Kinda had a feeling that was going to be the case, but figured it was worth a shot. Thanks for the fast feedback, exactly why I picked up your products. Btw that hammer header is fantastic.
I did find an example of some custom work to make an I2C relay board, http://www.instructables.com/id/I2C-Relay-Board/. Assuming it works, nice to have all the relays addressable but not so sure it’s worth all the effort, espescially with everything hard wired and u know what’s connected where.
All this reminded me of an article I read a few years back on the new USB PD spec. Still not much around on it, but supports 5,12,20V and up to 100W, more than enough. Probably still too early, maybe someone’s looked into it?
For a bit of context on what I’m up to, I’ve hacked this indoor vertical herb garden from IKEA parts, the LED grow lights are controlled by a smart plug for now and the peristaltic irrigation pumps by the raspi. Admittedly, overly ambitious, I’d like to make it modular/plugin play so it’s easy to add pumps, lights, monitors whatever else with little to no additional coding once you’ve got it up and running. Ie you could just plug into a USB bus, have it read what kind of device it is and then allow u to control by the pi, power through the USB PD. Yeah…probably overly ambitious.