component
ESP32-C3-WROOM-02-N4
Public Made by Adomby adom
Espressif Systems WiFi Modules, VFQFN-32-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509
{
"schema_version": 1,
"type": "component",
"slug": "esp32-c3-wroom-02-n4",
"title": "ESP32-C3-WROOM-02-N4",
"brief": "Espressif Systems WiFi Modules, VFQFN-32-EP. 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-c3-wroom-02-n4",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ESP32-C3-WROOM-02-N4",
"manufacturer": "Espressif Systems",
"package": "VFQFN-32-EP",
"pin_count": 19,
"category": "IoT/Communication Modules",
"subcategory": "WiFi Modules",
"datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_en.pdf",
"parts": {
"symbol": "esp32-c3-wroom-02-n4.kicad_sym",
"footprint": "esp32-c3-wroom-02-n4.kicad_mod",
"model_3d": "esp32-c3-wroom-02-n4-etched.glb",
"model_3d_plain": "esp32-c3-wroom-02-n4.glb",
"model_3d_step": "esp32-c3-wroom-02-n4-etched.step",
"model_3d_step_plain": "esp32-c3-wroom-02-n4.step",
"lbr": "esp32-c3-wroom-02-n4.lbr"
},
"distributor_links": {
"lcsc": "C2934560",
"digikey": "1965-ESP32-C3-WROOM-02-N4TR-ND",
"mouser": "356-ESP32C3WROOM02N4"
},
"distributor_check": {
"checked_at": "2026-10-28T17:47:24Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1965-ESP32-C3-WROOM-02-N4TR-ND",
"status": "found"
},
"mouser": {
"pn": "356-ESP32C3WROOM02N4",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "3V3",
"type": "power_in",
"description": "Module power supply, 3.0 to 3.6 V (3.3 V typ) with at least 0.5 A delivered by the external supply."
},
{
"number": "2",
"name": "EN",
"type": "input",
"description": "Chip enable: high turns the chip on, low powers it off; must not be left floating."
},
{
"number": "3",
"name": "IO4",
"type": "bidirectional",
"description": "GPIO4 with ADC1_CH4, FSPIHD and MTMS functions."
},
{
"number": "4",
"name": "IO5",
"type": "bidirectional",
"description": "GPIO5 with ADC2_CH0, FSPIWP and MTDI functions."
},
{
"number": "5",
"name": "IO6",
"type": "bidirectional",
"description": "GPIO6 with FSPICLK and MTCK functions."
},
{
"number": "6",
"name": "IO7",
"type": "bidirectional",
"description": "GPIO7 with FSPID and MTDO functions."
},
{
"number": "7",
"name": "IO8",
"type": "bidirectional",
"description": "GPIO8, a strapping pin (floating by default) that also controls ROM message printing."
},
{
"number": "8",
"name": "IO9",
"type": "bidirectional",
"description": "GPIO9, a strapping pin with weak pull-up by default (SPI boot); low selects Joint Download Boot mode."
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "10",
"name": "IO10",
"type": "bidirectional",
"description": "GPIO10 with FSPICS0 function."
},
{
"number": "11",
"name": "RXD",
"type": "bidirectional",
"description": "GPIO20 / U0RXD, UART0 receive used for firmware download and log output."
},
{
"number": "12",
"name": "TXD",
"type": "bidirectional",
"description": "GPIO21 / U0TXD, UART0 transmit used for firmware download and log output."
},
{
"number": "13",
"name": "IO18",
"type": "bidirectional",
"description": "GPIO18 with USB_D- function for the USB Serial/JTAG controller."
},
{
"number": "14",
"name": "IO19",
"type": "bidirectional",
"description": "GPIO19 with USB_D+ function for the USB Serial/JTAG controller."
},
{
"number": "15",
"name": "IO3",
"type": "bidirectional",
"description": "GPIO3 with ADC1_CH3 function."
},
{
"number": "16",
"name": "IO2",
"type": "bidirectional",
"description": "GPIO2, a strapping pin (floating by default, recommended pulled up) with ADC1_CH2 and FSPIQ functions."
