Direct Output module pins protection
Posted: 06 Jun 2022, 19:36
Hello!
I'm trying to power a relay using one of the pins for the DO Module of my Revolution PI. I also need to have a way to power the same relay using a manual button. Here's a simplified diagram of what I'm trying to do:
My question is: Does the DO Module have any built-in protections so the current from the button being pressed doesn't go inside the pin? Or do I need to do place a diode like this to avoid the current going in?
Thank you for your help!
- Rodrigo
I'm trying to power a relay using one of the pins for the DO Module of my Revolution PI. I also need to have a way to power the same relay using a manual button. Here's a simplified diagram of what I'm trying to do:
- RevPI DO in.png (5.88 KiB) Viewed 9747 times
- RevPI DO in with diode.png (6.08 KiB) Viewed 9747 times
- Rodrigo