component
ESP32-S3-WROOM-1U-N4R2
Public Made by Adomby adom
Espressif Systems WiFi Modules, ESP32-S3-WROOM-1U. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "esp32-s3-wroom-1u-n4r2",
"version": "0.1.0",
"type": "component",
"description": "Espressif Systems WiFi Modules, ESP32-S3-WROOM-1U. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"iot-communication modules",
"esp32-s3-wroom-1u-n4r2",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"esp32-s3-wroom-1u-n4r2.kicad_sym",
"esp32-s3-wroom-1u-n4r2.kicad_mod",
"esp32-s3-wroom-1u-n4r2.glb",
"esp32-s3-wroom-1u-n4r2.step",
"esp32-s3-wroom-1u-n4r2.lbr",
"docs/hero.png",
"docs/esp32-s3-wroom-1u-n4r2-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"esp32-s3-wroom-1u-n4r2-hero.glb",
"esp32-s3-wroom-1u-n4r2-hero.overlay.json",
"esp32-s3-wroom-1u-n4r2-etched.glb"
],
"component": {
"mpn": "ESP32-S3-WROOM-1U-N4R2",
"manufacturer": "Espressif Systems",
"package": "ESP32-S3-WROOM-1U",
"pin_count": 41,
"category": "IoT/Communication Modules",
"subcategory": "WiFi Modules",
"datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
"parts": {
"symbol": "esp32-s3-wroom-1u-n4r2.kicad_sym",
"footprint": "esp32-s3-wroom-1u-n4r2.kicad_mod",
"model_3d": "esp32-s3-wroom-1u-n4r2-hero.glb",
"model_3d_plain": "esp32-s3-wroom-1u-n4r2-etched.glb",
"model_3d_step": "esp32-s3-wroom-1u-n4r2-etched.step",
"model_3d_step_plain": "esp32-s3-wroom-1u-n4r2.step",
"lbr": "esp32-s3-wroom-1u-n4r2.lbr"
},
"distributor_links": {
"lcsc": "C3013942",
"digikey": "1965-ESP32-S3-WROOM-1U-N4R2TR-ND",
"mouser": "356-ESP32S3WRM1UN4R2"
},
"distributor_check": {
"checked_at": "2026-10-28T17:54:40Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1965-ESP32-S3-WROOM-1U-N4R2TR-ND",
"status": "found"
},
"mouser": {
"pn": "356-ESP32S3WRM1UN4R2",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground connection for the module."
},
{
"number": "2",
"name": "3V3",
"type": "power_in",
"description": "Module power supply input; recommended VDD33 is 3.0 V to 3.6 V (3.3 V typical) with at least 0.5 A delivered externally."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "Chip enable: high enables the chip and low powers it off, and it must not be left floating."
},
{
"number": "4",
"name": "IO4",
"type": "bidirectional",
"description": "GPIO4 with RTC_GPIO4, TOUCH4 and ADC1_CH3 functions."
},
{
"number": "5",
"name": "IO5",
"type": "bidirectional",
"description": "GPIO5 with RTC_GPIO5, TOUCH5 and ADC1_CH4 functions."
},
{
"number": "6",
"name": "IO6",
"type": "bidirectional",
"description": "GPIO6 with RTC_GPIO6, TOUCH6 and ADC1_CH5 functions."
},
{
"number": "7",
"name": "IO7",
"type": "bidirectional",
"description": "GPIO7 with RTC_GPIO7, TOUCH7 and ADC1_CH6 functions."
},
{
"number": "8",
"name": "IO15",
"type": "bidirectional",
"description": "GPIO15 with RTC_GPIO15, U0RTS, ADC2_CH4 and XTAL_32K_P functions."
},
{
"number": "9",
"name": "IO16",
"type": "bidirectional",
"description": "GPIO16 with RTC_GPIO16, U0CTS, ADC2_CH5 and XTAL_32K_N functions."
},
{
"number": "10",
"name": "IO17",
"type": "bidirectional",
"description": "GPIO17 with RTC_GPIO17, U1TXD and ADC2_CH6 functions."
},
{
"number": "11",
"name": "IO18",
"type": "bidirectional",
"description": "GPIO18 with RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3 functions."
},
{
"number": "12",
"name": "IO8",
"type": "bidirectional",
"description": "GPIO8 with RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1 functions."
},
{
"number": "13",
"name": "IO19",
"type": "bidirectional",
"description": "GPIO19 with RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB_D- functions."
},
{
"number": "14",
"name": "IO20",
"type": "bidirectional",
"description": "GPIO20 with RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB_D+ functions."
},
{
"number": "15",
"name": "IO3",
"type": "bidirectional",
"description": "GPIO3 with RTC_GPIO3, TOUCH3 and ADC1_CH2 functions; it is a strapping pin for the JTAG signal source and is floating by default."
},
{
"number": "16",
"name": "IO46",
"type": "bidirectional",
"description": "GPIO46 general-purpose I/O; it is a strapping pin for chip boot mode and ROM message printing with a weak pull-down by default."
},
{
"number": "17",
"name": "IO9",
"type": "bidirectional",
"description": "GPIO9 with RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD functions."
