Nexus 的 NFC/RFID 入门

发布于 2024-10-08 10:00:33 字数 231 浏览 11 评论 0原文

Nexus S NFC/RFID 入门。有人可以提供任何指导吗?

我有兴趣使用 Nexus 的 NFC/RFID 硬件创建一些自制演示。 我想我需要找到合适的标签以及如何将 url 编码为 Nexus 可以通过其标签应用程序读取的标签。 不确定 iso 14443 标签或 mifare 等

nexus 支持所有 libnfc 吗?

如果我root了设备,我可以访问写入功能吗?

谢谢

Getting started with Nexus S NFC/RFID. Can anyone provide any guidance?

I'm interested in creating some home brew demos using the nexus s NFC/RFID hardware.
I think I need to find the appropriate tags and how to encode urls into tags that the nexus s can read by it's tags app.
Not sure about iso 14443 tags or mifare etc

Does nexus s support all of libnfc?

If I root the device can I get access to write functionality?

Thanks

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够钟 2024-10-15 10:00:33

Nexus S 将读取 Mifare 标签。我已使用 Nexus S 从智能卡重播了 YouTube 视频 (http://www.youtube.com/watch?v=eu7fQsPjDls)。该 URL 是使用另一台设备 (Nokia 6212) 写入的。

The Nexus S will read Mifare tags. I have replayed YouTube videos (http://www.youtube.com/watch?v=eu7fQsPjDls) from a smartcard using the Nexus S. The URL was written with another device (Nokia 6212).

别理我 2024-10-15 10:00:33

一种可能性:我注意到 Nexus S 可以读取 touchatag 制造的 RFID 标签,touchatag 是一家阿尔卡特朗讯合资企业,成立已有几年了。他们有一个网页(谷歌“touchatag store”),您可以在其中订购包含 10 个标签和 USB 读取器的“入门套件”。

这些标签被硬编码到 touchatag mothership 的 URL,www.ttag.be/[tagid]

因此,您可以通过他们的网站注册一个标签,在阅读器上扫描它,并将所需的 URL 与它相关联。当有人用手机读取标签时,它将显示为 www.ttag.be/[tagid] 并从那里重定向到所需的 URL。

One possibility: I've noticed that the Nexus S can read RFID tags made by touchatag, an Alcatel-Lucent venture that has been around a couple years. They have a web page (google 'touchatag store') where you can order a "starter kit" of 10 tags plus a USB reader.

The tags are hard-coded to URLs at the touchatag mothership, www.ttag.be/[tagid]

So the idea is you register a tag through their web site, scanning it on the reader and associating a desired URL with it. When someone reads the tag with their phone, it will show up as www.ttag.be/[tagid] and from there it redirects to the desired URL.

半仙 2024-10-15 10:00:33

我在其中一个部分回答了这个问题Nexus S 相关问题

此外,您还可以参考 developer.android.com URL 获取演示应用程序。我认为,这使用了虚拟 NFC 标签。

如果您有兴趣开发一些硬件演示,那么您需要购买一些实际的 NFC 标签,并在您的 Nexus S 手机设备上试用上述应用程序。我找到了一些网站 (12) 销售 NFC 标签、套件等。顺便说一句,我还没有尝试过这些网站。

基于 我遇到的,目前 Nexus S 只提供 NFC 标签的读取功能,并计划支持其他模式。

编辑:

Android 博客 指出以下是 Android 中的新功能2.3.3:

  • 全面的 NFC 读取器/写入器 API,可让应用程序读取和写入
    几乎所有正在使用的标准 NFC 标签
    今天。
  • 高级意图调度,使应用程序能够更好地控制如何/何时
    当 NFC 标签出现时,它们就会启动
    进入范围。
  • 对与其他 NFC 的点对点连接的支持有限
    设备。

I had answered this question partially in one of the Nexus S related questions.

Also, you can refer the developer.android.com URL for a demo app. I think, this uses dummy NFC tag.

If you are interested in developing some hardware demos then you need to buy a few actual NFC tags and try out the above app on your Nexus S phone device. I found a few sites (1, 2) who sell NFC tags, kits, etc. BTW, I have not tried any of these sites.

Based on what I came across, for now Nexus S provides only read functionality for NFC tags and support for other modes is planned.

EDIT:

Android blog states following are the new features in Android 2.3.3:

  • A comprehensive NFC reader/writer API that lets apps read and write to
    almost any standard NFC tag in use
    today.
  • Advanced Intent dispatching that gives apps more control over how/when
    they are launched when an NFC tag
    comes into range.
  • Some limited support for peer-to-peer connection with other NFC
    devices.
再浓的妆也掩不了殇 2024-10-15 10:00:33

我建议您使用像ACR122U-A2这样的读写器来读写标签Topaz和Mifare卡。
在 SmartId 中,我们是用这对双胞胎开发的一对解决方案。
http://www.youtube.com/watch?v=hYFwnc-apnI& ;特征=fvsr

I suggest you to but a reader/writer like ACR122U-A2 to read/write tag Topaz and Mifare Card.
In SmartId we are a pair of solution just developed with this twin.
http://www.youtube.com/watch?v=hYFwnc-apnI&feature=fvsr

为人所爱 2024-10-15 10:00:33

If you have upgraded your Nexus to Android 4.0 then you might want to check out this Eclipse plugin (disclamer: shameless plug of own project). It uses Android NFC hardware and also supports a few NFC readers like the ACR122U.

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