Customer:
I want to build a ball and plate project. I’ve previously built a setup using Raspberry Pi 3 with Lego servo motors controlled via Dexter BrickPI. I’d like to achieve ball control first using a PID algorithm, and later more advanced AI algorithms. With that hardware, I wasn’t able to achieve ball control, which I suspect is due to the motors being inadequate. I track the ball position using a camera or touch panel; the motor position (encoder) is not critical to me—perhaps only as a safety measure to disable the motors if the plate rotates more than the construction allows. I’d like your recommendation on which motors and drivers would be best for this project that I can connect to a Raspberry Pi.
Original message (Croatian)
Projekt koji želim napraviti je Ball and plate, dvije osnovne konstrukcije su i . Dosad sam napravio konstrukciju koristeći Raspberry Pi 3, Lego servo motore koje sam pogonio pomoću Dexter BrickPI .
Upravljanje loptice bih prvo želio postići preko PID algoritma, a nakon toga i naprednijih algoritama umjetne inteligencije. Koristeći navedeni hardware nisam uspio postići upravljanje loptice, pretpostavljam zbog loših motora.
Ono što ja pratim je položaj loptice (pomoću kamere ili touch panela), položaj motora (encodera) mi nije bitan (možda jedino kao osiguranje da isključim motore ako se ploča zarotira više nego što konstrukcija dopušta).
Zamolio bih Vas da mi preporučite koje motore i drivere bi bilo najbolje koristiti za ovaj projekt, a da ga mogu spojiti na Raspberry Pi.
Originally submitted via email support on 24 April 2017. Migrated to the forum for community visibility.