li2hub/C003U5P1_ESP8266_AP_STA.ino

## C003U5P1_ESP8266_AP_STA.ino
/****Libraries required****/
#include <ESP8266WiFi.h>      //ESP8266 main library
#include <ESP8266WebServer.h> //Library to handle Web Server commands

const char *ssid = "ESP8266";       //Name of the Access Point
const char *password = "12345678";  //Password of the Access Point

/****Define a web server at port 80 for HTTP****/
ESP8266WebServer server(80);  // Use port 443 for HTTPS

/****Let's include a custom (static) IP****/
IPAddress    apIP(1,3,5,7); //You can use your own numbers for the IP

/****An LED is connected to NodeMCU pin D1 (ESP8266 GPIO5) via a 3.3K Ohm resistor****/
const int ledPin = D1;

bool ledState = false;

void setup() {
  pinMode ( ledPin, OUTPUT );
  digitalWrite ( ledPin, 0 );
  delay(1000);
  Serial.begin(115200);
  Serial.println();
  Serial.println("Configuring access point...");

  WiFi.mode(WIFI_AP_STA);
  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));   // subnet FF FF FF 00

  WiFi.softAP(ssid, password); // Use Wifi.softAP(ssid) if you want an unprotected Access Point

  IPAddress myIP = WiFi.softAPIP();
  Serial.print("AP IP address: ");
  Serial.println(myIP);


  //The following commands tell the ESP which sub-routines to follow when a particular request is received
  server.on ( "/", handleRoot );
  server.on ( "/led=1", handleRoot);
  server.on ( "/led=0", handleRoot);
  server.onNotFound ( handleNotFound );

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

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


void handleRoot() {
  digitalWrite (ledPin, server.arg("led").toInt());
  ledState = digitalRead(ledPin);

 /* Dynamically generate the LED toggle link, based on its current state (on or off)*/
  char ledText[80];

  if (ledState) {
    strcpy(ledText, "LED is on. <a href=\"/?led=0\">Turn it OFF!</a>");
  }

  else {
    strcpy(ledText, "LED is OFF. <a href=\"/?led=1\">Turn it ON!</a>");
  }

  ledState = digitalRead(ledPin);

  char html[1000];
  int sec = millis() / 1000;
  int min = sec / 60;
  int hr = min / 60;

  int proximity = analogRead(A0);
  proximity = (int)(proximity)*100 / 1024; //converting the 0-1024 value to a percentage value


/****Build an HTML page to display on the web-server root address****/
  snprintf ( html, 1000,
"<html>\
  <head>\
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>\
    <meta http-equiv='refresh' content='5'/>\
    <title>ESP8266 WiFi Network</title>\
    <style>\
      body { background-color:#FFFFFF; font-family: Bookman; font-size: 1.5em;  Color:#000000; }\
      h1 { Color: #000000; }\
    </style>\
  </head>\
  <body>\
    <h1><center>ESP8266 Wi-Fi Demo</center></h1>\
    <p><center>Uptime: %02d:%02d:%02d</center></p>\
    <p><center>Proximity: %d %</center></p>\
    <p><center>%s</center><p>\
    <p><center>This page refreshes every 5 seconds. Click <a href=\"javascript:window.location.reload();\">here</a> to refresh the page now.</center></p>\
  </body>\
</html>",

    hr, min % 60, sec % 60,
    proximity,
    ledText
  );
  server.send ( 200, "text/html", html );
}

//This function handles unknown requests
void handleNotFound() {
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += ( server.method() == HTTP_GET ) ? "GET" : "POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";

  for ( uint8_t i = 0; i < server.args(); i++ ) {
    message += " " + server.argName ( i ) + ": " + server.arg ( i ) + "\n";
  }

  server.send ( 404, "text/plain", message );
  digitalWrite ( LED_BUILTIN, 1 ); //turn the built in LED on pin DO of NodeMCU off
}
	/**Libraries required**/
	#include <ESP8266WiFi.h> //ESP8266 main library
	#include <ESP8266WebServer.h> //Library to handle Web Server commands

	const char *ssid = "ESP8266"; //Name of the Access Point
	const char *password = "12345678"; //Password of the Access Point

