How to communicate with an Arduino via Serial using PHP code
Introduction I recently got my hands on a 7-segment display module (always wanted to play with those!) for a little project and at first I wanted to use purely PHP on a Raspberry Pi Zero to control it. However, due to lack of time (and a touch of lazyness) I ended up using an Arduino with the default library associated with this module (TMI637.h), and while looking for ways in which I could send data to the display through PHP code I figured it was really easy to use serial c
