auckenox/TM1637_ wemos_d1_mini_webserver.ino

## TM1637_ wemos_d1_mini_webserver.ino
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <TM1637Display.h>
/*
thanks to:
https://github.com/avishorp/TM1637
http://www.esp8266learning.com/tm1637-7-segment-display-example.php
*/

// wifi data
const char* ssid = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";

// Module connection pins (Digital Pins)
const int CLK = D6; //Set the CLK pin connection to the display
const int DIO = D5; //Set the DIO pin connection to the display


ESP8266WebServer server(80);

const uint8_t SEG_DONE[] = {
  SEG_B | SEG_C | SEG_D | SEG_E | SEG_G,           // d
  SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F,   // O
  SEG_C | SEG_E | SEG_G,                           // n
  SEG_A | SEG_D | SEG_E | SEG_F | SEG_G            // E
  };

const uint8_t SEG_START[] = {
  SEG_A | SEG_F | SEG_G | SEG_C | SEG_D,            // S
  SEG_F | SEG_E | SEG_D | SEG_G,                    // t
  SEG_E | SEG_G,                                    // r
  SEG_F | SEG_E | SEG_D | SEG_G                     // t
  };

const uint8_t SEG_ON[] = {
  SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F,   // O
  SEG_C | SEG_E | SEG_G,                           // n
  0x0,                                             // segment inactive
  0x0                                              // segment inactive
  };

const uint8_t SEG_OFF[] = {
  SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F,   // O
  SEG_A | SEG_E | SEG_F | SEG_G,                   // F
  SEG_A | SEG_E | SEG_F | SEG_G,                   // F
  0x0                                              // segment inactive
  };

TM1637Display display(CLK, DIO);


void handleRoot() {
  server.send(200, "text/html", "<html><body>feel free to try these: <br><ul><li><a href='/num?value=1338' target='f1'>set NUM to 1338</a></li> <li><a href='/num?value=8620' target='f1'>set NUM to 8620</a></li> <li><a href='/txt?value=DONE' target='f1'>set TXT to DONE</a></li> <li><a href='/txt?value=START' target='f1'>set TXT to START</a></li> <li><a href='/txt?value=ON' target='f1'>set TXT to ON</a></li> <li><a href='/txt?value=OFF' target='f1'>set TXT to OFF</a></li> <li>brightness: <a href='/bri?value=1' target='f1'>1</a> - <a href='/bri?value=4' target='f1'>4</a> - <a href='/bri?value=7' target='f1'>7</a> </li></ul> <iframe name='f1' src='/txt?value=START'></iframe></body></html>");
}

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 (int i=0; i<server.args(); i++){
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);

}

void handle_brightness() {
  int new_bri = server.arg("value").toInt();
  Serial.print("handle_brightness "+new_bri);
  display.setBrightness(new_bri);
  server.send(200, "text/plain", String("changed brightness to ")+int(new_bri));
}

void handle_display_number() {
  int dispval = server.arg("value").toInt();
  Serial.print("handle_display_number "+dispval);
  display.showNumberDec(dispval);
  server.send(200, "text/plain", String("changed display to ")+int(dispval));
}

void handle_display_text() {
  String txt_val = server.arg("value");
  Serial.print("handle_display_text "+txt_val);
  int validTextvalue = 0;

  if(txt_val=="START") { display.setSegments(SEG_START);  validTextvalue=1;}
  if(txt_val=="DONE") { display.setSegments(SEG_DONE);    validTextvalue=1;}
  if(txt_val=="ON") { display.setSegments(SEG_ON);        validTextvalue=1;}
  if(txt_val=="OFF") { display.setSegments(SEG_OFF);      validTextvalue=1;}

  if(validTextvalue==1) {
    server.send(200, "text/plain", String("changed display text to ")+txt_val);
    }
  else
  {
    // invalid text was choosen
    server.send(200, "text/plain", String("unsupportet text: ")+txt_val+String(" please try: START, DONE, ON, OFF"));
   }

}

void setup(void){

  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.println("");


  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  if (MDNS.begin("esp8266")) {
    Serial.println("MDNS responder started");
  }


  server.on("/", handleRoot);
  server.on("/bri", handle_brightness);
  server.on("/num", handle_display_number);
  server.on("/txt", handle_display_text);


  // setting start values
  display.setBrightness(7); // set display to max brightness (from 1 to 7 where 7 is max brightness)
  display.setSegments(SEG_START);

  server.onNotFound(handleNotFound);

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

void loop(void){
  server.handleClient();
}
	#include <ESP8266WiFi.h>
	#include <WiFiClient.h>
	#include <ESP8266WebServer.h>
	#include <ESP8266mDNS.h>
	#include <TM1637Display.h>
	/*
	thanks to:
	https://github.com/avishorp/TM1637
	http://www.esp8266learning.com/tm1637-7-segment-display-example.php
	*/

