Button-LED-Control-OnPressed

Overview

This Arduino project controls an LED using a push button.
The LED turns ON when the button is pressed and OFF when released.
It uses the INPUT_PULLUP configuration to simplify wiring without requiring an external pull-up resistor.

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Components Used

• Arduino Uno R3 or compatible board
• Push button switch (4-pin)
• LED
• Resistor (220Ω) for LED protection
• Breadboard and Jumper Wires

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Wiring

• Button Pin 1 → GND
• Button Pin 2 → Pin 8 (Digital Input)
• LED Anode (long leg) → Pin 9 (Digital Output)
• LED Cathode (short leg) → GND via 220Ω resistor

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How It Works

1. The button is configured with an INPUT_PULLUP resistor, making its default state HIGH when not pressed.
2. Pressing the button connects it to GND, changing its state to LOW.
3. The LED turns ON when the button state is LOW and OFF when the button is released.

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Code

See the (https://github.com/ZaGrace/Button-LED-Control-Arduino-/blob/main/Button_LED_Control_OnPressed.ino) for the complete code.

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License

This project is licensed under the MIT License.