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//Original source code : http://enrique.latorres.org/2017/10/17/testing-lolin-nodemcu-v3-esp8266/ //Download LoLin NodeMCU V3 ESP8266 Board for Arduino IDE (json) : http://arduino.esp8266.com/stable/package_esp8266com_index.json #include <ESP8266WiFi.h> const char* ssid = "你家的wifi名稱"; const char* password = "你家的wifi密碼"; int ledPin = 2; // Arduino standard is GPIO13 but lolin nodeMCU is 2 http://www.esp8266.com/viewtopic.php?f=26&t=13410#p61332 WiFiServer server(80); void setup() { Serial.begin(9600); delay(10); pinMode(ledPin, OUTPUT); digitalWrite(ledPin, HIGH); // 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"); // Start the server server.begin(); Serial.println("Server started"); // Print the IP address Serial.print("Use this URL to connect: "); Serial.print("http://"); Serial.print(WiFi.localIP()); Serial.println("/"); } void loop() { // Check if a client has connected WiFiClient client = server.available(); if (!client) { return; } // Wait until the client sends some data Serial.println("new client"); while(!client.available()){ delay(1); } // Read the first line of the request String request = client.readStringUntil('r'); Serial.println(request); client.flush(); // Match the request //Lolin nodeMCU has inverted the LED. //Low level turns on the led //while High level turns it off int value = HIGH; //initially off if (request.indexOf("/LED=OFF") != -1) { digitalWrite(ledPin, HIGH); value = HIGH; } if (request.indexOf("/LED=ON") != -1) { digitalWrite(ledPin, LOW); value = LOW; } // Set ledPin according to the request //digitalWrite(ledPin, value); // Return the response client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(""); client.println("<!DOCTYPE HTML>"); client.println("<html>"); client.println("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"); client.println("<link rel=\"stylesheet\" href=\"https://www.w3schools.com/w3css/4/w3.css\">"); client.println("<style>p.padding{padding-left: 0.4cm;}p{color: black;}cred{color: red}cgreen{color: green}</style>"); client.print("<br><p class=\"padding\">On-Board Led is now : "); //High=off //Low=on if(value == HIGH) { client.print("<cred>Off</cred>"); } else { client.print("<cgreen>On<cgreen></p>"); } client.println("<div class=\"w3-container\">"); client.println("<br>"); client.println("<a href=\"/LED=ON\"\"><button class=\"w3-btn w3-ripple w3-green\">Turn On </button></a>"); client.println("<a href=\"/LED=OFF\"\"><button class=\"w3-btn w3-ripple w3-red\">Turn Off </button></a><br />"); client.println("</div>"); client.println("</html>"); delay(1); Serial.println("Client disonnected"); Serial.println(""); }
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