In my experience, any microcontroller with an on-board Ethernet peripheral will probably suit your needs - some manufacturers do better deals on dev boards and limited compilers than others, so that may influence you. Check out Microchip, TI, Freescale and Keil (third party - but good tools).
Depending on how much work you want to do (in reverse order of time-to-burn!):
Buy a development board from anybody that has Ethernet already on board and working code samples.
Buy a development board that has a MCU with an Ethernet peripheral, but no code samples.
Design your own Ethernet hardware around a MCU with an Ethernet peripheral and write/debug your own code and hardware.
Just my 2c! Have fun.
p.s. And don't forget to test out the IDEs before you buy a dev board. There is a huge difference in quality around MCU development environments and it will directly affect your experience...
Easier and cheaper way would be to use something like Phidgets without learning a new language.
Allows you to connect a button to the phidgets board and then connect it a usb port. Use C# to write your communications layer. Phidget comes with a set of .net libraries to enable communications to and from the phidget board.
Check out the phidget forums on their site for answers and examples.
I think that the cleanest approach would be with a couple of XBee modules. Hide one of them inside the Easy Button, attach the other to a computer. When the button is pressed the computer will receive a signal and you can do whatever you like.
I'd recommend the PIC also. You might get samples of the micro from Microchip. They come with a TCP/IP Stack, student level C compiler (no optimizations). You just need to add power and an Ethernet jack.
The .NET app will need to listen for any broadcast packets on a certain port.
Recommend an XPort: very easy things to use if you need ethernet.
For information
Take a look at TCP-Lean by Jeremy Bentham. He was a company at IOSoft hardwareHere
He gets a full TCP/IP stack and web server running on a PIC. Source code is included. It applies equally well to any other hardware. MANY people have stuck PIC's onto old ISA 8-bit network cards. works pretty well.
If you could tolerate starting with serial networking, it's really easy to do Windows "direct-computer-to-computer connection" using a serial port and SLIP.
To send a packet, all you need to do is sent the right sequence of bytes.
The most involved bit is the Microsoft client-server handshake to set up the SLIP link. (Normal SLIP has no call initaition at all) MS protocol ( from memory) Client sends "CLIENT" in response, the server sends "CLIENTSERVER"
After that, a simple application can send a single canned SLIP-framed UDP packet any time it wants. (you don't really need a different sequence number forr a button sender.)
Rabbit 附带一个基于 C 语言变体的免费开发环境。 语言扩展在 C 实现中提供了一些内置的多任务功能。
You want an evaluation board for a processor that comes with cheap/free development tools and has onboard ethernet hardware. A couple that spring to mind are from Atmel (AVR32A) and from Rabbit.
Atmel provide a free development system which comes with a FreeRTOS port and ethernet demo software.
The Rabbit comes with a free development environment which is based on a variant of the C language. The language extensions provide some built in multi tasking capability within the C implementation.
I looked into this in 2008. I found one ready button from Germany, it was some $90 plus probably expensive shipping. I did not bookmark it and I have not been able to find ever since. Most likely it was discontinued. I did find this:
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根据我的经验，任何带有板载以太网外设的微控制器都可能适合您的需求 - 一些制造商在开发板和有限的编译器上比其他制造商做得更好，因此这可能会影响您。 查看 Microchip、TI、Freescale 和 Keil（第三方 - 但很好的工具）。
根据您想要完成的工作量（按照与燃烧时间相反的顺序！）：
您自己的代码和硬件。
只是我的2c！ 玩得开心。
ps 并且不要忘记在购买开发板之前测试 IDE。 MCU 开发环境的质量存在巨大差异，这将直接影响您的体验...
In my experience, any microcontroller with an on-board Ethernet peripheral will probably suit your needs - some manufacturers do better deals on dev boards and limited compilers than others, so that may influence you. Check out Microchip, TI, Freescale and Keil (third party - but good tools).
Depending on how much work you want to do (in reverse order of time-to-burn!):
your own code and hardware.
Just my 2c! Have fun.
p.s. And don't forget to test out the IDEs before you buy a dev board. There is a huge difference in quality around MCU development environments and it will directly affect your experience...
由于您希望使用 .NET（大概是 Windows），我建议您查看 Coding4Fun 。
以下是他们的一些硬件项目。
SInce you wish to use .NET (and presumably Windows) I suggest you take a look at Coding4Fun.
Here are some of their hardware projects.
一块 5 美元的 PIC 芯片只需少量的逻辑/功耗就可以做到这一点，请参见 www.microchip.com，根据数量，您可以构建一块板或购买一块。
A $5 PIC chip can do that with a small amount of logic/power, see www.microchip.com, depending on QTY, you can build a board or buy one.
更简单、更便宜的方法是使用 Phidgets 之类的东西，而无需学习新语言。
允许您将按钮连接到 phidgets 板，然后将其连接到 USB 端口。 使用 C# 编写通信层。 Phidget 附带一组 .net 库，用于实现与 phidget 板之间的通信。
查看其网站上的 phidget 论坛以获取答案和示例。
Easier and cheaper way would be to use something like Phidgets without learning a new language.
