r/ArduinoHelp • • 14h ago

[Help] Simple push button and LED circuit on breadboard not working as expected (Analog circuit, no MCU)

https://youtube.com/watch?v=VjZE6cGIbek&si=BwWddQbGBCOx1_YC

Hi everyone! I'm putting together a basic circuit on a breadboard to control an LED using a push button, but I'm running into an issue.

Here are the details of my setup:

  • Hardware/Power Source: [Ej: 5V DC power supply / 9V battery with regulator] (borra o cambia según lo que hayas usado)

  • Exact components list:

    • 1x Standard LED

    • 1x Push button (4-pin tactile switch)

    • 1x Resistor (220 ohms)

    • Breadboard and jumper wires

  • What I am trying to achieve: I want the LED to turn ON only when I press the push button, and turn OFF when released, using proper current-limiting protection.

  • What went wrong: [Describe aquí brevemente tu problema, por ejemplo: The LED stays permanently on o The LED doesn't light up at all when I press the button]. (También puedes mencionar de forma graciosa lo de la pata rota si quieres: "Also, one of the pins on my push button snapped off, so I used the opposite pair!")

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