Wanting to improve my watering project piloted by a Rasp, I would like to detect a strong current (voltage?) and then, trigger an action (in the visual, red light to on and cut-off the control box).
So I bought the “SENSOR ACS712 MODULE” module for that.
What I would like to know: how I could protect my Rasp (and in particular the GPIO)?
I positioned on the diagram 2 resistances, but:
- Are they in the right place and the number sufficient?
- If yes, what type of resistance should I use?
You will understand: the law of Ohm is abstract for me: sweat_smile:
Thanks for your reply