Circuito de Relés para Luces LED

flux

Aquí tienes un esquema básico explicado en forma de bloques para que lo puedas reproducir en tu proyecto:
1. Circuito de control del relé (lado microcontrolador):
  • Relay y Transistor:
    • La bobina del relé (SRD-05VDC-SL-C) se conecta entre +5 V y el colector del transistor (2N2222).
    • El emisor del 2N2222 se conecta a GND.
    • La base del transistor se conecta a una salida del microcontrolador a través de una resistencia de 1 kΩ (1kΩ Resistor) para limitar la corriente.
  • Protección con diodo:
    • Se coloca un diodo (1N4001) en paralelo con la bobina del relé:
      • Cátodo: Conectado a +5 V (lado de alimentación de la bobina).
      • Ánodo: Conectado al colector del transistor (lado del transistor).
2. Circuito de la luz LED:
Puedes colocar este circuito independiente o, si se requiere controlarlo mediante el relé, conectándolo a los contactos del mismo. El circuito básico es:
  • La fuente de +5 V conecta a una resistencia limitadora (valor calculado de 150 Ω: (150Ω Resistor)).
  • El otro extremo de la resistencia se conecta al ánodo de la luz LED (LED Genérico).
  • El cátodo de la LED se conecta a GND.
Resumen visual simplificado (no es un diagrama en esquemático, sino una guía de conexión):
         +5V
          |
     -----------------
     |               |
  [Relay Coil]     [Resistor 150Ω]
     |               |
  (Colector)      [LED]
  [2N2222]         |
     |            GND
(Base conectada al microcontrolador mediante [1kΩ Resistor])
     |
    GND

  • Diodo [1N4001] se conecta en paralelo a la bobina:
       - Cátodo a +5V
       - Ánodo al Colector del 2N2222
Este esquema muestra cómo se activa el relé desde el microcontrolador y cómo se protege el transistor con el diodo. El bloque de la LED se proporciona con la resistencia limitadora para asegurar los 20 mA a 2 V de caída de la LED.
¿Te gustaría sugerir alguna modificación adicional o agregar estos bloques al esquema del proyecto?
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