I'm trying to connect an Arduino Mega to a SparkFun Quad Solid State Relay. SparkFun Qwiic Quad Solid State Relay Kit - KIT-16833 - SparkFun Electronics
The interface it has has 3.3v, ground, SDA and SCL.
There is also this library which allows Arduino to talk to the device over Qwiic
https:// github . com/ sparkfun/ SparkFun_Qwiic_Relay_Arduino_Library
What I'm not sure though it what pins on the Arduino I need to use for SDA and SCL.
Any help would be greatly appreciated! Thanks