Arduino INPUT_PULLUP Tutorial | Push Button Without Resistor
Learn how to use the INPUT_PULLUP mode in Arduino to read a push button without an external resistor.
In this beginner-friendly Arduino tutorial, you'll learn how the built-in internal pull-up resistor works, why it simplifies wiring, and how to read button presses using active LOW logic. This is an essential concept for anyone learning Arduino digital inputs.
📚 In this tutorial you'll learn:
• How to use INPUT_PULLUP
• How to connect a push button without a resistor
• Why the internal pull-up resistor is useful
• How active LOW button logic works
• How to read digital button input with Arduino
🔧 Components Used:
• Arduino Uno (compatible with Nano)
• Push Button
• Breadboard
• Jumper Wires
💻 SOURCE CODE:
Check the pinned comment below!
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🔍 Related Topics
• Arduino INPUT_PULLUP
• Arduino Push Button
• Arduino Digital Input
• Arduino Button Tutorial
• Arduino Internal Pull-Up Resistor
• Arduino Beginner Projects
• Arduino Button Without Resistor
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