This SDK enables the ACR123U to be used and integrated to various POS Terminals. This SDK provides sample codes for device and contactless card programming in the Linux and Windows platforms, and supports programming languages including MS Visual C++, MS Visual C#.NET, and Linux GTK C++. The ACR123U SDK provides a demo for the payment functionalities of the ACR123U. By using the JCOP cards provided, which emulate a valid (non-expired card) and invalid card (expired card), the demo shows the various responses of the payment kernel loaded in the ACR123U to various payment scenarios. I
