabled GPIO."
},
{
"number": "8",
"name": "IO32",
"type": "bidirectional",
"description": "GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9."
},
{
"number": "9",
"name": "IO33",
"type": "bidirectional",
"description": "GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8."
},
{
"number": "10",
"name": "IO25",
"type": "bidirectional",
"description": "GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0; DAC channel 1 output."
},
{
"number": "11",
"name": "IO26",
"type": "bidirectional",
"description": "GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1; DAC channel 2 output."
},
{
"number": "12",
"name": "IO27",
"type": "bidirectional",
"description": "GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV."
},
{
"number": "13",
"name": "IO14",
"type": "bidirectional",
"description": "GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2."
},
{
"number": "14",
"name": "IO12",
"type": "bidirectional",
"description": "GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3; must 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, EMAC_RX_ER."
},
{
"number": "17",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "18",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "19",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "20",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "21",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "22",
"name": "NC",
"type": "unconnected",
"description": "Not led out; the chip's GPIO6-GPIO11 pins that connect to the in-package SPI flash are not exposed on the module."
},
{
"number": "23",
"name": "IO15",
"type": "bidirectional",
"description": "GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3; strapping pin for U0TXD printing control, default pull-up."
},
{
"number": "24",
"name": "IO2",
"type": "bidirectional",
"description": "GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0; strapping pin for chip boot mode, default pull-down."
},
{
"number": "25",
"name": "IO0",
"type": "bidirectional",
"description": "GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK; strapping pin for chip boot mode, default pull-up."
},
{
"number": "26",
"name": "IO4",
"type": "bidirectional",
"description": "GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER."
},
{
"number": "27",
"name": "IO16",
"type": "bidirectional",
"description": "GPIO16, HS1_DATA4, U2RXD, EMAC_CLK_OUT; in variants with embedded QSPI PSRAM (ESP32-D0WDR2-V3) it is connected to the PSRAM and cannot be used for other functions."
},
{
"number": "28",
"name": "IO17",
"type": "bidirectional",
"description": "GPIO17, HS1_DATA5, U2TXD, EMAC_CLK_OUT_180."
},
{
"number": "29",
"name": "IO5",
"type": "bidirectional",
"description": "GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK; strapping pin for SDIO slave timing, default pull-up."
},
{
"number": "30",
"name": "IO18",
"type": "bidirectional",
"description": "GPIO18, VSPICLK, HS1_DATA7."
},
{
"number": "31",
"name": "IO19",
"type": "bidirectional",
"description": "GPIO19, VSPIQ, U0CTS, EMAC_TXD0."
},
{
"number": "32",
"name": "NC",
"type": "unconnected",
"description": "Listed as NC in Table 3 with no function or note given."
},
{
"number": "33",
"name": "IO21",
"type": "bidirectional",
"description": "GPIO21, VSPIHD, EMAC_TX_EN."
},
{
"number": "34",
"name": "RXD0",
"type": "bidirectional",
"description": "GPIO3, U0RXD, CLK_OUT2; UART0 receive, used for firmware download and log output."
},
{
"number": "35",
"name": "TXD0",
"type": "bidirectional",
"description": "GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2; UART0 transmit, used for firmware download and log output."
},
{
"number": "36",
"name": "IO22",
"type": "bidirectional",
"description": "GPIO22, VSPIWP, U0RTS, EMAC_TXD1."
},
{
"number": "37",
"name": "IO23",
"type": "bidirectional",
"description": "GPIO23, VSPID, HS1_STROBE."
},
{
"number": "38",
"name": "GND",
"type": "power_in",
"description": "Ground pin of the module."
},
{
"number": "39",
"name": "GND",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Exposed ground pad (labelled P_GND 39 in Figure 9 and shown as GND pad in Figure 3) is not part of t; Pins are marked NC in Table 3; they are listed as unconnected and no function is given for pin 32.; IO16 is reserved for embedded PSRAM only in module variants that embed ESP32-D0WDR2-V3; the datashee",
"exposed pad 39 added from the footprint"
],
"pages_sent": 28,
"cost_usd": 0.1284,
"at": "2026-10-28T17:39:03"
},
"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-32ue.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18,
19.2,
3.2
],
"zmin_mm": -0.001,
"centre_offset_mm": 0.62,
"footprint_binding": "identity",
"sha256": "4f0681ab39fcde4dfff9c97ff1ecc787e88c8ee3503e3a38807fcefbe9fa559a",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "esp32-wroom-32ue-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18,
19.2,
3.2
],
"zmin_mm": -0.001,
"centre_offset_mm": 0.62,
"footprint_binding": "identity",
"sha256": "1ceefea20b0f5194c44fa5136de77b7cc181a44836bd1d353ff2bec716aebc84",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Espressif Systems",
"Package": "38-SMD Module",
"Category": "RF and Wireless",
"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": 85,
"conditions": "85 °C version",
"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": "Low-level input voltage",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "3.3 V, 25 °C",
"source_page": 28,
"source": "datasheet"
},
{
"name": "High-level input current",
"symbol": "IIH",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "3.3 V, 25 °C",
"source_page": 28,
"source": "datasheet"
},
{
"name": "Low-level input current",
"symbol": "IIL",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "3.3 V, 25 °C",
"source_page": 28,
"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": "3.3 V, 25 °C",
"source_page": 29,
"source": "datasheet"
},
{
"name": "Power supply voltage (1.8 V)",
"symbol": "VCC",
"kind": "electrical",
"unit": "V",
"min": 1.65,
"typ": 1.8,
"max": 2,
"conditions": "",
"source_page": 30,
"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": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Maximum clock frequency (flash)",
"symbol": "FC",
"kind": "electrical",
"unit": "MHz",
"min": 80,
"typ": null,
"max": null,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Program/erase cycles",
"symbol": "",
"kind": "electrical",
"unit": "cycles",
"min": 100000,
"typ": null,
"max": null,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Data retention time",
"symbol": "TRET",
"kind": "electrical",
"unit": "years",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Page program time",
"symbol": "TPP",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 0.8,
"max": 5,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Sector erase time (4 KB)",
"symbol": "TSE",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 70,
"max": 500,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Block erase time (32 KB)",
"symbol": "TBE1",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 0.2,
"max": 2,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Block erase time (64 KB)",
"symbol": "TBE2",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 0.3,
"max": 3,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Chip erase time (16 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 7,
"max": 20,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Chip erase time (32 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 20,
"max": 60,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Chip erase time (64 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 25,
"max": 100,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Chip erase time (128 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 60,
"max": 200,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Chip erase time (256 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 70,
"max": 300,
"conditions": "",
"source_page": 30,
"source": "datasheet"
},
{
"name": "Differential nonlinearity (ADC)",
"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"
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