// Example 1: blink the on-board user LED (GPIO 2)
// Wiring: nothing to connect - just the USB-C data cable
const int LED_PIN = 2;          // on-board LED next to the "D2" label
const int BLINK_MS = 1000;      // ✏️ you can change this (time in milliseconds)

void setup() {
  Serial.begin(115200);         // 115200 = the speed the board talks to your computer
  delay(500);                   // give the Serial Monitor a moment to connect
  pinMode(LED_PIN, OUTPUT);
  Serial.println("OK - epartners.co.nz test");   // printed once at start-up
}

void loop() {
  digitalWrite(LED_PIN, HIGH);  // LED on
  Serial.println("LED on");
  delay(BLINK_MS);

  digitalWrite(LED_PIN, LOW);   // LED off
  Serial.println("LED off");
  delay(BLINK_MS);
}

// Example 2: switch the on-board LED from a web page
// Wiring: nothing to connect - uses the on-board LED on GPIO 2
#include <WiFi.h>
#include <WebServer.h>

const char* ssid     = "YOUR_WIFI_NAME";      // ✏️ your 2.4 GHz network name
const char* password = "YOUR_WIFI_PASSWORD";  // ✏️ your Wi-Fi password

const int LED_PIN = 2;          // on-board LED
bool ledOn = false;

WebServer server(80);           // port 80 = normal web pages

String page() {
  String html = "<!DOCTYPE html><html><head>";
  html += "<meta name='viewport' content='width=device-width, initial-scale=1'>";
  html += "<title>ESP32 LED</title></head><body style='font-family:sans-serif;text-align:center'>";
  html += "<h1>ESP32 LED is ";
  html += ledOn ? "ON" : "OFF";
  html += "</h1><p><a href='/on'><button>ON</button></a> ";
  html += "<a href='/off'><button>OFF</button></a></p></body></html>";
  return html;
}

void handleRoot() { server.send(200, "text/html", page()); }

void handleOn() {
  ledOn = true;
  digitalWrite(LED_PIN, HIGH);
  server.send(200, "text/html", page());
}

void handleOff() {
  ledOn = false;
  digitalWrite(LED_PIN, LOW);
  server.send(200, "text/html", page());
}

void setup() {
  Serial.begin(115200);
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);

  WiFi.mode(WIFI_STA);          // join your router as a normal device
  WiFi.begin(ssid, password);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.print("Open http://");
  Serial.println(WiFi.localIP());  // type this address into your browser

  server.on("/", handleRoot);
  server.on("/on", handleOn);
  server.on("/off", handleOff);
  server.begin();
}

void loop() {
  server.handleClient();        // answer browser requests
}