//ESP32 Board
#include <WiFi.h>
// Replace with your network credentials
const char* ssid = "alex9ufo";
const char* password = "alex9981";
WiFiServer server(80);
const int led = 2 ; // the number of the LED pin
// Client variables
char linebuf[80];
int charcount=0;
void setup()
{
// initialize the LED as an output:
pinMode(led, OUTPUT);
//Initialize serial and wait for port to open:
Serial.begin(115200);
while(!Serial) {
}
// We start by connecting to a WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
// attempt to connect to Wifi network:
while(WiFi.status() != WL_CONNECTED)
{
// Connect to WPA/WPA2 network.
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
void loop()
{
// listen for incoming clients
WiFiClient client = server.available();
if (client)
{
Serial.println("New client");
memset(linebuf,0,sizeof(linebuf));
charcount=0;
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected())
{
if (client.available())
{
char c = client.read();
Serial.write(c);
//read char by char HTTP request
linebuf[charcount]=c;
if (charcount<sizeof(linebuf)-1) charcount++;
if (c == '\n' && currentLineIsBlank)
{
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println();
client.println("<!DOCTYPE HTML><html><head>");
client.println("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"></head>");
client.println("<h1>ESP32 - Web Server example</h1>");
client.println("<h1><p>LED <a href=\"on\"><button><h1>ON<h1></button></a> ");
client.println(" <a href=\"off\"><button><h1>OFF<h1></button></a></p></h1> ");
client.println("</html>");
break;
}
if (c == '\n')
{
// you're starting a new line
currentLineIsBlank = true;
if (strstr(linebuf,"GET /on") > 0)
{
Serial.println("LED ON");
digitalWrite(led, HIGH);
}
else if (strstr(linebuf,"GET /off") > 0)
{
Serial.println("LED OFF");
digitalWrite(led, LOW);
}
// you're starting a new line
currentLineIsBlank = true;
memset(linebuf,0,sizeof(linebuf));
charcount=0;
}
else if (c != '\r')
{
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disconnected");
}
}
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