Thanks. I read your post several times. It helps a lot. Thanks for your time for writing this guideline.
More illustrations for my project:
Several Grove I2C motor shields will be use to control:
- one 12VDC pump
- two computer cooling fans
- two solenoid valves
- two LED strip
- two 9g Mini Servo
The distances of all the wires between devices and shield will be within 70cm.
Each I2C motor shield will be powered by a wall power adapter (12VDC 3A).
Now I need to specific the “address” of each device in the code in order to control them individually.
Thanks,
Michael