Accessory port for Raspberry Pi 3
In Jo's interview with Tom, he mentions that the new Einsy board has an accessory port that will either take a Pi Zero W mounted directly to it, or users could make a cable and connect a regular Raspberry Pi to it. Does anyone know where I might find some more information about the pinouts of the accessory port, or other information regarding connecting a RasPi3 to the port?
Re: Accessory port for Raspberry Pi 3
i paused this video and copied the pin out from it
Re: Accessory port for Raspberry Pi 3
Interesting. That's the video I mentioned in my original post. I paused it as you suggested, but all I can really tell is that the only pins connected are 5v power, ground, uart rx and tx, GPIO2 and GPIO22. The power and serial pins make sense - those would be the minimum needed for octoprint or other host software to communicate. What are the two GPIO pins for?
Re: Accessory port for Raspberry Pi 3
There was a mention that the "power panic" would be communicated to the Pi. That wouldn't be through normal serial channels, that would be low level hardware, so likely using one of the GPIO pins. The other? No clue.
Re: Accessory port for Raspberry Pi 3
I hope it's the filament runout sensor info on one of the pins, at the moment I have a custom one that plugs in my raspberry pi and pauses the job, in the MK3's case it would only serve as information, maybe have octopi send you a message to warn about filament running out.