Setting up a wallet in a Raspberry Pi was not working , but that was fixed recently with v3.0.0.
You can easily set it up with these steps:
wget https://github.com/PIVX-Project/PIVX/releases/download/v3.0.0/pivx-3.0.0-arm-linux-gnueabihf.tar.gz
tar -xvzf pivx-3.0.0-arm-linux-gnueabihf.tar.gz
cp pivx-3.0.0/bin/* ~/.pivx
# start the daemon
~/.pivx/pivxd
I wrote a few helpers that I use to check up on my node. You might find them useful:
https://github.com/givanse/pivx-helpers