ESP32-S2-MINI-1U-N4

{
  "slug": "esp32-s2-mini-1u-n4",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems RF and Wireless, 65-SMD Module. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "esp32-s2-mini-1u-n4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-s2-mini-1u-n4.kicad_sym",
    "esp32-s2-mini-1u-n4.kicad_mod",
    "esp32-s2-mini-1u-n4.glb",
    "esp32-s2-mini-1u-n4.step",
    "esp32-s2-mini-1u-n4.lbr",
    "docs/hero.png",
    "docs/esp32-s2-mini-1u-n4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp32-s2-mini-1u-n4-hero.glb",
    "esp32-s2-mini-1u-n4-hero.overlay.json",
    "esp32-s2-mini-1u-n4-etched.glb"
  ],
  "component": {
    "mpn": "ESP32-S2-MINI-1U-N4",
    "manufacturer": "Espressif Systems",
    "package": "65-SMD Module",
    "pin_count": 65,
    "category": "RF and Wireless",
    "subcategory": "RF and Wireless",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-s2-mini-1u-n4.kicad_sym",
      "footprint": "esp32-s2-mini-1u-n4.kicad_mod",
      "model_3d": "esp32-s2-mini-1u-n4-hero.glb",
      "model_3d_plain": "esp32-s2-mini-1u-n4-etched.glb",
      "model_3d_step": "esp32-s2-mini-1u-n4-etched.step",
      "model_3d_step_plain": "esp32-s2-mini-1u-n4.step",
      "lbr": "esp32-s2-mini-1u-n4.lbr"
    },
    "distributor_links": {
      "digikey": "1965-ESP32-S2-MINI-1U-N4TR-ND",
      "mouser": "356-ESP32-S2-MINI-1U"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:49:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-S2-MINI-1U-N4TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32-S2-MINI-1U",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "3",
        "name": "3V3",
        "type": "power_in",
        "description": "Module power supply; the power supply voltage (VDD33) is 3.0 V minimum, 3.3 V typical and 3.6 V maximum."
      },
      {
        "number": "4",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 (also RTC_GPIO0); strapping pin for boot mode with GPIO46, with an internal pull-up that defaults to 1."
      },
      {
        "number": "5",
        "name": "IO1",
        "type": "bidirectional",
        "description": "GPIO1 (also RTC_GPIO1, TOUCH1, ADC1_CH0)."
      },
      {
        "number": "6",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2 (also RTC_GPIO2, TOUCH2, ADC1_CH1)."
      },
      {
        "number": "7",
        "name": "IO3",
        "type": "bidirectional",
        "description": "GPIO3 (also RTC_GPIO3, TOUCH3, ADC1_CH2)."
      },
      {
        "number": "8",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 (also RTC_GPIO4, TOUCH4, ADC1_CH3)."
      },
      {
        "number": "9",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 (also RTC_GPIO5, TOUCH5, ADC1_CH4)."
      },
      {
        "number": "10",
        "name": "IO6",
        "type": "bidirectional",
        "description": "GPIO6 (also RTC_GPIO6, TOUCH6, ADC1_CH5)."
      },
      {
        "number": "11",
        "name": "IO7",
        "type": "bidirectional",
        "description": "GPIO7 (also RTC_GPIO7, TOUCH7, ADC1_CH6)."
      },
      {
        "number": "12",
        "name": "IO8",
        "type": "bidirectional",
        "description": "GPIO8 (also RTC_GPIO8, TOUCH8, ADC1_CH7)."
      },
      {
        "number": "13",
        "name": "IO9",
        "type": "bidirectional",
        "description": "GPIO9 (also RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD)."
      },
      {
        "number": "14",
        "name": "IO10",
        "type": "bidirectional",
        "description": "GPIO10 (also RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4)."
      },
      {
        "number": "15",
        "name": "IO11",
        "type": "bidirectional",
        "description": "GPIO11 (also RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5)."
      },
      {
        "number": "16",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12 (also RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6)."
      },
      {
        "number": "17",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13 (also RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7)."
      },
      {
        "number": "18",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14 (also RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS)."
      },
      {
        "number": "19",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15 (also RTC_GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P)."
      },
      {
        "number": "20",
        "name": "IO16",
        "type": "bidirectional",
        "description": "GPIO16 (also RTC_GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N)."
      },
      {
        "number": "21",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17 (also RTC_GPIO17, U1TXD, ADC2_CH6, DAC_1); DAC_1 is also the alternate ROM message output when EFUSE_UART_PRINT_CONTROL is 1."
