Im looking to be able to power on and off a 12vdc pump motor via lora and a SSR. The kicker is I would also like to be able to manually turn on and off the same pump with a switch. I would almost like them to run independently from each other so if I turn on the pump with the SSR Id still like to be able to turn it off manually or via SSR and vise versa
The your two devices can only do that IF they both control a third device that does the actual switching!
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You need a form C set of contacts for each. Look up three way switches.
Try this:
I made a rough sketch. The motor status feedback is needed so your control MCU “knows” when the motor is running so it can act appropriately.
This is a classic three way switch. You could also implement the scheme by sending the local switch status back through LORA and let the MCU do the logic.u