public async void SendCommandTo1StChar(IReadOnlyList <GattCharacteristic> characteristics, byte[] commandToWrite)
{
var characteristic = characteristics[0];
Debug.WriteLine("Try to write to " + CharacteristicUuidsResolver.GetNameFromUuid(characteristic.Uuid));
try
{
var writer = new DataWriter();
writer.WriteBytes(commandToWrite);
await characteristic.WriteValueAsync(writer.DetachBuffer());
}
catch
{
}
}
private static void ValidateChars(string deviceId, GattDeviceService service, Guid charsUuid)
{
var chars = service.GetCharacteristics(charsUuid);
if (chars == null || chars.Count == 0)
{
return;
}
var charsName = CharacteristicUuidsResolver.GetNameFromUuid(charsUuid);
Debug.WriteLine($" {chars.Count} found for {charsName}");
foreach (GattCharacteristic characteristic in chars)
{
var charName = CharacteristicUuidsResolver.GetNameFromUuid(characteristic.Uuid);
var friendlyDesc = characteristic.UserDescription;
Debug.WriteLine($" {charName} - {friendlyDesc} - {characteristic.ProtectionLevel}");
}
}
public async void LoadDevicesCharacteristics(List <DeviceInformation> parrotDevices)
{
foreach (var device in parrotDevices)
{
try
{
var service = await GattDeviceService.FromIdAsync(device.Id);
if (null == service)
{
continue;
}
var characteristics = service.GetAllCharacteristics();
if (null == characteristics || characteristics.Count <= 0)
{
return;
}
Debug.WriteLine($"{characteristics.Count} chars found for {device.Id}");
AddLogAction($"{characteristics.Count} chars found for {device.Id}");
foreach (var characteristic in characteristics)
{
try
{
var charName = CharacteristicUuidsResolver.GetNameFromUuid(characteristic.Uuid);
Debug.WriteLine("char name: " + charName);
AddLogAction($"{characteristics.Count} chars found for {device.Id}");
// read properties
Debug.WriteLine("char name: " + characteristic.CharacteristicProperties);
}
catch
{
}
}
}
catch
{
Debug.WriteLine("0 chars found for " + device.Id);
}
}
}
public async void SendCommandToAllChar(IReadOnlyList <GattCharacteristic> characteristics, byte[] commandToWrite)
{
foreach (var characteristic in characteristics)
{
Debug.WriteLine("Try to write to " + CharacteristicUuidsResolver.GetNameFromUuid(characteristic.Uuid));
try
{
var writer = new DataWriter();
writer.WriteBytes(commandToWrite);
await characteristic.WriteValueAsync(writer.DetachBuffer());
Debug.WriteLine("Write sucessfull");
}
catch
{
Debug.WriteLine("Write error");
}
}
}