esp8266wifi模块代码，c52单片机，激光测距

ESP8266是一款低成本、高性能的Wi-Fi芯片，它支持TCP/IP协议，并且能够通过串口与MCU进行通信。下面是一些ESP8266的代码示例：
1. 连接WiFi网络

#include <ESP8266WiFi.h>

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

void setup() {
  Serial.begin(115200);
  delay(10);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
}

2. 发送HTTP请求

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

void setup() {
  Serial.begin(115200);
  delay(10);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status

    HTTPClient http;

    http.begin("http://jsonplaceholder.typicode.com/posts/1"); //Specify the URL
    int httpCode = http.GET(); //Make the request

    if (httpCode > 0) { //Check for the returning code
      String payload = http.getString();
      Serial.println(httpCode);
      Serial.println(payload);
    }

    http.end(); //Close connection
  }
  delay(10000); //Send a request every 10 seconds
}

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