},
{
"number": "17",
"name": "IO1",
"type": "bidirectional",
"description": "GPIO1 with ADC1_CH1 and XTAL_32K_N functions."
},
{
"number": "18",
"name": "IO0",
"type": "bidirectional",
"description": "GPIO0 with ADC1_CH0 and XTAL_32K_P functions."
},
{
"number": "19",
"name": "GND",
"type": "power_in",
"description": "Ground exposed pad (EPAD); soldering to board ground is optional but improves thermal performance."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Package hint VFQFN-32-EP does not match this MPN. ESP32-C3-WROOM-02-N4 is a 19-pad module (18 edge p; The pin table is in the text, so the page images were not read. The pin numbers and the GND on pin 1",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 47,
"cost_usd": 0.2659,
"at": "2026-10-28T17:46:05"
},
"datasheet": {
"url": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_en.pdf",
"pages": 47,
"sha256": "2375b1be75ebbfcf",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 19,
"described": 19,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "esp32-c3-wroom-02-n4.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18,
20,
3.199
],
"zmin_mm": 0,
"centre_offset_mm": 3.1,
"footprint_binding": "identity",
"sha256": "963d8b40a70f5430f293099a929cedb0182176499092cdffbe9195264163a91d",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "esp32-c3-wroom-02-n4-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
18,
20,
3.199
],
"zmin_mm": 0,
"centre_offset_mm": 3.1,
"footprint_binding": "identity",
"sha256": "06a84dae8b62aeb7fca6c4777e1ce465da96d54d817e79150175f7e798344e8d",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Espressif Systems",
"Package": "VFQFN-32-EP",
"Category": "IoT/Communication Modules",
"Pins": "19"
},
"appearance": {
"contacts": {
"quote": "Solder: Sn-Ag-Cu (SAC305) lead-free solder Temperature (°C)",
"page": 40,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "2375b1be75ebbfcffa050e6a26c3ee7957bc7171b319066081a491d1b2e21161"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "2375b1be75ebbfcffa050e6a26c3ee7957bc7171b319066081a491d1b2e21161",
"rows": [
{
"name": "Power supply voltage",
"symbol": "VDD33",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "TSTORE",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 105,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Power supply voltage",
"symbol": "VDD33",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 3.3,
"max": 3.6,
"conditions": "",
"source_page": 22,
"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": 22,
"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": 22,
"source": "datasheet"
},
{
"name": "High-level input current",
"symbol": "IIH",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Low-level input current",
"symbol": "IIL",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 22,
"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": 24,
"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": 24,
"source": "datasheet"
},
{
"name": "Maximum clock frequency",
"symbol": "FC",
"kind": "electrical",
"unit": "MHz",
"min": 80,
"typ": null,
"max": null,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Program/erase cycles",
"symbol": "",
"kind": "electrical",
"unit": "cycles",
"min": 100000,
"typ": null,
"max": null,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Data retention time",
"symbol": "TRET",
"kind": "electrical",
"unit": "years",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Page program time",
"symbol": "TPP",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 0.8,
"max": 5,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Sector erase time (4 KB)",
"symbol": "TSE",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 70,
"max": 500,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Block erase time (32 KB)",
"symbol": "TBE1",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 0.2,
"max": 2,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Block erase time (64 KB)",
"symbol": "TBE2",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 0.3,
"max": 3,
"conditions": "",
"source_page": 24,
"source": "datasheet"
},
{
"name": "Chip erase time (32 Mb)",
"symbol": "TCE",
"kind": "timing",
"unit": "s",
"min": null,
"typ": 20,
"max": 60,
"conditions": "",
"source_page": 24,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"esp32-c3-wroom-02-n4"
],
"discovery_pitch": "ESP32-C3-WROOM-02-N4 (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-c3-wroom-02-n4.kicad_sym",
"esp32-c3-wroom-02-n4.kicad_mod",
"esp32-c3-wroom-02-n4.glb",
"esp32-c3-wroom-02-n4.step",
"esp32-c3-wroom-02-n4.lbr",
"docs/hero.png",
"docs/esp32-c3-wroom-02-n4-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html"
],
"visibility": {
"public": true
}
}