How to use I2C FET Boards with ESP32

Hi, I have bought FET Boards which help me to control the solenoid valve but I am looking for some practical application or code which help me to test with these Boards more easily any suggestion will be very helpful

I haven’t done anything with Particle, but that would probably be a great complimentary technology - https://learn.adafruit.com/mit-app-inventor-and-particle-io

There’s TONS of stuff out there for Arduino (and clones) for controlling stuff via I2C. It’s actually a lot easier than the reading materials makes out. I use I2C often in my Halloween projects

https://learn.sparkfun.com/tutorials/i2c