lsongdev · August 16, 2017 15:27
diff --git a/esp8266-oled.ino b/esp8266-oled.ino
 #include <EEPROM.h>
 #include <SSD1306.h>
 #include <ESP8266mDNS.h>
 #include <ESP8266SSDP.h>
 #include <ESP8266WiFi.h>
 #include <ESP8266WebServer.h>

 #define BTN_UP    12 //GPIO 12 = D6
 #define BTN_DOWN  13 //GPIO 13 = D7
 #define BTN_OK    14 //GPIO 14 = D5
 #define BTN_FLASH 0  //GPIO 0  = FLASH BUTTON
 #define BTN_RESET 4
 #define LED_1     2
 #define LED_2     16

 const char *ssid     = "[email protected]";
 const char *password = "[email protected]";

 SSD1306 display(0x3c, D1, D2);
 ESP8266WebServer server(80);

 void setup() {

  pinMode(LED_1    , OUTPUT);
  pinMode(LED_2    , OUTPUT);
  pinMode(BTN_FLASH, INPUT);
  pinMode(BTN_RESET, INPUT_PULLUP);
  pinMode(BTN_DOWN , INPUT_PULLUP);
  pinMode(BTN_OK   , INPUT_PULLUP);
  pinMode(BTN_UP   , INPUT_PULLUP);
   //
  Serial.begin(115200);
  Serial.println("\nStarting...\n");
  //
  EEPROM.begin(4096);
  WiFi.mode(WIFI_STA);
  WiFi.begin (ssid, password);
  // Wait for connection
  while ( WiFi.status() != WL_CONNECTED ) {
    delay ( 500 );
    Serial.print ( "." );
  }

  server.on ( "/", handleRoot );
  server.on ( "/test.svg", drawGraph );
  server.on ( "/inline", []() {
    server.send ( 200, "text/plain", "this works as well" );
  } );
  server.on("/description.xml", HTTP_GET, [](){
    SSDP.schema(server.client());
  });
  server.onNotFound ( handleNotFound );
  server.begin();

  Serial.println ( "" );
  Serial.print ( "Connected to " );
  Serial.println ( ssid );
  Serial.print ( "IP address: " );
  Serial.println ( WiFi.localIP() );
  Serial.println ( "HTTP server started" );

  Serial.printf("Starting SSDP...\n");
  SSDP.setSchemaURL("description.xml");
  SSDP.setHTTPPort(80);
  SSDP.setName("Philips hue clone");
  SSDP.setSerialNumber("001788102201");
  SSDP.setURL("index.html");
  SSDP.setModelName("Philips hue bridge 2012");
  SSDP.setModelNumber("929000226503");
  SSDP.setModelURL("http://www.meethue.com");
  SSDP.setManufacturer("Royal Philips Electronics");
  SSDP.setManufacturerURL("http://www.philips.com");
  SSDP.begin();

  display.init();
  display.flipScreenVertically();
  display.setContrast(255);
    // Align text vertical/horizontal center
  display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH);
  display.setFont(ArialMT_Plain_10);
  display.drawString(DISPLAY_WIDTH/2, DISPLAY_HEIGHT/2, "Hello world\n" + WiFi.localIP().toString());
  display.display();
 }

 void loop() {
  server.handleClient();
  
  if(Serial.available()){
    String input = Serial.readString();
  }

  if(LOW == digitalRead(BTN_OK)){
    Serial.println ( "OK" );
  }

  digitalWrite(LED_2, digitalRead(BTN_OK));
 }


 void handleRoot() {
  digitalWrite (LED_1, HIGH);
  char temp[400];
  int sec = millis() / 1000;
  int min = sec / 60;
  int hr  = min / 60;
  snprintf ( temp, 400,
    "<html>\
      <head>\
        <meta http-equiv='refresh' content='5'/>\
        <title>ESP8266 Demo</title>\
        <style>\
          body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
        </style>\
      </head>\
      <body>\
        <h1>Hello from ESP8266!</h1>\
        <p>Uptime: %02d:%02d:%02d</p>\
        <img src=\"/test.svg\" />\
      </body>\
    </html>", hr, min % 60, sec % 60
  );
  server.send ( 200, "text/html", temp );
  digitalWrite (LED_1, LOW);
 }

 void drawGraph() {
  String out = "";
  char temp[100];
  out += "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" width=\"400\" height=\"150\">\n";
  out += "<rect width=\"400\" height=\"150\" fill=\"rgb(250, 230, 210)\" stroke-width=\"1\" stroke=\"rgb(0, 0, 0)\" />\n";
  out += "<g stroke=\"black\">\n";
  int y = rand() % 130;
  for (int x = 10; x < 390; x+= 10) {
    int y2 = rand() % 130;
    sprintf(temp, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" stroke-width=\"1\" />\n", x, 140 - y, x + 10, 140 - y2);
    out += temp;
    y = y2;
  }
  out += "</g>\n</svg>\n";

  server.send ( 200, "image/svg+xml", out);
 }

 void handleNotFound() {
  digitalWrite ( LED_1, HIGH );
  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_1, LOW );
 }
	#include <EEPROM.h>
	#include <SSD1306.h>
	#include <ESP8266mDNS.h>
	#include <ESP8266SSDP.h>
	#include <ESP8266WiFi.h>
	#include <ESP8266WebServer.h>

