Question: are lego nxt and ev3 compatible?
Answer: LEGO® MINDSTORMS® Education EV3 NXT Compatibility EV3 uses the same RJ12 connector cables as the NXT, so all NXT sensors and motors will work with the new EV3 platform. EV3 uses the same LEGO Technic building system as NXT so you can reuse all of your bricks and other elements.