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发表于 2023-4-30 08:07:32
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网上找了一段ESP32 web server 代码,控制LED开关,实现了我的基本要求,只要把LED换成继电器,就好了
- #include <WiFi.h>
- #include <WebServer.h>
- /*Put your SSID & Password*/
- const char* ssid = " YourNetworkName"; // Enter SSID here
- const char* password = " YourPassword"; //Enter Password here
- WebServer server(80);
- uint8_t LED1pin = 4;
- bool LED1status = LOW;
- uint8_t LED2pin = 5;
- bool LED2status = LOW;
- void setup() {
- Serial.begin(115200);
- delay(100);
- pinMode(LED1pin, OUTPUT);
- pinMode(LED2pin, OUTPUT);
- Serial.println("Connecting to ");
- Serial.println(ssid);
- //connect to your local wi-fi network
- WiFi.begin(ssid, password);
- //check wi-fi is connected to wi-fi network
- while (WiFi.status() != WL_CONNECTED) {
- delay(1000);
- Serial.print(".");
- }
- Serial.println("");
- Serial.println("WiFi connected..!");
- Serial.print("Got IP: "); Serial.println(WiFi.localIP());
- server.on("/", handle_OnConnect);
- server.on("/led1on", handle_led1on);
- server.on("/led1off", handle_led1off);
- server.on("/led2on", handle_led2on);
- server.on("/led2off", handle_led2off);
- server.onNotFound(handle_NotFound);
- server.begin();
- Serial.println("HTTP server started");
- }
- void loop() {
- server.handleClient();
- if(LED1status)
- {digitalWrite(LED1pin, HIGH);}
- else
- {digitalWrite(LED1pin, LOW);}
-
- if(LED2status)
- {digitalWrite(LED2pin, HIGH);}
- else
- {digitalWrite(LED2pin, LOW);}
- }
- void handle_OnConnect() {
- LED1status = LOW;
- LED2status = LOW;
- Serial.println("GPIO4 Status: OFF | GPIO5 Status: OFF");
- server.send(200, "text/html", SendHTML(LED1status,LED2status));
- }
- void handle_led1on() {
- LED1status = HIGH;
- Serial.println("GPIO4 Status: ON");
- server.send(200, "text/html", SendHTML(true,LED2status));
- }
- void handle_led1off() {
- LED1status = LOW;
- Serial.println("GPIO4 Status: OFF");
- server.send(200, "text/html", SendHTML(false,LED2status));
- }
- void handle_led2on() {
- LED2status = HIGH;
- Serial.println("GPIO5 Status: ON");
- server.send(200, "text/html", SendHTML(LED1status,true));
- }
- void handle_led2off() {
- LED2status = LOW;
- Serial.println("GPIO5 Status: OFF");
- server.send(200, "text/html", SendHTML(LED1status,false));
- }
- void handle_NotFound(){
- server.send(404, "text/plain", "Not found");
- }
- String SendHTML(uint8_t led1stat,uint8_t led2stat){
- String ptr = "<!DOCTYPE html> <html>\n";
- ptr +="<head><meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">\n";
- ptr +="<title>LED Control</title>\n";
- ptr +="<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
- ptr +="body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;} h3 {color: #444444;margin-bottom: 50px;}\n";
- ptr +=".button {display: block;width: 80px;background-color: #3498db;border: none;color: white;padding: 13px 30px;text-decoration: none;font-size: 25px;margin: 0px auto 35px;cursor: pointer;border-radius: 4px;}\n";
- ptr +=".button-on {background-color: #3498db;}\n";
- ptr +=".button-on:active {background-color: #2980b9;}\n";
- ptr +=".button-off {background-color: #34495e;}\n";
- ptr +=".button-off:active {background-color: #2c3e50;}\n";
- ptr +="p {font-size: 14px;color: #888;margin-bottom: 10px;}\n";
- ptr +="</style>\n";
- ptr +="</head>\n";
- ptr +="<body>\n";
- ptr +="<h1>ESP32 Web Server</h1>\n";
- ptr +="<h3>Using Station(STA) Mode</h3>\n";
-
- if(led1stat)
- {ptr +="<p>LED1 Status: ON</p><a class="button button-off" href="/led1off">OFF</a>\n";}
- else
- {ptr +="<p>LED1 Status: OFF</p><a class="button button-on" href="/led1on">ON</a>\n";}
- if(led2stat)
- {ptr +="<p>LED2 Status: ON</p><a class="button button-off" href="/led2off">OFF</a>\n";}
- else
- {ptr +="<p>LED2 Status: OFF</p><a class="button button-on" href="/led2on">ON</a>\n";}
- ptr +="</body>\n";
- ptr +="</html>\n";
- return ptr;
- }
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