I want to use industrial photo sensors and relays with the Jetson NX SOM with Avermedia NX-215 carrier board.
Similar to the dev kit, this also gives me 3.3v (very low current capable) GPIO without any inbuilt pull up/down. I have tried various different relay modules made for raspberry pi, but the current in the jetson’s gpio simply isn’t sufficient to drive 3 to 4 relay coils at a time.
For inputs I have been using a optocoupler circuit which seems to work with an additional pull-down circuit in between (to avoid floating input)
Is there a simpler way or a ready product that achieves this functionality for any of the Jetson (xavier NX/AGX)?
I desperately need input and output capability to complete my project.