Using Spring boot + Firmata4J + Arduino Uno + Raspberry pi B.
A simple Spring boot application.
In this very small project you can control the arduino through the Raspberry pi USB.
And by using Spring boot @RestController to put an Arduino LED on and off really easy.
ps: The Arduino uses the "StandardFirmata" schema you can find it in the Arduino examples schemas.
SpringBoot + JPA + Scala
Standard REST SpringBoot server made in Scala!
A fully functional spring security backend REST server