component
ESP32-S3-WROOM-1U-N16R2
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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{
"schema_version": 1,
"type": "component",
"slug": "esp32-s3-wroom-1u-n16r2",
"title": "ESP32-S3-WROOM-1U-N16R2",
"brief": "Espressif Systems WiFi Modules, ESP32-S3-WROOM-1U. 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-s3-wroom-1u-n16r2",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ESP32-S3-WROOM-1U-N16R2",
"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-n16r2.kicad_sym",
"footprint": "esp32-s3-wroom-1u-n16r2.kicad_mod",
"model_3d": "esp32-s3-wroom-1u-n16r2-hero.glb",
"model_3d_plain": "esp32-s3-wroom-1u-n16r2-etched.glb",
"model_3d_step": "esp32-s3-wroom-1u-n16r2-etched.step",
"model_3d_step_plain": "esp32-s3-wroom-1u-n16r2.step",
"lbr": "esp32-s3-wroom-1u-n16r2.lbr"
},
"distributor_links": {
"lcsc": "C3013945",
"digikey": "1965-ESP32-S3-WROOM-1U-N16R2TR-ND",
"mouser": "356-ESP32S3WM1UN16R2"
},
"distributor_check": {
"checked_at": "2026-10-28T17:35:34Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1965-ESP32-S3-WROOM-1U-N16R2TR-ND",
"status": "found"
},
"mouser": {
"pn": "356-ESP32S3WM1UN16R2",
"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 pin; Table 3-1 gives no limit, and Table 6-2 lists the VDD33 recommended supply at 3.0 V min, 3.3 V typ, 3.6 V max."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "Chip enable: High turns the chip on, Low turns it off; do not leave this pin floating."
},
{
"number": "4",
"name": "IO4",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO4, TOUCH4 and ADC1_CH3 functions."
},
{
"number": "5",
"name": "IO5",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO5, TOUCH5 and ADC1_CH4 functions."
},
{
"number": "6",
"name": "IO6",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO6, TOUCH6 and ADC1_CH5 functions."
},
{
"number": "7",
"name": "IO7",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO7, TOUCH7 and ADC1_CH6 functions."
},
{
"number": "8",
"name": "IO15",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO15, UART0 RTS (U0RTS), ADC2_CH4 and XTAL_32K_P functions."
},
{
"number": "9",
"name": "IO16",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO16, UART0 CTS (U0CTS), ADC2_CH5 and XTAL_32K_N functions."
},
{
"number": "10",
"name": "IO17",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO17, U1TXD and ADC2_CH6 functions."
},
{
"number": "11",
"name": "IO18",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3 functions."
},
{
"number": "12",
"name": "IO8",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1 functions."
},
{
"number": "13",
"name": "IO19",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB D- functions."
},
{
"number": "14",
"name": "IO20",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB D+ functions."
},
{
"number": "15",
"name": "IO3",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO3, TOUCH3 and ADC1_CH2 functions; GPIO3 is a JTAG signal-source strapping pin (Section 4)."
},
{
"number": "16",
"name": "IO46",
"type": "bidirectional",
"description": "General-purpose I/O (GPIO46); also a boot strapping pin for chip boot mode and ROM message printing (Section 4)."
},
{
"number": "17",
"name": "IO9",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD functions."
},
{
"number": "18",
"name": "IO10",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0 functions."
},
{
"number": "19",
"name": "IO11",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID functions."
},
{
"number": "20",
"name": "IO12",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK functions."
},
{
"number": "21",
"name": "IO13",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ functions."
},
{
"number": "22",
"name": "IO14",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP functions."
},
{
"number": "23",
"name": "IO21",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO21 function."
},
{
"number": "24",
"name": "IO47",
"type": "bidirectional",
"description": "General-purpose I/O (GPIO47) also carrying SPICLK_P_DIFF and SUBSPICLK_P_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V (Table 3-1 note c)."
},
{
"number": "25",
"name": "IO48",
"type": "bidirectional",
"description": "General-purpose I/O (GPIO48) also carrying SPICLK_N_DIFF and SUBSPICLK_N_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V (Table 3-1 note c)."
},
{
"number": "26",
"name": "IO45",
"type": "bidirectional",
"description": "General-purpose I/O (GPIO45); also a VDD_SPI voltage strapping pin (Section 4)."
},
{
"number": "27",
"name": "IO0",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO0 function; also a boot-mode strapping pin with a weak pull-up at reset (Section 4)."
},
{
"number": "28",
"name": "IO35",
"type": "bidirectional",
"description": "General-purpose I/O with SPIIO6, FSPID and SUBSPID functions; default function is set by eFuse bit."
},
{
"number": "29",
"name": "IO36",
"type": "bidirectional",
"description": "General-purpose I/O with SPIIO7, FSPICLK and SUBSPICLK functions; default function is set by eFuse bit."
},
{
"number": "30",
"name": "IO37",
"type": "bidirectional",
"description": "General-purpose I/O with SPIDQS, FSPIQ and SUBSPIQ functions; default function is set by eFuse bit."
},
{
"number": "31",
"name": "IO38",
"type": "bidirectional",
"description": "General-purpose I/O with FSPIWP and SUBSPIWP functions."
},
{
"number": "32",
"name": "IO39",
"type": "bidirectional",
"description": "General-purpose I/O with MTCK (JTAG clock), CLK_OUT3 and SUBSPICS1 functions."
},
{
"number": "33",
"name": "IO40",
"type": "bidirectional",
"description": "General-purpose I/O with MTDO (JTAG data out) and CLK_OUT2 functions."
