This product is no longer available
We no longer stock Qwiic GPIO, but here are current alternatives in SparkFun Qwiic Ecosystem.
Qwiic GPIO
Discontinued
The Qwiic GPIO adds four additional digital I/O pins to your project over I2C using the simple SparkFun Qwiic connector system. Read and write pins just like standard Arduino GPIO — the I2C interface is handled by the library so you can call familiar functions like pinMode and digitalWrite.
This version features easy-to-use latch terminals for tool-free wire connections. With three customisable address jumpers, you can connect up to eight boards on a single I2C bus for a total of 32 additional GPIO pins.
Key Features
- 4 Additional GPIO Pins – Digital read/write over I2C
- Qwiic Connector – Plug-and-play, no soldering or voltage translation needed
- Latch Terminals – Tool-free wire connections, supports multiple wires per terminal
- Chainable – Up to 8 boards on one bus (32 extra GPIO pins)
- Default I2C Address – 0x27 (customisable via solder jumpers)
- Arduino-Style Functions – Familiar pinMode and digitalWrite commands
Ideal For
- Projects needing just a few more I/O pins
- Qwiic ecosystem builds
- Expanding GPIO on pin-limited microcontrollers
- Quick prototyping with latch terminals
Package Contents
- 1× Qwiic GPIO board
Note: This is a SparkX experimental product — tested but without guarantees. Visit the SparkFun Forum for community support.
