component
ESP32-WROOM-32E-N4
Public Made by Adomby adom
Espressif Systems WiFi Modules, ESP32-WROOM-32E. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "esp32-wroom-32e-n4",
"version": "0.1.0",
"type": "component",
"description": "Espressif Systems WiFi Modules, ESP32-WROOM-32E. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"iot-communication modules",
"esp32-wroom-32e-n4",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"esp32-wroom-32e-n4.kicad_sym",
"esp32-wroom-32e-n4.kicad_mod",
"esp32-wroom-32e-n4.glb",
"esp32-wroom-32e-n4.step",
"esp32-wroom-32e-n4.lbr",
"docs/hero.png",
"docs/esp32-wroom-32e-n4-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html"
],
"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": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "esp32-wroom-32e-n4.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": "4bfba415b0d62dfb4d65738c131629e585c211a5da9ae9c370010e2dc1394b48",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "esp32-wroom-32e-n4-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": "2f6e6e6e6be3f0c030b1d38821bd8f89d32ac5667e4f6ac898f81becd9473d7e",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}