},
{
"number": "18",
"name": "IO10",
"type": "bidirectional",
"description": "GPIO10 with RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0 functions."
},
{
"number": "19",
"name": "IO11",
"type": "bidirectional",
"description": "GPIO11 with RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID functions."
},
{
"number": "20",
"name": "IO12",
"type": "bidirectional",
"description": "GPIO12 with RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK functions."
},
{
"number": "21",
"name": "IO13",
"type": "bidirectional",
"description": "GPIO13 with RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ functions."
},
{
"number": "22",
"name": "IO14",
"type": "bidirectional",
"description": "GPIO14 with RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP functions."
},
{
"number": "23",
"name": "IO21",
"type": "bidirectional",
"description": "GPIO21 with RTC_GPIO21 function."
},
{
"number": "24",
"name": "IO47",
"type": "bidirectional",
"description": "GPIO47 with SPICLK_P_DIFF and SUBSPICLK_P_DIFF functions; on modules embedded with ESP32-S3R16V it operates at 1.8 V."
},
{
"number": "25",
"name": "IO48",
"type": "bidirectional",
"description": "GPIO48 with SPICLK_N_DIFF and SUBSPICLK_N_DIFF functions; on modules embedded with ESP32-S3R16V it operates at 1.8 V."
},
{
"number": "26",
"name": "IO45",
"type": "bidirectional",
"description": "GPIO45 general-purpose I/O; it is a strapping pin that sets VDD_SPI voltage with a weak pull-down by default."
},
{
"number": "27",
"name": "IO0",
"type": "bidirectional",
"description": "RTC_GPIO0 and GPIO0; it is a strapping pin for chip boot mode with a weak pull-up by default."
},
{
"number": "28",
"name": "IO35",
"type": "bidirectional",
"description": "SPIIO6, GPIO35, FSPID and SUBSPID functions; default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) it is not available for other uses."
},
{
"number": "29",
"name": "IO36",
"type": "bidirectional",
"description": "SPIIO7, GPIO36, FSPICLK and SUBSPICLK functions; default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) it is not available for other uses."
},
{
"number": "30",
"name": "IO37",
"type": "bidirectional",
"description": "SPIDQS, GPIO37, FSPIQ and SUBSPIQ functions; default function is set by eFuse, and on modules with Octal SPI PSRAM (ESP32-S3R8 or ESP32-S3R16V) it is not available for other uses."
},
{
"number": "31",
"name": "IO38",
"type": "bidirectional",
"description": "GPIO38, FSPIWP and SUBSPIWP functions."
},
{
"number": "32",
"name": "IO39",
"type": "bidirectional",
"description": "MTCK, GPIO39, CLK_OUT3 and SUBSPICS1 functions."
},
{
"number": "33",
"name": "IO40",
"type": "bidirectional",
"description": "MTDO, GPIO40 and CLK_OUT2 functions."
},
{
"number": "34",
"name": "IO41",
"type": "bidirectional",
"description": "MTDI, GPIO41 and CLK_OUT1 functions."
},
{
"number": "35",
"name": "IO42",
"type": "bidirectional",
"description": "MTMS and GPIO42 functions."
},
{
"number": "36",
"name": "RXD0",
"type": "bidirectional",
"description": "U0RXD (UART0 receive), GPIO44 and CLK_OUT2 functions."
},
{
"number": "37",
"name": "TXD0",
"type": "bidirectional",
"description": "U0TXD (UART0 transmit), GPIO43 and CLK_OUT1 functions."
},
{
"number": "38",
"name": "IO2",
"type": "bidirectional",
"description": "RTC_GPIO2, GPIO2, TOUCH2 and ADC1_CH1 functions."
},
{
"number": "39",
"name": "IO1",
"type": "bidirectional",
"description": "RTC_GPIO1, GPIO1, TOUCH1 and ADC1_CH0 functions."
},
{
"number": "40",
"name": "GND",
"type": "power_in",
"description": "Ground connection for the module."
},
{
"number": "41",
"name": "EPAD",
"type": "power_in",
"description": "Exposed thermal pad connected to GND; soldering it to the 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: Package mismatch: the hint 'SMD, 19.2x18mm' matches the ESP32-S3-WROOM-1U outline (18 x 19.2 mm, Fig; The variant N4R2 is not named anywhere in the supplied text (the series comparison Table 1-1 is not ; Type mapping choices: the datasheet's 'I/O/T' type was mapped to KiCad 'bidirectional' for all GPIOs"
],
"pages_sent": 28,
"cost_usd": 0.0954,
"at": "2026-10-28T17:53:48"
},
"datasheet": {
"url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
"pages": 53,
"sha256": "27d71971da07c280",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 41,
"described": 41,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "esp32-s3-wroom-1u-n4r2.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18.0,
19.2,
3.2
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.62,
"footprint_binding": "identity",
"sha256": "f96c8ebb66801b9444411a4fc8107f356b86a263efabfba1d3f7100ffdab068f",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "esp32-s3-wroom-1u-n4r2-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18.0,
19.2,
3.2
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.62,
"footprint_binding": "identity",
"sha256": "2cc08b609344fd1d63a86b2224983c06489dd515c96662d55a15a91f960b14ae",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}