	// wifi data
	const char* ssid = "YOUR_WIFI_SSID";
	const char* password = "YOUR_WIFI_PASSWORD";

	// Module connection pins (Digital Pins)
	const int CLK = D6; //Set the CLK pin connection to the display
	const int DIO = D5; //Set the DIO pin connection to the display


	ESP8266WebServer server(80);

	const uint8_t SEG_DONE[] = {
	SEG_B \| SEG_C \| SEG_D \| SEG_E \| SEG_G, // d
	SEG_A \| SEG_B \| SEG_C \| SEG_D \| SEG_E \| SEG_F, // O
	SEG_C \| SEG_E \| SEG_G, // n
	SEG_A \| SEG_D \| SEG_E \| SEG_F \| SEG_G // E
	};

	const uint8_t SEG_START[] = {
	SEG_A \| SEG_F \| SEG_G \| SEG_C \| SEG_D, // S
	SEG_F \| SEG_E \| SEG_D \| SEG_G, // t
	SEG_E \| SEG_G, // r
	SEG_F \| SEG_E \| SEG_D \| SEG_G // t
	};

	const uint8_t SEG_ON[] = {
	SEG_A \| SEG_B \| SEG_C \| SEG_D \| SEG_E \| SEG_F, // O
	SEG_C \| SEG_E \| SEG_G, // n
	0x0, // segment inactive
	0x0 // segment inactive
	};

	const uint8_t SEG_OFF[] = {
	SEG_A \| SEG_B \| SEG_C \| SEG_D \| SEG_E \| SEG_F, // O
	SEG_A \| SEG_E \| SEG_F \| SEG_G, // F
	SEG_A \| SEG_E \| SEG_F \| SEG_G, // F
	0x0 // segment inactive
	};

	TM1637Display display(CLK, DIO);


	void handleRoot() {
	server.send(200, "text/html", "<html><body>feel free to try these: <br><ul><li><a href='/num?value=1338' target='f1'>set NUM to 1338</a></li> <li><a href='/num?value=8620' target='f1'>set NUM to 8620</a></li> <li><a href='/txt?value=DONE' target='f1'>set TXT to DONE</a></li> <li><a href='/txt?value=START' target='f1'>set TXT to START</a></li> <li><a href='/txt?value=ON' target='f1'>set TXT to ON</a></li> <li><a href='/txt?value=OFF' target='f1'>set TXT to OFF</a></li> <li>brightness: <a href='/bri?value=1' target='f1'>1</a> - <a href='/bri?value=4' target='f1'>4</a> - <a href='/bri?value=7' target='f1'>7</a> </li></ul> <iframe name='f1' src='/txt?value=START'></iframe></body></html>");
	}

	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 (int i=0; i<server.args(); i++){
	message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
	}
	server.send(404, "text/plain", message);

	}

	void handle_brightness() {
	int new_bri = server.arg("value").toInt();
	Serial.print("handle_brightness "+new_bri);
	display.setBrightness(new_bri);
	server.send(200, "text/plain", String("changed brightness to ")+int(new_bri));
	}

	void handle_display_number() {
	int dispval = server.arg("value").toInt();
	Serial.print("handle_display_number "+dispval);
	display.showNumberDec(dispval);
	server.send(200, "text/plain", String("changed display to ")+int(dispval));
	}

	void handle_display_text() {
	String txt_val = server.arg("value");
	Serial.print("handle_display_text "+txt_val);
	int validTextvalue = 0;

	if(txt_val=="START") { display.setSegments(SEG_START); validTextvalue=1;}
	if(txt_val=="DONE") { display.setSegments(SEG_DONE); validTextvalue=1;}
	if(txt_val=="ON") { display.setSegments(SEG_ON); validTextvalue=1;}
	if(txt_val=="OFF") { display.setSegments(SEG_OFF); validTextvalue=1;}

	if(validTextvalue==1) {
	server.send(200, "text/plain", String("changed display text to ")+txt_val);
	}
	else
	{
	// invalid text was choosen
	server.send(200, "text/plain", String("unsupportet text: ")+txt_val+String(" please try: START, DONE, ON, OFF"));
	}

	}

	void setup(void){

	Serial.begin(115200);
	WiFi.begin(ssid, password);
	Serial.println("");


	// Wait for connection
	while (WiFi.status() != WL_CONNECTED) {
	delay(500);
	Serial.print(".");
	}
	Serial.println("");
	Serial.print("Connected to ");
	Serial.println(ssid);
	Serial.print("IP address: ");
	Serial.println(WiFi.localIP());

	if (MDNS.begin("esp8266")) {
	Serial.println("MDNS responder started");
	}


	server.on("/", handleRoot);
	server.on("/bri", handle_brightness);
	server.on("/num", handle_display_number);
	server.on("/txt", handle_display_text);


	// setting start values
	display.setBrightness(7); // set display to max brightness (from 1 to 7 where 7 is max brightness)
	display.setSegments(SEG_START);

	server.onNotFound(handleNotFound);

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

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