Is SDK for NFC reader/writer acr122u device required to build read/write application?

Question

i have nexus s, nexus 4 and 6 mifare nfc tags, and want to make an desktop application with nfc reader/writer acr122u device (which i haven\'t bought it yet).

But apart

Answer 1

To develop applications for the ACR122U you do not need to purchase the SDK from ACS. From a computing/development perspective, the ACR122U is a smartcard reader/writer.

To develop with Java you will need the ACR122U drivers and to code against the Java Smart Card I/O API

The SDK on offer from ACS is simply just a collection of sample code for various platforms (Java, C#.NET, VB6, C++) It is not a requirement to interface with the device.

Here is some sample code which looks like it could be useful to you. What exactly are you trying to achieve.

Finally, if you are interested in .NET dev then look at the CardWerk Smart Card API for .NET. I used this and it greatly simplified things as interfacing with winscard.dll seemeed like a lot of work.