ch341_vb

This is the Visual Basic wrapper for CH341DLL library. It realize all the available working modes of ch341a chip: serial (SPI, IIC) and parallel (EPP, MEM).

Prerequisites

• USB driver for CH341 must be installed;
• ch341dll.dll must be placed near to your executable.

Usage

First, imports Ch341 namespace:

Imports Ch341

SPI example, VB.NET:

''' <summary>
''' Read ID register of BMP280 sensor.
''' </summary>
Private Sub CheckBmp280_spi()        
  Dim ch341 As New SpiMaster(0, True)
  Dim buf As Byte() = ch341.StreamSpi({&HD0}, 1)
  For Each b As Byte In buf
    Console.Write(b.ToString("X2"))
    Console.Write(" ")
  Next
  Console.WriteLine()
  ch341.CloseDevice()
End Sub

I2C example, VB.NET:

Dim ch341 As New I2cMaster(0, True, I2cMaster.I2cSpeed.Standard)

Additional documentation

More complex description:

• SPI examples
• I2C examples