Serveri kood

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>

const char *ssid = "Peldik";
const char *password = "password";

ESP8266WebServer server(80);

void handleRoot() {
    server.send(200, "text/html", "<h1>Hello! from arduino-er!</h1>");
    digitalWrite(D4,HIGH);
}

char* htmlBody_help = "<h1>Help</h1><br/>\n"
  "Visit http://192.168.4.1/ to access web server.<br/>\n"
  "Visit http://192.168.4.1/help to access this page.<br/>\n";

void handleHelp(){
  server.send(200, "text/html", htmlBody_help);
  digitalWrite(D4, HIGH);
}

void handlePage(){

  server.send(200, "text/html", "<h1> Valjas</h1>");
  digitalWrite(D4, LOW);

}

void setup() {
    delay(200);
    Serial.begin(9600);
    Serial.println();

    WiFi.softAP(ssid, password);

    IPAddress apip = WiFi.softAPIP();
    Serial.print("visit: \n");
    Serial.println(apip);
    server.on("/", handleRoot);
    server.on("/help", handleHelp);
    server.on("/page", handlePage);
    server.begin();
    Serial.println("HTTP server üleval");
    pinMode(D4, OUTPUT);
}

void loop() {
    server.handleClient();
}



Klient


#include <Arduino.h>

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

#include <ESP8266HTTPClient.h>

#define USE_SERIAL Serial

ESP8266WiFiMulti WiFiMulti;


int buttonstate= 0;
const int buttonpin= 16;
void setup() {

    USE_SERIAL.begin(115200);
   // USE_SERIAL.setDebugOutput(true);

    USE_SERIAL.println();
    USE_SERIAL.println();
    USE_SERIAL.println();

    const int buttonpin= 16;
    pinMode(buttonpin, INPUT);


    int buttonstate= 0;

    for(uint8_t t = 4; t > 0; t--) {
        USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
        USE_SERIAL.flush();
        delay(200);
    }

    WiFiMulti.addAP("Peldik", "password");

}

void loop() {
    // wait for WiFi connection
    if((WiFiMulti.run() == WL_CONNECTED)) {

        HTTPClient http;

        USE_SERIAL.print("[HTTP] begin...\n");
        // configure traged server and url
        //http.begin("https://192.168.1.12/test.html", "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); //HTTPS


        USE_SERIAL.print("[HTTP] GET...\n");
        // start connection and send HTTP header
        int httpCode = http.GET();

        // httpCode will be negative on error
        if(httpCode > 0) {
            // HTTP header has been send and Server response header has been handled
            USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);
        /*    buttonstate = digitalRead(buttonpin);
            // file found at server
            if(httpCode == HTTP_CODE_OK) {
                String payload = http.getString();
                USE_SERIAL.println(payload);
             if(payload == "1"){
              digitalWrite(D4, HIGH);
              } else {
        digitalWrite(D4, LOW);
        }*/
        buttonstate= digitalRead(buttonpin);
        if(buttonstate == HIGH){
            http.begin("http://192.168.4.1/help");
        }
        if(buttonstate == LOW){
            http.begin("http://192.168.4.1/page");
        }} else {
            USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
        }

        http.end();
            }


     delay(200);
    }