SparkFun Qwiic Button Breakout

The SparkFun Qwiic Button Breakout is an easy-to-use, tactile I²C device that simplifies the intricacies of debouncing, polling, and wiring up pull-up resistors. This device is perfect for any project requiring a button interface. The Qwiic Button Breakout allows you to select a 12mm illuminated button of your choice to solder onto the breakout, making it a perfect match for your project.

The SparkFun Qwiic Button Breakout is designed to accommodate multiple buttons for your project. Each button has a configurable I²C address, allowing you to daisy-chain multiple buttons over Qwiic and still address each one individually. The Arduino library offers an example that provides an easy way to configure your Qwiic Button to whatever I²C address you need.

Aside from handling blinking and debouncing, the Qwiic Button also features configurable interrupts that can be set to activate upon a button press or click. An innovative feature of the Qwiic Button is the implementation of an onboard FIFO queue. This queue keeps an internal record of when the button was pressed, saving your microcontroller from wasting valuable processing time checking the status of the button. Instead, it can run a small function whenever the button is pressed or clicked.

The SparkFun Qwiic Connect System is a comprehensive ecosystem of I²C sensors, actuators, shields, and cables aimed at making prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This design minimizes the amount of required PCB space and ensures error-free connections with its polarized design.

Features of the SparkFun Qwiic Button Breakout include a built-in LED that can be configured to your desired level of blinking, a configurable I²C address for each button, configurable interrupts, and a FIFO queue. You can also choose your preferred button color from red, blue, green, or white LED Tactile Button.

Supporting documents for the SparkFun Qwiic Button Breakout include a schematic, eagle files, board dimensions, hookup guide, Arduino library, Python package, register map, and GitHub Hardware Repo.