{
  "schemaVersion": 1,
  "purpose": "V1.7 software logical connections; not a physical soldering guide",
  "date": "2026-10-04",
  "firmwareProfile": "SDA27/SCL22/INT35/RST19",
  "sourceImage": {
    "file": "wiring-logical-reviewed-20261004.png",
    "sha256": "687f1ed9003699b9a6d954ddfae5135a9e1f08b8d2511360538581ca05ed49be",
    "width": 1920,
    "height": 1080
  },
  "sourceVerification": {
    "jsonSha256": "adb4bb63a26ff08142ec3b674a11d2a60d6b3592389e96775b62b85a75aa70f6",
    "fzzSha256": "92d9ab600d9b8a5e6e50d27fffae55c392f1ca882a6a2e5a6ba51c5a15142793",
    "sixEndpointReopenPassed": true,
    "entityWiringMeasured": false
  },
  "connections": [
    {
      "signal": "VCC",
      "modulePin": "VCC",
      "cydName": "3V3",
      "gpio": null,
      "logicalEndpoint": false,
      "physicalLocationEvidenceInSource": true
    },
    {
      "signal": "SDA",
      "modulePin": "SDA",
      "cydName": "GPIO27 (SDA)",
      "gpio": 27,
      "logicalEndpoint": false,
      "physicalLocationEvidenceInSource": true
    },
    {
      "signal": "SCL",
      "modulePin": "SCL",
      "cydName": "GPIO22 (SCL)",
      "gpio": 22,
      "logicalEndpoint": false,
      "physicalLocationEvidenceInSource": true
    },
    {
      "signal": "GND",
      "modulePin": "GND",
      "cydName": "GND",
      "gpio": null,
      "logicalEndpoint": false,
      "physicalLocationEvidenceInSource": true
    },
    {
      "signal": "RST",
      "modulePin": "RST",
      "cydName": "GPIO19 (RST)",
      "gpio": 19,
      "logicalEndpoint": true,
      "physicalLocationEvidenceInSource": false
    },
    {
      "signal": "INT",
      "modulePin": "INT",
      "cydName": "GPIO35 (INT)",
      "gpio": 35,
      "logicalEndpoint": true,
      "physicalLocationEvidenceInSource": true
    }
  ],
  "limits": [
    "GPIO19/RST is a virtual logical endpoint; physical soldering point on this board is unconfirmed.",
    "GPIO35/INT has rear P3 photo evidence; the front-view virtual point is not the physical soldering coordinate.",
    "SDA27 and SCL22 logical signals corrected; no firmware upload or physical wiring verification performed.",
    "Module illustration is a reference image, not proof of the user module brand."
  ]
}