RR – PD controller block Oleg Marchenko07.04.20192,560 3 About A unique development from the team of Red Robots, custom block PD controller! Its application is limited only by your imagination: riding on the line, synchronization of motors, riding parallel to the wall and much more. Demo block Demo block that will allow you to check the performance. Works limited time (then one motor stops rotating). Download: RR PD Demo block Downloaded: 257, Size: 31.2 KB, Date: 07.Apr.2019 Cost & Buy now Block for EV3-G: 49.99 USD 25% discount for the first 10 customers!