添加智能灯固件代码

firmware/esp-idf/wumei-smart-firmware/examples/protocols/asio/chat_server/README.md

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+# Asio chat server example
+
+Simple Asio chat server using WiFi STA or Ethernet.
+
+## Example workflow
+
+- Wi-Fi or Ethernet connection is established, and IP address is obtained.
+- Asio chat server is started on port number defined through the project configuration.
+- Chat server echoes a message (received from any client) to all connected clients.
+
+## Running the example
+
+- Open project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
+- Set server port number in menuconfig, "Example configuration".
+- Run `idf.py -p PORT flash monitor` to build and upload the example to your board and connect to it's serial terminal.
+- Wait for the board to connect to WiFi or Ethernet (note the IP address).
+- Connect to the server using multiple clients, for example using any option below.
+    - build and run asi chat client on your host machine
+    - run chat_client asio example on ESP platform
+    - since chat message consist of ascii size and message, it is possible to 
+        netcat `nc IP PORT` and type for example `   4ABC<CR>` to transmit 'ABC\n'
+
+See the README.md file in the upper level 'examples' directory for more information about examples.