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- /*
- WiFi Web Server LED Blink
- A simple web server that lets you blink an LED via the web.
- This sketch will print the IP address of your WiFi Shield (once connected)
- to the Serial monitor. From there, you can open that address in a web browser
- to turn on and off the LED on pin 5.
- If the IP address of your shield is yourAddress:
- http://yourAddress/H turns the LED on
- http://yourAddress/L turns it off
- This example is written for a network using WPA2 encryption. For insecure
- WEP or WPA, change the Wifi.begin() call and use Wifi.setMinSecurity() accordingly.
- Circuit:
- * WiFi shield attached
- * LED attached to pin 5
- created for arduino 25 Nov 2012
- by Tom Igoe
- ported for sparkfun esp32
- 31.01.2017 by Jan Hendrik Berlin
-
- */
-
- #include <WiFi.h>
-
- const char* ssid = "yourssid";
- const char* password = "yourpasswd";
-
- WiFiServer server(80);
-
- void setup()
- {
- Serial.begin(115200);
- pinMode(5, OUTPUT); // set the LED pin mode
-
- delay(10);
-
- // We start by connecting to a 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());
-
- server.begin();
-
- }
-
- void loop(){
- WiFiClient client = server.available(); // listen for incoming clients
-
- if (client) { // if you get a client,
- Serial.println("New Client."); // print a message out the serial port
- String currentLine = ""; // make a String to hold incoming data from the client
- while (client.connected()) { // loop while the client's connected
- if (client.available()) { // if there's bytes to read from the client,
- char c = client.read(); // read a byte, then
- Serial.write(c); // print it out the serial monitor
- if (c == '\n') { // if the byte is a newline character
-
- // if the current line is blank, you got two newline characters in a row.
- // that's the end of the client HTTP request, so send a response:
- if (currentLine.length() == 0) {
- // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
- // and a content-type so the client knows what's coming, then a blank line:
- client.println("HTTP/1.1 200 OK");
- client.println("Content-type:text/html");
- client.println();
-
- // the content of the HTTP response follows the header:
- client.print("Click <a href=\"/H\">here</a> to turn the LED on pin 5 on.<br>");
- client.print("Click <a href=\"/L\">here</a> to turn the LED on pin 5 off.<br>");
-
- // The HTTP response ends with another blank line:
- client.println();
- // break out of the while loop:
- break;
- } else { // if you got a newline, then clear currentLine:
- currentLine = "";
- }
- } else if (c != '\r') { // if you got anything else but a carriage return character,
- currentLine += c; // add it to the end of the currentLine
- }
-
- // Check to see if the client request was "GET /H" or "GET /L":
- if (currentLine.endsWith("GET /H")) {
- digitalWrite(5, HIGH); // GET /H turns the LED on
- }
- if (currentLine.endsWith("GET /L")) {
- digitalWrite(5, LOW); // GET /L turns the LED off
- }
- }
- }
- // close the connection:
- client.stop();
- Serial.println("Client Disconnected.");
- }
- }
这里一开始连接不上
原因是:设备被我用手机禁用
还有的可能原因:热点应该设置为2.4不然连不上
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