Best posts made by RoyMackay

To anyone with the misfortune to come across this in future,
For my particular case, I didn't care about the web portal, and also didn't need or want to receive any information back from duet board, I simply needed to send G-code that I'd generated on my mobile phone to the board and have it carry out the commands. I wasn't thrilled about the idea of removing the wifi module and soldering the new connections for an SPI bus onto the board, so for the time being, I've just connected the board to the raspberry pi using the usb connections, and send the data using 'minicom'. I haven't finished building the machine yet, so I won't know for sure if its working, but at this stage it seems to be transmitting, and the board is replying with errors due to the fact there's no steppers connected. Possibly not a workable solution if it's a standard upgrade for a home printer, but for what I'm doing I think(hope) it will work well enough.
For reference the application is a custom mobile small engraver, with gcode that's generated on an iPhone. The firmware on the board is the Reprap 3.5(latest at time of posting), configured for SBC, and I wound up just using the standard 32 bit raspberrypi OS