esp8266 连接websocket 示例代码
时间: 2024-04-13 15:23:35 浏览: 176
当然,ESP8266是一款低成本、低功耗的Wi-Fi模块,常用于物联网应用。下面是一个ESP8266连接WebSocket的示例代码:
```cpp
#include <ESP8266WiFi.h>
#include <WebSocketsClient.h>
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
const char* webSocketServer = "your_WEBSOCKET_SERVER";
WebSocketsClient webSocket;
void setup() {
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
webSocket.begin(webSocketServer);
webSocket.onEvent(webSocketEvent);
}
void loop() {
webSocket.loop();
}
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch (type) {
case WStype_DISCONNECTED:
Serial.println("Disconnected from WebSocket server");
break;
case WStype_CONNECTED:
Serial.println("Connected to WebSocket server");
break;
case WStype_TEXT:
Serial.print("Received message: ");
Serial.println((char*)payload);
break;
}
}
```
在这个示例代码中,你需要替换以下几个参数:
- `your_SSID`:你的Wi-Fi网络名称
- `your_PASSWORD`:你的Wi-Fi密码
- `your_WEBSOCKET_SERVER`:WebSocket服务器的地址
这段代码首先连接到Wi-Fi网络,然后初始化WebSocket客户端,并设置了一个回调函数`webSocketEvent`来处理WebSocket事件。在`webSocketEvent`函数中,根据事件类型进行相应的处理,比如连接成功、断开连接或接收到文本消息。
阅读全文