rfid

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Android NFC, do a null check in onCreate?

I have code to initialize my NFC adapter, but I am not sure how to intialize the varia开发者_开发百科bles during the onCreate. The app can be initialized whether an NFC TAG is in proximity or not, ie.[详细]

2023-04-12 12:12 分类：问答
RFID Reader to connect with Beagle Board [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-04-11 19:59 分类：问答
Trying to understand USB, using C

I have searched for these answers but had no luck :( I have been working with a RFID device from China, so I know next to nothing about it. I am trying to write a program (actualy i\'m trying to use s[详细]

2023-04-08 20:54 分类：问答
how far can nfc on mobile phone read rfid tags

I google on the internet and find that nfc on mobile phone is said to be able to read rfid tag (HF tag). Does anyb开发者_高级运维ody test how far it can read RFID tag, or what\'s reading range for RFI[详细]

2023-04-06 19:38 分类：问答
USB to COM converter for RFID keystrokes

I have been struggling with an RFID reader that is just like a HID keyboard. It takes an ID from a \'swiped\' keyfob or card and quickly enters keys into the computer just like a keyboard. As you can[详细]

2023-04-06 03:20 分类：问答
Android: how to write NFC-V (ISO15693) tags on Nexus S?

I\'m trying to write a RFID tag on a Nexus S (Android 2.3.4) using the NFC-V technology. Using transceive() with a write single block command (0x21) invariably leads to a[详细]

2023-04-06 02:48 分类：问答
Can I specify which HID my C++ program listens to

I am trying to create an application that reads keyboard input from a HID. The OS I am trying to acheive this on is Windows 7. In what way would I specify to my program that it needs to listen to just[详细]

2023-04-05 15:32 分类：问答
Can a Smartphone read RFID tags from a distance of few feet (NOT NFC)?

Being a bit more specific: I would like to know whether there\'s aSmartphone that can detect an 开发者_JAVA技巧RFID tag from few feet away using its original HW (no external devices) and OS capabiliti[详细]

2023-04-05 07:34 分类：问答
Access Facebook by RFID chip

I try to write a Facebook app. This app will communicate with a rfid chip. So what will it do. When is hold my RFID chip at a kiosk desk it will put on my Facebook for example a \"I Like\" command.[详细]

2023-04-02 13:40 分类：问答
RFID tag, Android Format

I am writing C# application for reading/writing RFID tags which ar开发者_运维知识库e formatted by android aplication (NXP). I found default keys (A0 A1 A2 A3 A4 A5andD3 F7 D3 F7 D3 F7) and i can read[详细]

2023-04-02 04:31 分类：问答