I am a beginner and have a large RC Crane project on my desk. I have the idea of how I want to achieve the mechanisation of the telescopic boom.
it involves 3 sets of stepper motors
1_ 2 x micro steppers ; to control the retraction of a locking pin, the motors work simultaneously in parallel
2_ 2 x micro steppers ; to control locking pins to pick up the boom section, the motors work simultaneously in parallel
3_ 1 x nema 8 ; to control the carrier that hitches to the boom section and moves it.
I need to select hardware to control these motors. I have a big easy driver but for some reason I can’t get it to work. the motors work when connected directly to my mega board but not to the driver. (sparkfun).
I would like it to be a simple set up. there is only one endstop which is for the nema 8.
I intend to control the motors based on distance to travel.
The RC component I intend to build too. idea is to use a touch screen interface to select boom sections and the location I want them to travel to.
any hardware suggestions for the drivers?