      },
      {
        "number": "22",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 (also RTC_GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3)."
      },
      {
        "number": "23",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 (also RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-)."
      },
      {
        "number": "24",
        "name": "IO20",
        "type": "bidirectional",
        "description": "GPIO20 (also RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+)."
      },
      {
        "number": "25",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21 (also RTC_GPIO21)."
      },
      {
        "number": "26",
        "name": "IO26",
        "type": "bidirectional",
        "description": "GPIO26 (also SPICS1); used by the embedded PSRAM on the N4R2 variants and cannot be used for other purposes there, and the N4 variant has no PSRAM."
      },
      {
        "number": "27",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "28",
        "name": "IO33",
        "type": "bidirectional",
        "description": "GPIO33 (also SPIIO4, FSPIHD)."
      },
      {
        "number": "29",
        "name": "IO34",
        "type": "bidirectional",
        "description": "GPIO34 (also SPIIO5, FSPICS0)."
      },
      {
        "number": "30",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "31",
        "name": "IO35",
        "type": "bidirectional",
        "description": "GPIO35 (also SPIIO6, FSPID)."
      },
      {
        "number": "32",
        "name": "IO36",
        "type": "bidirectional",
        "description": "GPIO36 (also SPIIO7, FSPICLK)."
      },
      {
        "number": "33",
        "name": "IO37",
        "type": "bidirectional",
        "description": "GPIO37 (also SPIDQS, FSPIQ)."
      },
      {
        "number": "34",
        "name": "IO38",
        "type": "bidirectional",
        "description": "GPIO38 (also FSPIWP)."
      },
      {
        "number": "35",
        "name": "IO39",
        "type": "bidirectional",
        "description": "GPIO39 (also MTCK, CLK_OUT3)."
      },
      {
        "number": "36",
        "name": "IO40",
        "type": "bidirectional",
        "description": "GPIO40 (also MTDO, CLK_OUT2)."
      },
      {
        "number": "37",
        "name": "IO41",
        "type": "bidirectional",
        "description": "GPIO41 (also MTDI, CLK_OUT1)."
      },
      {
        "number": "38",
        "name": "IO42",
        "type": "bidirectional",
        "description": "GPIO42 (also MTMS)."
      },
      {
        "number": "39",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "UART0 transmit (U0TXD, also GPIO43, CLK_OUT1); default output for ROM boot messages."
      },
      {
        "number": "40",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "UART0 receive (U0RXD, also GPIO44, CLK_OUT2)."
      },
      {
        "number": "41",
        "name": "IO45",
        "type": "bidirectional",
        "description": "GPIO45; strapping pin controlling VDD_SPI voltage at reset, with an internal pull-down that defaults to 0."
      },
      {
        "number": "42",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "43",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "44",
        "name": "IO46",
        "type": "input",
        "description": "GPIO46 input; strapping pin that, with GPIO0, controls boot mode and ROM message printing at reset, with an internal pull-down that defaults to 0."
      },
      {
        "number": "45",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high enables the chip, low powers it off; do not leave the EN pin floating."
      },
      {
        "number": "46",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "47",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "48",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "49",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "50",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "51",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "52",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "53",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "54",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "55",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "56",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "57",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "58",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "59",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "60",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "61",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin (the EPAD thermal pad position in the schematic); soldering it to the base board ground is optional and improves thermal performance."
      },
      {
        "number": "62",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "63",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "64",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      },
      {
        "number": "65",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; pins 1, 2, 30, 42, 43 and 46-65 are all ground."
      }
    ],
    "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: Table 3 lists the I/O/T pin type; mapped to KiCad class 'bidirectional' (high-impedance state noted ; Pin 27 is printed as NC in the datasheet; mapped to 'unconnected'.; Pin 61 is labelled GND in Table 3 and EPAD 61 in the schematic; it is the module's thermal pad. Data"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0861,
        "at": "2026-10-28T17:50:01"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf",
        "pages": 34,
        "sha256": "06999476c9d1dede",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-s2-mini-1u-n4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.4,
          15.4,
          2.399
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "090694a1dcc59db387fdc9e2aa0d785259ff6350fb78632dd030c0b4d3b2e9c9",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s2-mini-1u-n4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.4,
          15.4,
          2.399
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "252afffcbae1a346b7f02d24449ad1c1946b764fc170fd4638bb9227e5847542",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}