HeartbeatData
constructor(mfrId: UInt? = null, devId: UInt, dsc: UInt, ssc: UInt, sigBmp: UInt, semVer: DeviceFirmwareVersion, bootloaderSemVer: DeviceFirmwareVersion? = null, timestamp: UInt? = null, rssi: Int? = null, lastOobServerTimestamp: Long? = null)