A long time ago in a galaxy far, far away... 

The RESISTANCE created a robotic X-wing Starfighter prototype to help them in restoring peace and justice to the galaxy. The crucial building instructions of the new X-wing (using a single Lego SPIKE Prime kit) and the Scratch based programming code must travel to the new REBEL base for a massive production. The EMPIRE is aware of their plans and the diabolical FIRST ORDER have prepared a trap.  

This ebook includes building instructions and programming (using scratch blocks) of a robotic X-wing Starfighter, using a single Lego SPIKE Prime kit. The X-wing opens and closes its wings based the ultrasonic sensor's values.