SparkFun Qwiic Quad Solid State Relay Kit Hookup Guide
Contributors:
El Duderino, 
Englandsaurus
El Duderino, Englandsaurus 
Register Map
Below is the I2C register map if you would prefer to write your own code package or use a different language to control the Qwiic Quad Solid State Relay Kit.
You can also download the PDF.