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Arduino笔记-WeMos D1通过HTTP亮熄灯

2020-04-02 13:36:44 作者：互联网

程序运行截图如下：

低位：

对应的演示：

熄灯：

源码如下：

#include <ESP8266WiFi.h>

const char* ssid = "FAST_8482";
const char* password = "123456";

WiFiServer server(80);

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

  pinMode(2, OUTPUT);
  digitalWrite(2, 0);
  
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  
  // Start the server
  server.begin();
  Serial.println("Server started");

  // Print the IP address
  Serial.println(WiFi.localIP());
}

void loop() {
  
  //判断是否有客户端连接
  WiFiClient client = server.available();
  if (!client) {
    return;
  }
  
  //等待用户发送数据
  Serial.println("new client");
  while(!client.available()){
    delay(1);
  }
  
  //获取数据
  String req = client.readStringUntil('\r');
  Serial.println(req);
  client.flush();
  
  //匹配
  int val;
  if (req.indexOf("/gpio/0") != -1)
    val = 0;
  else if (req.indexOf("/gpio/1") != -1)
    val = 1;
  else {
    Serial.println("invalid request");
    client.stop();
    return;
  }

  digitalWrite(2, val);
  
  client.flush();

  //设置响应
  String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\nGPIO is now ";
  s += (val)?"high":"low";
  s += "</html>\n";

  // Send the response to the client
  client.print(s);
  delay(1);
  Serial.println("Client disonnected");

  // client将会被释放
  // 当这个函数结束后client连接将会被消耗
}

标签：HTTP,val,Arduino,WiFi,WeMos,server,client,println,Serial
来源： https://blog.csdn.net/qq78442761/article/details/105240756