I just downloaded iTunes from an apple web site. Try Download and use iTunes for Windows 10 - Apple Support , I took a more convoluted route but this seems to be a good place to try. I have Windows 8.1, so used the Windows 8 version. I downloaded and installed iTunes and then the name resolution "just worked". I then removed the other pieces described since I have no interest in iTunes or other Apple apps.
Here is a sample sketch that uses a web interface to control a blinking led. You can ignore most of the stuff unrelated to mDNS. The parts of interest to you are lines 24, 153-164, 174, 192. They are mostly copied from the mDNS_Web_Server example.
/* ***********************************************************************************************
*
* oldcurmudgeon November 6 2021
*
* This sketch is for an ESP8266 to provide a web interface for blinking an LED
*
* The onboard LED is used so no additional hardware is needed
*
* It is implemented as 2 state machines. The first has the state defined by the pattern
* being run. The state is defined by currentPattern. The state transition is done via
* a browser request changing newState to define the next state.
*
* The second state machine defines the step in the pattern of blinks. The state transition
* occurs when the current time for the LED state expires. When the time is up the LED toggles
* to the other state and the time for that state starts. At the end of the pattern it is
* started over from the beginning.
*
*************************************************************************************************/
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
const char* ssid = "your_ssid";
const char* password = "your_pw";
ESP8266WebServer server(80);
#include <string.h>
#include <Streaming.h> // from "Streaming by Mikal Hart" in library manager
// Pattern selection state machine variables
volatile uint16_t newPattern = 0; //default to first pattern volatile because it is set asynchronously
uint16_t currentPattern = 0; // default first pattern
// Pattern step state machine variables
byte step = 0; // current step in pattern default to start
unsigned long currentTime; // current time for test
unsigned long startTime; // start time of this step
// led on state - the onboard led is active low (when the pin is low the led
// is on). If you are using some other pin to drive the led so that the led is on when
// the pin is high this should be changed to one.
const byte LED_ON = 0;
byte ledState = LED_ON; // current led state default on
// led patterns - this is a series of numbers defining the led on and off times
// This example is 4 patterns of 6 changes. A zero before the end of the pattern
// indicates a short pattern that restarts when it detects a zero.
const byte NUM_PATTERNS = 4; // number of patterns
const byte PATTERN_LEN = 6; // pattern length
const unsigned long pattern[ NUM_PATTERNS][PATTERN_LEN] =
{{200,200,200,200,200,200},
{1500,1500,1500,1500,1500,01500},
{1500,1500,200,200,0,0}, // short pattern example
{1500,1500,1500,1500,200,200}};
/* ***************************************************************************
*
* Handle root web page
*
******************************************************************************/
void handleRoot() {
if (server.hasArg("pattern")){ // the browser has sent a response
// Save new value from web page browser response
newPattern = server.arg("pattern").toInt();
}
/* Build html page
*
* The new lines (\n) are not required by the browser - they are formatting for a human
* looking at the page source on the browser
*
* The "String((newPattern == x) ? " checked" : " ")" construct is used to set the
* pattern selected as checked when the web page is refreshed. If newPage is equal to
* the value "checked" is added to the attributes, otherwise a blank is added. You can
* see the result on the web page by right-click then select "View Page Source".
* This will show the actual HTML sent to the browser.
*/
String htmlPage =
String("<!DOCTYPE HTML>\n")
+ "<html lang='en'>\n"
+ "<head>\n"
+ "<!-- Ignore request for nonexistent favicon -->\n"
+ "<link rel='icon' href='data:,'>\n"
+ " <meta name='viewport' content='width=device-width, initial-scale=1.0'>"
+"</head>\n"
+ "<body>\n\n"
+ "<h1 style='text-align: center;'>LED Pattern Blinker</h1>\n"
+ "<div>\n"
+ "<form style='font-size: 20px'>\n"
+ " <input type='radio' name='pattern' value='0' required"
+ String((newPattern == 0) ? " checked" : " ")
+ " > Short blink<br>\n"
+ " <input type='radio' name='pattern' value='1' required"
+ String((newPattern == 1) ? " checked" : " ")
+ "> Long blink<br>\n"
+ " <input type='radio' name='pattern' value='2' required"
+ String((newPattern == 2) ? " checked" : " ")
+ "> Long Short blink <br>\n"
+ " <input type='radio' name='pattern' value='3' required"
+ String((newPattern == 3) ? " checked" : " ")
+ "> Long Long Short blink<br>\n"
+ "<input type='submit' value='Set Pattern'>\n"
+ "</div>\n"
+"</body>\n</html>\n";
server.send(200, "text/html",htmlPage);
}
void handleNotFound() {
// no clue what they sent
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);
}
void setup() {
pinMode(LED_BUILTIN,OUTPUT);
Serial.begin(19200);
// Set up WiFi network
WiFi.mode(WIFI_STA);
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());
// Set up mDNS responder:
// - first argument is the domain name, in this example
// the fully-qualified domain name is "esp8266.local"
// - second argument is the IP address to advertise
// we send our IP address on the WiFi network
if (!MDNS.begin("esp8266")) {
Serial.println("Error setting up MDNS responder!");
while (1) {
delay(1000);
}
}
Serial.println("mDNS responder started");
server.on("/", handleRoot);
server.onNotFound(handleNotFound);
// Start the server
server.begin();
Serial.println("TCP server started");
// Add service to MDNS-SD
MDNS.addService("http", "tcp", 80);
startTime = millis(); // get current time for start of pattern
}
void checkPattern() {
if (newPattern != currentPattern){ // browser has sent a new pattern
// switch to new pattern
ledState = LED_ON; // start with led on
digitalWrite(LED_BUILTIN,ledState); // start with led on
step = 0; // start at beginning of pattern
currentPattern = newPattern; // switch to new pattern
startTime = millis(); // get current time for start of pattern
}
};
void loop() {
MDNS.update();
server.handleClient(); // check for connection request
// Check to see if there is a new pattern request. If the check is done here
// the new pattern starts immediately. If you want the new pattern to start
// after the current pattern has completed, comment out the line below and uncomment
// the one in the end of pattern processing
checkPattern();
currentTime = millis(); // get current time for compare
if (currentTime - startTime > pattern[currentPattern][step]) {
// done with this step
ledState ^= 1; // toggle led state
digitalWrite(LED_BUILTIN,ledState); // change led state
step++; // next step
startTime = currentTime; // start next led pattern step time
if ((step >= PATTERN_LEN) // end of pattern
|| (pattern[currentPattern][step]==0)){ // or short pattern
// end of pattern processing
step = 0; //restart pattern
// Check to see if there is a new pattern request. If the check
// is done here the new pattern starts after the current pattern
// has completed. (Remember to comment out the call above.)
// checkPattern();
}
}
}
