Our soon to be 3x14 LED-bar [-+> ] in 7 windows of Progressbar at Michalska 3, Bratislava, Slovakia
Mood/Ambient lamp in windows of Progressbar hackerspace
we are using e1.31 protocol, so far testing unit is at universe 2
$ brew install pkg-config cairo libpng jpeg giflib
https://github.com/bbx10/espopc
https://github.com/bbx10/node-opc-server