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Potrzebna mała pomoc
#1
Witam 
jesli mógł bym was prosić o pomoc potrzebuje aby moje nodemcu pracowało nastepująco: 
po wciśnięciu przycisku On na stronie: przekaźnik włącza się na sekunde po czym wraca do pozycji OFF

czy pomógł by mi ktoś dopisać tą część kodu bo teraz działa ON.OFF gdzie samemu trzeba klikać. 
 
Z góry bardzo dziękuje.. 

Mam taki kod:

Kod:
// ESP8266 Web Server Example
// Target Hardware:  esp8266 NodeMCU
//
// Creates a web server over wifi and allows controlling an led and relay
// while also displaying temperature and humidity data from an SHT-21 sensor.
//
// NodeMCU Pins
//    SCL:    D1   
//    SDA:    D2
//    LED:    D3
//    Relay:  D5
//
// Required libraries and board files:
//    esp8266        install from boards manager
//    SHT21          https://github.com/markbeee/SHT21
//
// Gadget Reboot

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include "SHT21.h"

ESP8266WebServer server(80);            // create webserver object to listen for HTTP requests on port 80
SHT21 SHT21;                            // create i2c temperature/humidity sensor object

const char* ssid     = "ssid";         // wifi credentials
const char* password = "password";

#define     ledPin     D3
#define     relayPin   D5

String      htmlPage;                   // webpage text to be sent out by server when main page is accessed

void setup() {
  Serial.begin(9600);

  SHT21.begin();                        // init temp/humidity sensor

  digitalWrite(ledPin, LOW);            // led is off initially
  pinMode(ledPin, OUTPUT);

  digitalWrite(relayPin, HIGH);         // relay is not energized initially (active low)
  pinMode(relayPin, OUTPUT);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to WiFi...");
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();                    // disconnect if previously connected
  delay(100);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.println("WiFi connected.");
  Serial.print("IP: ");
  Serial.println(WiFi.localIP());

  // functions to call when client requests are received
  server.on("/", handleRoot);     
  server.on("/LEDTOGGLE", handleLEDToggle); 
  server.on("/LEDON", handleLEDOn);
  server.on("/LEDOFF", handleLEDOff);
  server.on("/RELAYTOGGLE", handleRelayToggle); 
  server.on("/RELAYON", handleRelayOn);
  server.on("/RELAYOFF", handleRelayOff);
  server.onNotFound(handleNotFound);       

  server.begin();                           // start web server
  Serial.println("HTTP server started");
}

void loop(void) {
  server.handleClient();                    // listen for HTTP requests from clients
}


// client request handling functions

// send main web page when ip+"/" is accessed
void handleRoot() {
  buildHtmlPage();
  server.send(200, "text/html", htmlPage);
}

// toggle led and redirect to main page
void handleLEDToggle() {                         
  digitalWrite(ledPin, !digitalRead(ledPin));     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// turn led on and redirect to main page
void handleLEDOn() {                         
  digitalWrite(ledPin, HIGH);     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// turn led off and redirect to main page
void handleLEDOff() {                         
  digitalWrite(ledPin, LOW);     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// toggle relay and redirect to main page
void handleRelayToggle() {                         
  digitalWrite(relayPin, !digitalRead(relayPin));     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// turn relay on and redirect to main page
void handleRelayOn() {                         
  digitalWrite(relayPin, LOW);     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// turn relay off and redirect to main page
void handleRelayOff() {                         
  digitalWrite(relayPin, HIGH);     
  server.sendHeader("Location", "/");       
  server.send(303);                         
}

// send HTTP status 404: Not Found when there's no handler for the client request
void handleNotFound() {
  server.send(404, "text/plain", "404: Not found");
}

// create the html page for the root path of the web server
void buildHtmlPage() {
  htmlPage = "<!DOCTYPE html>";
  htmlPage += "<html>";
  htmlPage += "<head>";                                        // header section
  htmlPage += "<title>ESP8266 Web Server</title>";             // title for browser window
  htmlPage += "<meta http-equiv=\"refresh\" content=\"10\">";  // auto-refresh the page every 10 seconds to show new data
  htmlPage += "<meta charset=\"UTF-8\">";                      // UTF-8 allows the degree symbol to display correctly
  htmlPage += "</head>";
 
  htmlPage += "<BODY bgcolor='#E0E0D0'>";                      // body section, set background color

