The SparkFun Qwiic Button simplifies adding a tactile button to your I2C project. It handles debouncing, pull-up resistors, and polling internally, so you can focus on your application. A built-in red LED provides visual feedback and can be configured to blink at custom rates.

Each button has a configurable I2C address, allowing you to daisy-chain multiple Qwiic Buttons and address each one individually. An onboard FIFO queue records button press timestamps, and configurable interrupts can trigger on press or click events — freeing your microcontroller from constant polling.

Key Features

• Built-in Red LED – Configurable blinking for visual feedback
• I2C Interface – Configurable address for daisy-chaining multiple buttons
• Hardware Debouncing – Clean button signals without software workarounds
• Configurable Interrupts – Trigger on button press or click events
• FIFO Queue – Onboard record of button press timestamps
• Qwiic Connectors – Polarised 4-pin JST for solderless I2C hookup

Ideal For

• User interface controls in I2C-based projects
• Multi-button panels via daisy-chained addressing
• Event-driven applications requiring interrupt-based input

Package Contents

• 1× SparkFun Qwiic Button (Red LED)

Resources

• Hookup Guide
• Arduino Library (GitHub)
• Interrupts with Arduino Guide