This interface card has 5 digital input channels and 8 digital output channels. In addition, there are 2 analogueue inputs and 2 analogueue outputs with 8 bit resolution. The number of inputs/outputs can be extended further by connecting more (maximum four) cards to the USB ports of the PC. All communication routines are contained in a dynamic link library (DLL). You can write custom Windows applications (XP, Vista, Windows7) in Delphi, Visual Basic, C ++ - Builder, or any other 32-bit Windows application development tool that supports calls to a DLL. Source code examples for Visual Basic, Visual C ++, Visual C #, Excel, Delphi, and Borland C ++ Builder are available. Hardware and software are downward compatible with our previous versions. https://elecena.pl/product/28347678/whadda-wsi8055n-usb-experiment-interface-board 2025-04-12 https://elecena.pl/product/28347678/whadda-wsi8055n-usb-experiment-interface-board 2025-08-17