งานที่11

NodeMCU Esp8266 เปิดปิดไฟควบคุมผ่าน App มือถือ

include <ESP8266WiFi.h>
	#include <Wire.h>
	#include <LiquidCrystal_I2C.h>
	LiquidCrystal_I2C lcd(0x3f, 16, 02);
	const char* ssid = "9arduino"; // ชื่อ SSID Wifi
	const char* password = "1234567890"; // รหัส Password Wifi
	WiFiServer server(80);
	int val1 = 1;
	int val2 = 1;
	int val3 = 1;
	int val4 = 1;
	void setup() {
	Serial.begin(9600);
	delay(10);
	lcd.begin();
	lcd.backlight();
	lcd.print("Server Off..");
	lcd.setCursor(0, 1);
	pinMode(D0, OUTPUT);
	pinMode(D5, OUTPUT);
	pinMode(D6, OUTPUT);
	pinMode(D7, OUTPUT);
	digitalWrite(D0, 1);
	digitalWrite(D5, 1);
	digitalWrite(D6, 1);
	digitalWrite(D7, 1);
	// 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");
	lcd.clear();
	lcd.print("Server On IP :");
	lcd.setCursor(0, 1);
	// Print the IP address
	Serial.println(WiFi.localIP());
	lcd.print(WiFi.localIP()); // แสดง IP ผ่านจอ
	lcd.setCursor(0, 2);
	}
	void loop() {
	// Check if a client has connected
	WiFiClient client = server.available();
	if (!client) {
	return;
	}
	Serial.println("new client");
	while(!client.available()){
	delay(1);
	}
	// Read the first line of the request
	String req = client.readStringUntil('\r');
	Serial.println(req);
	client.flush();
	// Match the request
	// ch1
	if (req.indexOf("/?ch1=0") != -1)
	val1 = 1;
	else if (req.indexOf("/?ch1=1") != -1)
	val1 = 0;
	// ch2
	else if (req.indexOf("/?ch2=0") != -1)
	val2 = 1;
	else if (req.indexOf("/?ch2=1") != -1)
	val2 = 0;
	// ch3
	else if (req.indexOf("/?ch3=0") != -1)
	val3 = 1;
	else if (req.indexOf("/?ch3=1") != -1)
	val3 = 0;
	// ch4
	else if (req.indexOf("/?ch4=0") != -1)
	val4 = 1;
	else if (req.indexOf("/?ch4=1") != -1)
	val4 = 0;
	else {
	Serial.println("invalid request");
	client.stop();
	return;
	}
	// Set GPIO2 according to the request
	digitalWrite(D0, val1);
	digitalWrite(D5, val2);
	digitalWrite(D6, val3);
	digitalWrite(D7, val4);
	client.flush();
	// Prepare the response
	String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n\r\n\r\nGPIO is now ";
	s += "\n";
	client.print(s);
	delay(1);
	Serial.println("Client disonnected");
	}