  // retrieve temperature/humidity from sensor to display on main page
  htmlPage += "<br>Temperature °C: " + String(SHT21.getTemperature());
  htmlPage += "<br>Humidity   %RH: " + String(SHT21.getHumidity());
  htmlPage += "<br>";

  // show led status and action buttons
  String ledState = ((digitalRead(ledPin)) ? "on" : "off");
  htmlPage += "<br>LED: " + ledState;
  htmlPage += "<form action=\"/LEDON\" method=\"POST\"><input type=\"submit\" value=\"LED On\"></form>";
  htmlPage += "<form action=\"/LEDOFF\" method=\"POST\"><input type=\"submit\" value=\"LED Off\"></form>";
  htmlPage += "<form action=\"/LEDTOGGLE\" method=\"POST\"><input type=\"submit\" value=\"Toggle LED\"></form>";

  // show relay status and action buttons
  String relayState = ((!digitalRead(relayPin)) ? "on" : "off");
  htmlPage += "<br>Relay: " + relayState;
  htmlPage += "<form action=\"/RELAYON\" method=\"POST\"><input type=\"submit\" value=\"Relay On\"></form>";
  htmlPage += "<form action=\"/RELAYOFF\" method=\"POST\"><input type=\"submit\" value=\"Relay Off\"></form>";
  htmlPage += "<form action=\"/RELAYTOGGLE\" method=\"POST\"><input type=\"submit\" value=\"Toggle Relay\"></form>";

  htmlPage += "</body>";
  htmlPage += "</html>";
}
 
Odpowiedź
#2
A cos takiego:
/*********
Kamil Tekieli
Complete project details at http://pszczelnik.pl
*********/

// Load Wi-Fi library
#include <ESP8266WiFi.h>

// Replace with your network credentials
const char* ssid = "xx";
const char* password = "xx";

// Set web server port number to 8090
WiFiServer server(8090);

// Variable to store the HTTP request
String header;

// Auxiliar variables to store the current output state
String btState = "off";


// przypisane piny na nodemcu
const int bt = 5;

// Current time
unsigned long currentTime = millis();
// Previous time
unsigned long previousTime = 0;
// Define timeout time in milliseconds (example: 2000ms = 2s)
const long timeoutTime = 2000;

void setup() {
Serial.begin(115200);
// Initialize the output variables as outputs
pinMode(bt, OUTPUT);
// Set outputs to LOW
digitalWrite(bt, LOW);


// Connect to Wi-Fi network with SSID and password
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
// Print local IP address and start web server
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 a new client connects,
Serial.println("New Client."); // print a message out in the serial port
String currentLine = ""; // make a String to hold incoming data from the client
currentTime = millis();
previousTime = currentTime;
while (client.connected() && currentTime - previousTime <= timeoutTime) { // loop while the client's connected
currentTime = millis();
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write©; // print it out the serial monitor
header += c;
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("Connection: close");
client.println();

// turns the GPIOs on and off
if (header.indexOf("GET /brama/on") >= 0) {
Serial.println("GPIO 5 on");
btState = "on";
digitalWrite(bt, HIGH);
delay(1000);
} else if ( btState == "on") {
Serial.println("GPIO 5 off");
btState = "off";
digitalWrite(bt, LOW);
}

// Display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
// CSS to style the on/off buttons
// Feel free to change the background-color and font-size attributes to fit your preferences
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #77878A;}</style></head>");

// Web Page Heading
client.println("<body><h1>ESP8266 Web Server</h1>");

// Display current state, and ON/OFF buttons for GPIO 5
client.println("<p>GPIO 5 - State " + btState + "</p>");
// If the output5State is off, it displays the ON button
if (btState=="off") {
client.println("<p><a href=\"/brama/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/brama/off\"><button class=\"button button2\">OFF</button></a></p>");
}
client.println("</body></html>");

// 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
}
}
}
// Clear the header variable
header = "";
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
}
 
Odpowiedź
  


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