Hi. I grabbed a Shelly Uni also to try instead of an ACDC converter for the Shelly 1. I got the unit device and just tried to do a simple power load test to see if I could get a access point published.
I have a BFT Deimos Merak control board also, that outputs 24VAC from terminals 50-51, so I just connected the Shelly Uni Pin 1 and 2. (51 > 1, 50 > 2) while turned off.
When I powered the motor on, the Shelly Uni capacitor was smoking, and an led was blinking on it. I even briefly saw the access point appear. I powered off the gate, but when I powered it on again, the Shelly Uni was dead. Fried. So I’m back to the drawing board again. Hopefully someone with more electrical knowledge can tell me why this might have happened.