I’ve looked through the forums, but have not found information specific to the machine that I am designing. So, I’d like to get some suggestions regarding which Pololu component(s) will work best for this project.
I’m building a round wheel conveyor for moving cylinders/bottles from one location to another. It’s kind of like what is used for filling soda containers. See the attached image. (This image is not my machine, just similar).
My current prototype is actually working quite well. The main wheel is powered by a 12V, 37D gear-motor. I’m controlling the speed with a $5 China/eBay PWM controller w/potentiometer. When all is working properly, the load on the motor is minimal. It can run cool for hours on end. But… when a cylinder/bottle does NOT slip out the exit slot properly, a jam-up occurs and the motor stalls. This is where I need your help.
My proposed solution is to have the elevated current detected when the wheel/motor gets jammed. Probably somewhere just below 1 amp. The controller would then stop the motor for 500 milliseconds, reverse the motor for 1000 milliseconds, (this will release the jam-up), pause the motor again for 500 milliseconds, then resume the normal forward direction. That’s it!
From my research, I think that the A-Star 32U4 SV will do everything I need. It would probably also replace the PWM speed controller (?). I do still want the ability to manually adjust speed (preferably via potentiometer). My power source is 12 volts, 5A.
I am a mechanical guy, so please reply in layman’s terms when referring to any suggested electronic/coding solutions. I do have a little Arduino experience.