![]() ![]() : 'A socket operation failed because the destination host was down' When executing the code it gives the following error in cli.Connect(device.DeviceAddress, BluetoothService.Handsfree) : N = await stream.ReadAsync(buff, 0, buff.Length) If (cli.Connected) MessageBox.Show("OK") device.SetServiceState(BluetoothService.Handsfree, true) Ĭli.Connect(device.DeviceAddress, BluetoothService.Handsfree) Use the cigarette socket adapter to charge in a motor vehicle. To do so I try to connect to the headset using BluetoothService.Handsfree: BluetoothDevicePicker picker = new BluetoothDevicePicker() īluetoothDeviceInfo device = await picker.PickSingleDeviceAsync() īluetoothClient cli = new BluetoothClient() Plug the USB charger into the device and a power supply. ![]() Now, I am trying to do get this AT commands from the headset in my Windows C# application using the 32feet () library. ![]() #Bluetooth hands free with car battery indicator androidI have extracted the bluetooth log from my Android phone (which is able to get the battery level) and the headset is using HFP to send AT command with the battery information (AT+IPHONEACCEV), this is one of the packets extracted from the log (with wireshark): Frame 1122: 38 bytes on wire (304 bits), 38 bytes captured (304 bits)Įncapsulation type: Bluetooth H4 with linux header (99)Īrrival Time: 12:18:16.449232000 Romance Daylight TimeĪddress: E/A flag: 1, C/R flag: 0, Direction: 0, Channel: 2Ĭontrol: Frame type: Unnumbered Information with Header check (UIH) (0xef), P/F flag: 0Ĭommand: +IPHONEACCEV (Apple Bluetooth Headset Battery Level Indication) I am trying to get the battery level of my headset device with bluetooth 4.1 with AT commands from Windows using the Handsfree Profile (HFP). ![]()
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