pxtparts.json

{
    "airQuality": {
        "visual": {
            "image": "parts/airQuality.svg",
            "width": 63,
            "height": 63,
            "pinDistance": 7.2,
            "pinLocations": [
                {"x": 23, "y": 5},
                {"x": 32, "y": 5},
                {"x": 5, "y": 5},
                {"x": 14, "y": 5}
            ]
        },
        "numberOfPins": 4,
        "instantiation": {
            "kind": "function",
            "fullyQualifiedName": "airQuality.hardwareID,airQuality.readCo2,airQuality.readTvoc,airQuality.readStatus,airQuality.readError,airQuality.appStart",
            "argumentRoles": [{
                    "pinInstantiationIdx": 0
                }]
        },
        "pinDefinitions": [
            {"target": "SDA", "style": "male", "orientation": "+Y" },
            {"target": "SCL", "style": "male", "orientation": "+Y" },
            {"target": "ground", "style": "male", "orientation": "+Y" },
            {"target": "threeVolt", "style": "male", "orientation": "+Y" }
        ],
        "assembly": [
            {"pinIndices": [0, 1, 2, 3]}
        ]
    }
}