public async Task <bool> RefreshData()
{
var mfd = await CharFeedback.ReadValueAsync(BluetoothCacheMode.Uncached);
Data = RestDeviceData.FromBuffer(mfd.Value);
return(true);
}
public static RestDeviceData FromBuffer(IBuffer buffer)
{
var retval = new RestDeviceData();
var data = new byte[buffer.Length];
DataReader.FromBuffer(buffer).ReadBytes(data);
//RestDevice.Dbg("manufacturer data: " + BitConverter.ToString(data));
int i = 0; // data index
while (i < data.Length)
{
switch (data[i])
{
case B_HEADER1:
case B_HEADER2:
// TODO: verify header
i += 3;
break;
case B_COLOR:
retval.Color = Color.FromArgb(data[i + 4], data[i + 1], data[i + 2], data[i + 3]);
i += 5;
break;
case B_EVENT_NEXT:
// TODO: parse next event
i += 6;
break;
case B_PRESET_POWER:
// TODO: parse preset
retval.Power = (data[i + 1] & 0b1100_0000) != 0b1100_0000;
i += 2;
break;
case B_AUDIO:
retval.AudioTrack = (AudioTrack)data[i + 1];
retval.Volume = data[i + 2];
i += 3;
break;
case B_TIME:
// TODO: parse time
i += 5;
break;
case B_EVENT_ACTIVE:
// TODO: parse active event
i += 2;
break;
case 0:
i += 1;
break;
default:
RestDevice.Dbg("unknown data id: " + data[i].ToString("X"));
i += 1;
break;
}
}
RestDevice.Dbg($"power:{retval.Power}, color:{retval.Color}, vol:{retval.Volume}, trk: {retval.AudioTrack}");
return(retval);
}