Allows you to connect a button to the phidgets board and then connect it a usb port. Use C# to write your communications layer. Phidget comes with a set of .net libraries to enable communications to and from the phidget board.
Check out the phidget forums on their site for answers and examples.
我认为最干净的方法是使用几个 XBee 模块。 将其中一个隐藏在 Easy Button 内，将另一个连接到计算机。 当按下按钮时，计算机将收到信号，您可以做任何您喜欢的事情。
I think that the cleanest approach would be with a couple of XBee modules. Hide one of them inside the Easy Button, attach the other to a computer. When the button is pressed the computer will receive a signal and you can do whatever you like.
如果您对以太网一心一意，可以使用 XPort 和 WizNet 模块使将以太网添加到基于微控制器的系统变得更加简单。
If you're dead set on Ethernet, modules such as the XPort and WizNet modules make it much simpler to add Ethernet to microcontroller-based systems.
我也推荐 PIC。 您可能会从 Microchip 获得微型样品。 它们配备了 TCP/IP 堆栈、学生级 C 编译器（无优化）。 您只需要添加电源和以太网插孔即可。
.NET 应用程序需要侦听某个端口上的任何广播数据包。
听起来像是一个简洁的小项目。
I'd recommend the PIC also. You might get samples of the micro from Microchip. They come with a TCP/IP Stack, student level C compiler (no optimizations). You just need to add power and an Ethernet jack.
The .NET app will need to listen for any broadcast packets on a certain port.
Sounds like a neat little project.
推荐 XPort：如果您需要以太网，使用起来非常简单。
有关信息，
请查看 Jeremy Bentham 撰写的 TCP-Lean。
他是 IOSoft hardwareHere 的一家公司，
他拥有完整的 TCP/IP 堆栈和 Web 服务器在 PIC 上运行。
包含源代码。
它同样适用于任何其他硬件。
许多人将 PIC 粘贴到旧的 ISA 8 位网卡上。 效果很好。
如果您可以容忍从串行网络开始，那真的很容易做到
使用串行端口和 SLIP 的 Windows“直接计算机到计算机连接”。
要发送数据包，您所需要做的就是发送正确的字节序列。
最涉及的部分是用于设置 SLIP 链接的 Microsoft 客户端-服务器握手。
（普通 SLIP 根本没有呼叫发起）
MS协议（凭记忆）
客户端发送“CLIENT”
作为响应，服务器发送“CLIENTSERVER”。
之后，一个简单的应用程序可以随时发送单个封装的 SLIP 帧 UDP 数据包。
（您实际上并不需要为按钮发送器使用不同的序列号。）
Recommend an XPort: very easy things to use if you need ethernet.
For information
Take a look at TCP-Lean by Jeremy Bentham.
He was a company at IOSoft hardwareHere
He gets a full TCP/IP stack and web server running on a PIC.
Source code is included.
It applies equally well to any other hardware.
MANY people have stuck PIC's onto old ISA 8-bit network cards. works pretty well.
If you could tolerate starting with serial networking, it's really easy to do
Windows "direct-computer-to-computer connection" using a serial port and SLIP.
To send a packet, all you need to do is sent the right sequence of bytes.
The most involved bit is the Microsoft client-server handshake to set up the SLIP link.
(Normal SLIP has no call initaition at all)
MS protocol ( from memory)
Client sends "CLIENT"
in response, the server sends "CLIENTSERVER"
After that, a simple application can send a single canned SLIP-framed UDP packet any time it wants.
(you don't really need a different sequence number forr a button sender.)
您需要一个带有廉价/免费开发工具并具有板载以太网硬件的处理器评估板。 我想到的两个例子是 Atmel (AVR32A) 和 Rabbit。
Atmel 提供免费的开发系统，配有 FreeRTOS 端口和以太网演示软件。
Rabbit 附带一个基于 C 语言变体的免费开发环境。 语言扩展在 C 实现中提供了一些内置的多任务功能。
You want an evaluation board for a processor that comes with cheap/free development tools and has onboard ethernet hardware. A couple that spring to mind are from Atmel (AVR32A) and from Rabbit.
Atmel provide a free development system which comes with a FreeRTOS port and ethernet demo software.
The Rabbit comes with a free development environment which is based on a variant of the C language. The language extensions provide some built in multi tasking capability within the C implementation.
我在 2008 年对此进行了调查。我发现了一个来自德国的现成按钮，价格约为 90 美元，加上可能昂贵的运费。 我没有为它添加书签，从那以后我就再也找不到它了。 最有可能的是它已经停产了。 我确实找到了这个：
http://www.plasma2002.com/epb/#details
I looked into this in 2008. I found one ready button from Germany, it was some $90 plus probably expensive shipping. I did not bookmark it and I have not been able to find ever since. Most likely it was discontinued. I did find this:
http://www.plasma2002.com/epb/#details