AWESOME video. Sooooo, I have a pi-zero-w just sitting around not doing anything, and also an Icom IC-705. I **think that means I have everything needed.
first, i'm green with envy, second, yup, should work great! change the rig number in the /home/pi/direwolf.*usb.conf files (currently 135, for yaesu991), also change the rig number in /etc/systemd/system/rigctld.service. assuming rigctld/hamlib support the 705? please report back.
See if you can get a yaesu CAT-62 cable, this provides a USB serial port to the DigiPi. then in /home/pi/direwolf.conf, add "PTT RIG 1020 /dev/ttyUSB0". Direwolf can then control ptt on that rig.
