Am search everywhere. I download SDK at this link https://github.com/developermypos/myPOS-SDK-dotNET and actually many tries nothing works.
The visa reader of type https://geidea.net I think it use COM Port..
I download the library at link above. all i need is simple Send for example a number 500 for example to Visa Reader NFC
Please tip me how you guys do it? how to achieve this? What is SDK used here? or How to send a number to COM port or something. maybe someone know.
