~/.homebridge/config.json example for homebridge-udp-contactsensor

config.json

       {
            "accessory": "UdpContactSensor",
            "name": "UDP Contact Sensors",
            "listen_port": 8266,
            "data": {
                "Switch #2": { "on": "02ff", "off": "0200" },
                "Switch #3": { "on": "03ff", "off": "0300" },
                "Switch #4": { "on": "04ff", "off": "0400" }
            }