Controlling a LED number display with JavaFX and Python on Raspberry Pi

In my book I explain the use of bits and bytes by using a shift register SN74HC595 IC and 5101AS LED number display.
Controlling Arduino with Mosquitto and JavaFX on Raspberry Pi

One of the example applications in my book “Getting started with Java on the Raspberry Pi” combines a JavaFX application with Mosquitto on the Raspberry Pi to control a LED strip with an Arduino. All wireless and independent of each other as the Mosquitto-queue is dealing with exchange commands between all applications.