I can't find on google or on the forum how to make an esp8266 based gateway with a local relay connected report the state of the relay back to my controller(which is a vera, but that should't matter). Thanks for the help.
Yes, it should be possible. Convert the serial node to use MySensors. The relay example should be a good base. Add the converted code to the mqtt sketch and you should be fine.
@nicomedia I stumbled on this doing a google search. Just wondering if you are still trying to get your Sonoff's working with your Vera controller? If so, I have written a blog post on the subject. It uses a different firmware called ESP Easy and an HTTP Switch plugin on the Vera rather than MySensors. but it works rather well for me. Here is the link to the blog post:
https://dan.bemowski.info/2017/07/04/using-a-sonoff-with-espeasy-and-vera/
I use this in conjunction with some MySensors wall switches that I built.
https://dan.bemowski.info/2017/06/11/my-start-into-open-source-hardware/