{
  "uuid": "0x180D",
  "name": "Heart Rate",
  "type": "org.bluetooth.service",
  "characteristics": [
    {
      "uuid": "0x2A37",
      "name": "Heart Rate Measurement",
      "properties": ["Notify"],
      "format": "struct { flags: uint8, heartRate: uint8|uint16, energyExpended?: uint16, rrInterval?: uint16[] }",
      "unit": "beats per minute"
    },
    {
      "uuid": "0x2A38",
      "name": "Body Sensor Location",
      "properties": ["Read"],
      "format": "uint8",
      "unit": null
    },
    {
      "uuid": "0x2A39",
      "name": "Heart Rate Control Point",
      "properties": ["Write"],
      "format": "uint8",
      "unit": null
    }
  ]
}