},
{
"number": "34",
"name": "IO41",
"type": "bidirectional",
"description": "General-purpose I/O with MTDI (JTAG data in) and CLK_OUT1 functions."
},
{
"number": "35",
"name": "IO42",
"type": "bidirectional",
"description": "General-purpose I/O with MTMS (JTAG mode select) function."
},
{
"number": "36",
"name": "RXD0",
"type": "bidirectional",
"description": "UART0 receive (U0RXD) pin, also usable as GPIO44 and CLK_OUT2."
},
{
"number": "37",
"name": "TXD0",
"type": "bidirectional",
"description": "UART0 transmit (U0TXD) pin, also usable as GPIO43 and CLK_OUT1."
},
{
"number": "38",
"name": "IO2",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_GPIO2, TOUCH2 and ADC1_CH1 functions."
},
{
"number": "39",
"name": "IO1",
"type": "bidirectional",
"description": "General-purpose I/O with RTC_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 ground pad; soldering it to the base-board ground is not mandatory but improves thermal performance, and too much solder paste can degrade adhesion of the other pins."
}
],
"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: Variant match: the MPN ESP32-S3-WROOM-1U-N16R2 is not named in the supplied text (Table 1-2 series c; Pin 1 position and pin order are taken from the Figure 3-1 layout and Table 3-1; the pin-diagram not; Default-function bold formatting in Table 3-1 was lost in text extraction, so the default function o"
],
"pages_sent": 28,
"cost_usd": 0.1329,
"at": "2026-10-28T17:34:12"
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"pages": 53,
"sha256": "27d71971da07c280",
"source_tier": "mfr"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 41,
"described": 41,
"cites_pages": true,
"refuses_to_fabricate": true
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"centre_offset_mm": 0.62,
"footprint_binding": "identity",
"sha256": "42144ec4502f75fab9f4ae5e5089b2ef54a3fc0e88ff50a76d3b045c9ea8011b",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
"file": "esp32-s3-wroom-1u-n16r2-etched.step",
"role": "eda",
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"units": "mm",
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"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "2cc430f2f725bd9b080ae95bc2a8b224732d8bfd4f9ed9817a59aab1874ecd67",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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"metadata": {
"specs": {
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"Package": "ESP32-S3-WROOM-1U",
"Category": "IoT/Communication Modules",
"Pins": "41"
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"appearance": {
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"quote": "Solder: Sn-Ag-Cu (SAC305) lead-free solder Temperature (°C)",
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"doc": "ds.pdf",
"plating": "tin"
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"datasheet_sha256": "27d71971da07c280c6068d08c74720d1a25b8f20cf8494dc1765bdd28d40d435"
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"characteristics": {
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"source": "datasheet",
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"rows": [
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"name": "Power supply voltage (absolute maximum)",
"symbol": "VDD33",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 27,
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{
"name": "Storage temperature",
"symbol": "TSTORE",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
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"max": 105,
"conditions": "",
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{
"name": "Power supply voltage",
"symbol": "VDD33",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 3.3,
"max": 3.6,
"conditions": "",
"source_page": 27,
"source": "datasheet"
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{
"name": "Current delivered by external power supply",
"symbol": "IVDD",
"kind": "recommended_operating",
"unit": "A",
"min": 0.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 27,
"source": "datasheet"
},
{
"name": "Operating ambient temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "85 °C version",
"source_page": 27,
"source": "datasheet"
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{
"name": "Low-level input voltage",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 27,
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{
"name": "High-level input current",
"symbol": "IIH",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 27,
"source": "datasheet"
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{
"name": "Low-level input current",
"symbol": "IIL",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 27,
"source": "datasheet"
},
{
"name": "Chip reset voltage",
"symbol": "VIL_nRST",
"kind": "electrical",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "EN voltage is within the specified range",
"source_page": 28,
"source": "datasheet"
},
{
"name": "PSRAM power supply voltage (3.3 V)",
"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": 31,
"source": "datasheet"
},
{
"name": "PSRAM maximum clock frequency",
"symbol": "FC",
"kind": "electrical",
"unit": "MHz",
"min": 80,
"typ": null,
"max": null,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "TX EVM limit, 802.11b 1 Mbps",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": null,
"max": -10,
"conditions": "802.11b, 1 Mbps, @20.5 dBm",
"source_page": 32,
"source": "datasheet"
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{
"name": "TX EVM limit, 802.11b 11 Mbps",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": null,
"max": -10,
"conditions": "802.11b, 11 Mbps, @20.5 dBm",
"source_page": 32,
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{
"name": "TX EVM limit, 802.11g 6 Mbps",
"symbol": "",
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"min": null,
"typ": null,
"max": -5,
"conditions": "802.11g, 6 Mbps, @20 dBm",
"source_page": 32,
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{
"name": "TX EVM limit, 802.11g 54 Mbps",
"symbol": "",
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"conditions": "802.11g, 54 Mbps, @18 dBm",
"source_page": 32,
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{
"name": "TX EVM limit, 802.11n HT20 MCS 0",
"symbol": "",
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{
"name": "TX EVM limit, 802.11n HT20 MCS 7",
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"name": "TX EVM limit, 802.11n HT40 MCS 0",
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{
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"conditions": "802.11n, HT40, MCS 7, @17 dBm",
"source_page": 33,
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{
"name": "Wi-Fi center frequency range of operating channel",
"symbol": "",
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"unit": "MHz",
"min": 2412,
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{
"name": "Bluetooth LE center frequency range of operating channel",
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"name": "Bluetooth LE RF transmit power range",
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