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Feb 25,2025

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CIRCUIT WITH ESP32 C3 TO CONTROL ELECTRIC LOCK

2 Layers PCB 40 x 50 mm FR-4, 1.6 mm, 1, HASL lead free, Green Solder Mask, White silkscreen

With the help of this circuit you can control a 12V 500mA electric lock We will use programming in the Arduino IDE

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Published: Feb 25,2025

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File Last Updated: 2025/02/25 (GMT+8)

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2025-02-2509:03:43

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Topic

DIY Electronics

Educational

ESP32

DIY ESP32 esp 32 c3 esp 32 c3 supermini cerradura electrica electric lock

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	// Definición de pines
	const int botonPin = 3; // Pin de entrada para el botón (GPIO 3)
	const int cerraduraPin = 4; // Pin de salida para la cerradura (GPIO 4)
	const int buzzerPin = 6; // Pin de salida para el buzzer (GPIO 6)

	// Variables para millis()
	unsigned long tiempoInicio = 0;
	bool enSecuencia = false;
	int pasoSecuencia = 0;

	void setup() {
	pinMode(botonPin, INPUT_PULLUP);
	pinMode(cerraduraPin, OUTPUT);
	pinMode(buzzerPin, OUTPUT);
	digitalWrite(cerraduraPin, LOW); // Cerradura inicialmente desbloqueada
	digitalWrite(buzzerPin, LOW); // Buzzer apagado
	}

	void loop() {
	int estadoBoton = digitalRead(botonPin);

	// Iniciar secuencia con primera pulsación
	if (!enSecuencia && estadoBoton == LOW) {
	enSecuencia = true;
	tiempoInicio = millis();
	pasoSecuencia = 1;
	digitalWrite(buzzerPin, HIGH); // Paso 1: Pitido 0.5s
	}

	if (enSecuencia) {
	unsigned long tiempoActual = millis();

	switch (pasoSecuencia) {
	case 1: // Buzzer 0.5s
	if (tiempoActual - tiempoInicio >= 500) {
	digitalWrite(buzzerPin, LOW);
	digitalWrite(cerraduraPin, HIGH); // Paso 2: Activar cerradura 1s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 2;
	}
	break;

	case 2: // Cerradura 1s
	if (tiempoActual - tiempoInicio >= 1000) {
	digitalWrite(cerraduraPin, LOW);
	tiempoInicio = tiempoActual;
	pasoSecuencia = 3; // Paso 3: Esperar 8s
	}
	break;

	case 3: // Espera 8s
	if (tiempoActual - tiempoInicio >= 8000) {
	digitalWrite(buzzerPin, HIGH); // Paso 4: Buzzer 3s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 4;
	}
	break;

	case 4: // Buzzer 3s
	if (tiempoActual - tiempoInicio >= 3000) {
	digitalWrite(buzzerPin, LOW);
	pasoSecuencia = 5; // Paso 5: Esperar segunda pulsación
	}
	break;

	case 5: // Esperar segunda pulsación
	if (estadoBoton == LOW) {
	digitalWrite(cerraduraPin, HIGH); // Paso 6: Activar cerradura 5s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 6;
	}
	break;

	case 6: // Cerradura 5s
	if (tiempoActual - tiempoInicio >= 5000) {
	digitalWrite(cerraduraPin, LOW);
	enSecuencia = false; // Reiniciar sistema
	}
	break;
	}
	}
	}

	// Definición de pines
	const int botonPin = 3; // Pin de entrada para el botón (GPIO 3)
	const int cerraduraPin = 4; // Pin de salida para la cerradura (GPIO 4)
	const int buzzerPin = 6; // Pin de salida para el buzzer (GPIO 6)

	// Variables para millis()
	unsigned long tiempoInicio = 0;
	bool enSecuencia = false;
	int pasoSecuencia = 0;

	void setup() {
	pinMode(botonPin, INPUT_PULLUP);
	pinMode(cerraduraPin, OUTPUT);
	pinMode(buzzerPin, OUTPUT);
	digitalWrite(cerraduraPin, LOW); // Cerradura inicialmente desbloqueada
	digitalWrite(buzzerPin, LOW); // Buzzer apagado
	}

	void loop() {
	int estadoBoton = digitalRead(botonPin);

	// Iniciar secuencia con primera pulsación
	if (!enSecuencia && estadoBoton == LOW) {
	enSecuencia = true;
	tiempoInicio = millis();
	pasoSecuencia = 1;
	digitalWrite(buzzerPin, HIGH); // Paso 1: Pitido 0.5s
	}

	if (enSecuencia) {
	unsigned long tiempoActual = millis();

	switch (pasoSecuencia) {
	case 1: // Buzzer 0.5s
	if (tiempoActual - tiempoInicio >= 500) {
	digitalWrite(buzzerPin, LOW);
	digitalWrite(cerraduraPin, HIGH); // Paso 2: Activar cerradura 1s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 2;
	}
	break;

	case 2: // Cerradura 1s
	if (tiempoActual - tiempoInicio >= 1000) {
	digitalWrite(cerraduraPin, LOW);
	tiempoInicio = tiempoActual;
	pasoSecuencia = 3; // Paso 3: Esperar 8s
	}
	break;

	case 3: // Espera 8s
	if (tiempoActual - tiempoInicio >= 8000) {
	digitalWrite(buzzerPin, HIGH); // Paso 4: Buzzer 3s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 4;
	}
	break;

	case 4: // Buzzer 3s
	if (tiempoActual - tiempoInicio >= 3000) {
	digitalWrite(buzzerPin, LOW);
	pasoSecuencia = 5; // Paso 5: Esperar segunda pulsación
	}
	break;

	case 5: // Esperar segunda pulsación
	if (estadoBoton == LOW) {
	digitalWrite(cerraduraPin, HIGH); // Paso 6: Activar cerradura 5s
	tiempoInicio = tiempoActual;
	pasoSecuencia = 6;
	}
	break;

	case 6: // Cerradura 5s
	if (tiempoActual - tiempoInicio >= 5000) {
	digitalWrite(cerraduraPin, LOW);
	enSecuencia = false; // Reiniciar sistema
	}
	break;
	}
	}
	}

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