	/**Define a web server at port 80 for HTTP**/
	ESP8266WebServer server(80); // Use port 443 for HTTPS

	/**Let's include a custom (static) IP**/
	IPAddress apIP(1,3,5,7); //You can use your own numbers for the IP

	/**An LED is connected to NodeMCU pin D1 (ESP8266 GPIO5) via a 3.3K Ohm resistor**/
	const int ledPin = D1;

	bool ledState = false;

	void setup() {
	pinMode ( ledPin, OUTPUT );
	digitalWrite ( ledPin, 0 );
	delay(1000);
	Serial.begin(115200);
	Serial.println();
	Serial.println("Configuring access point...");

	WiFi.mode(WIFI_AP_STA);
	WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0)); // subnet FF FF FF 00

	WiFi.softAP(ssid, password); // Use Wifi.softAP(ssid) if you want an unprotected Access Point

	IPAddress myIP = WiFi.softAPIP();
	Serial.print("AP IP address: ");
	Serial.println(myIP);


	//The following commands tell the ESP which sub-routines to follow when a particular request is received
	server.on ( "/", handleRoot );
	server.on ( "/led=1", handleRoot);
	server.on ( "/led=0", handleRoot);
	server.onNotFound ( handleNotFound );

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

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


	void handleRoot() {
	digitalWrite (ledPin, server.arg("led").toInt());
	ledState = digitalRead(ledPin);

	/* Dynamically generate the LED toggle link, based on its current state (on or off)*/
	char ledText[80];

	if (ledState) {
	strcpy(ledText, "LED is on. <a href=\"/?led=0\">Turn it OFF!</a>");
	}

	else {
	strcpy(ledText, "LED is OFF. <a href=\"/?led=1\">Turn it ON!</a>");
	}

	ledState = digitalRead(ledPin);

	char html[1000];
	int sec = millis() / 1000;
	int min = sec / 60;
	int hr = min / 60;

	int proximity = analogRead(A0);
	proximity = (int)(proximity)*100 / 1024; //converting the 0-1024 value to a percentage value


	/**Build an HTML page to display on the web-server root address**/
	snprintf ( html, 1000,
	"<html>\
	<head>\
	<meta name='viewport' content='width=device-width, initial-scale=1.0'>\
	<meta http-equiv='refresh' content='5'/>\
	<title>ESP8266 WiFi Network</title>\
	<style>\
	body { background-color:#FFFFFF; font-family: Bookman; font-size: 1.5em; Color:#000000; }\
	h1 { Color: #000000; }\
	</style>\
	</head>\
	<body>\
	<h1><center>ESP8266 Wi-Fi Demo</center></h1>\
	<p><center>Uptime: %02d:%02d:%02d</center></p>\
	<p><center>Proximity: %d %</center></p>\
	<p><center>%s</center><p>\
	<p><center>This page refreshes every 5 seconds. Click <a href=\"javascript:window.location.reload();\">here</a> to refresh the page now.</center></p>\
	</body>\
	</html>",

	hr, min % 60, sec % 60,
	proximity,
	ledText
	);
	server.send ( 200, "text/html", html );
	}

	//This function handles unknown requests
	void handleNotFound() {
	String message = "File Not Found\n\n";
	message += "URI: ";
	message += server.uri();
	message += "\nMethod: ";
	message += ( server.method() == HTTP_GET ) ? "GET" : "POST";
	message += "\nArguments: ";
	message += server.args();
	message += "\n";

	for ( uint8_t i = 0; i < server.args(); i++ ) {
	message += " " + server.argName ( i ) + ": " + server.arg ( i ) + "\n";
	}

	server.send ( 404, "text/plain", message );
	digitalWrite ( LED_BUILTIN, 1 ); //turn the built in LED on pin DO of NodeMCU off
	}