' In Package Manager Console: ' Install-Package InTheHand.Net.Personal
Public Class BluetoothHelper Public Shared Sub SendString(targetDeviceName As String, message As String) Try ' Method 1: Try COM ports first For Each com In My.Computer.Ports.SerialPortNames Using sp As New SerialPort(com, 9600) sp.Open() sp.WriteLine(message) sp.Close() Return End Using Next ' Method 2: Fallback to 32feet.NET Dim device = FindBluetoothDevice(targetDeviceName) If device IsNot Nothing Then SendData(device, message) End If Catch ex As Exception MessageBox.Show("Bluetooth failed: " & ex.Message) End Try End Sub End Class CodeNewbie_42 marks the thread as SOLVED and writes: "Turns out, the answer was hiding in plain sight. Bluetooth in VB.NET isn't hard – it's just serial communication with a different handshake . Thank you, VBForums. May your posts remain forever unarchived." Thread closed. 37,284 views. 9 helpful votes. Want me to turn this into a full downloadable VB.NET project or explain any specific Bluetooth scenario (e.g., receiving data, multiple connections, pairing without user dialog)? vb net bluetooth vbforums
Dim stream As NetworkStream = client.GetStream() Dim data As Byte() = System.Text.Encoding.ASCII.GetBytes(message & vbCrLf) stream.Write(data, 0, data.Length) stream.Close() client.Close() End Sub User: BT_Frustrated replies: "Thanks, but my device uses BLE (Bluetooth Low Energy) – not classic Bluetooth!" SerialPortSavior responds: "Ah, different beast. For BLE in VB.NET, you’ll need Windows.Devices.Bluetooth (UWP APIs) – but you can call them from WinForms with a little trick:" Imports Windows.Devices.Bluetooth Imports Windows.Devices.Bluetooth.GenericAttributeProfile Imports System.Threading.Tasks Public Async Function ConnectToBLE(deviceId As String) As Task Dim device As BluetoothLEDevice = Await BluetoothLEDevice.FromIdAsync(deviceId) Dim services As GattDeviceServicesResult = Await device.GetGattServicesAsync() ' In Package Manager Console: ' Install-Package InTheHand
Imports InTheHand.Net.Bluetooth Imports InTheHand.Net.Sockets Public Function FindBluetoothDevice(deviceName As String) As BluetoothDeviceInfo Dim client As New BluetoothClient() Dim devices As BluetoothDeviceInfo() = client.DiscoverDevices(255) May your posts remain forever unarchived