Quantity   Component name
1 × Arduino (Compatible) Nano
1 × NRF24L01
2 × Digitaly Addresable LED`s Rings (16 LEDS) Available on Adafruit / Sparkfun
1 × DC DC Converter, Step Down to 5V
1 × Bluetooth HC-05
1 × Custom Prototype PCB Available on GitHub. Not mandatory.
2 × Smart Juggling Balls https://hackaday.io/project/5466-smart-juggling-balls