	#define BTN_UP 12 //GPIO 12 = D6
	#define BTN_DOWN 13 //GPIO 13 = D7
	#define BTN_OK 14 //GPIO 14 = D5
	#define BTN_FLASH 0 //GPIO 0 = FLASH BUTTON
	#define BTN_RESET 4
	#define LED_1 2
	#define LED_2 16

	const char *ssid = "[email protected]";
	const char *password = "[email protected]";

	SSD1306 display(0x3c, D1, D2);
	ESP8266WebServer server(80);

	void setup() {

	pinMode(LED_1 , OUTPUT);
	pinMode(LED_2 , OUTPUT);
	pinMode(BTN_FLASH, INPUT);
	pinMode(BTN_RESET, INPUT_PULLUP);
	pinMode(BTN_DOWN , INPUT_PULLUP);
	pinMode(BTN_OK , INPUT_PULLUP);
	pinMode(BTN_UP , INPUT_PULLUP);
	//
	Serial.begin(115200);
	Serial.println("\nStarting...\n");
	//
	EEPROM.begin(4096);
	WiFi.mode(WIFI_STA);
	WiFi.begin (ssid, password);
	// Wait for connection
	while ( WiFi.status() != WL_CONNECTED ) {
	delay ( 500 );
	Serial.print ( "." );
	}

	server.on ( "/", handleRoot );
	server.on ( "/test.svg", drawGraph );
	server.on ( "/inline", []() {
	server.send ( 200, "text/plain", "this works as well" );
	} );
	server.on("/description.xml", HTTP_GET, [](){
	SSDP.schema(server.client());
	});
	server.onNotFound ( handleNotFound );
	server.begin();

	Serial.println ( "" );
	Serial.print ( "Connected to " );
	Serial.println ( ssid );
	Serial.print ( "IP address: " );
	Serial.println ( WiFi.localIP() );
	Serial.println ( "HTTP server started" );

	Serial.printf("Starting SSDP...\n");
	SSDP.setSchemaURL("description.xml");
	SSDP.setHTTPPort(80);
	SSDP.setName("Philips hue clone");
	SSDP.setSerialNumber("001788102201");
	SSDP.setURL("index.html");
	SSDP.setModelName("Philips hue bridge 2012");
	SSDP.setModelNumber("929000226503");
	SSDP.setModelURL("http://www.meethue.com");
	SSDP.setManufacturer("Royal Philips Electronics");
	SSDP.setManufacturerURL("http://www.philips.com");
	SSDP.begin();

	display.init();
	display.flipScreenVertically();
	display.setContrast(255);
	// Align text vertical/horizontal center
	display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH);
	display.setFont(ArialMT_Plain_10);
	display.drawString(DISPLAY_WIDTH/2, DISPLAY_HEIGHT/2, "Hello world\n" + WiFi.localIP().toString());
	display.display();
	}

	void loop() {
	server.handleClient();

	if(Serial.available()){
	String input = Serial.readString();
	}

	if(LOW == digitalRead(BTN_OK)){
	Serial.println ( "OK" );
	}

	digitalWrite(LED_2, digitalRead(BTN_OK));
	}


	void handleRoot() {
	digitalWrite (LED_1, HIGH);
	char temp[400];
	int sec = millis() / 1000;
	int min = sec / 60;
	int hr = min / 60;
	snprintf ( temp, 400,
	"<html>\
	<head>\
	<meta http-equiv='refresh' content='5'/>\
	<title>ESP8266 Demo</title>\
	<style>\
	body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
	</style>\
	</head>\
	<body>\
	<h1>Hello from ESP8266!</h1>\
	<p>Uptime: %02d:%02d:%02d</p>\
	<img src=\"/test.svg\" />\
	</body>\
	</html>", hr, min % 60, sec % 60
	);
	server.send ( 200, "text/html", temp );
	digitalWrite (LED_1, LOW);
	}

	void drawGraph() {
	String out = "";
	char temp[100];
	out += "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" width=\"400\" height=\"150\">\n";
	out += "<rect width=\"400\" height=\"150\" fill=\"rgb(250, 230, 210)\" stroke-width=\"1\" stroke=\"rgb(0, 0, 0)\" />\n";
	out += "<g stroke=\"black\">\n";
	int y = rand() % 130;
	for (int x = 10; x < 390; x+= 10) {
	int y2 = rand() % 130;
	sprintf(temp, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" stroke-width=\"1\" />\n", x, 140 - y, x + 10, 140 - y2);
	out += temp;
	y = y2;
	}
	out += "</g>\n</svg>\n";

	server.send ( 200, "image/svg+xml", out);
	}

	void handleNotFound() {
	digitalWrite ( LED_1, HIGH );
	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_1, LOW );
	}