Standalone Servo Operation?

[David_Lewis]

I am fitting my SV32 roll servo in my wing build, but don't yet have my Dynon EFIS/autopilot. That purchase is a couple of years away. Is there an inexpensive interface and application that would allow me to power up the servo and run it through its range of motion? I've worked with stepper motors before, so on the surface it would appear to be a relatively simple thing to do. If there is an available solution I'd like to learn about it.

 

[dynonsupport]

There is no way to drive the servos. They communicate via a complex data protocol and all the stepping control is done inside the box. The cheapest way to make one move really is the EFIS D10A

Note that the servos don't really have a range of motion- they can spin around 360 degrees as many times as you want. The limits and protections should be built into the airplane. So the best way to test for now is really just move the controls manually.

 

[dynonsupport]

David:

The stepper motor in a Dynon Avionics servo is controlled by a microcontroller, so the only way to move the stepper motor is to send it the correct commands from an Dynon Avionics EFIS or SkyView (obviously we recommend the latter for new installations). Perhaps you could borrow a Dynon Avionics EFIS or a SkyView display from a friend who's further along in their build?

I am fitting my SV32 roll servo in my wing build, but don't yet have my Dynon EFIS/autopilot. That purchase is a couple of years away. Is there an inexpensive interface and application that would allow me to power up the servo and run it through its range of motion? I've worked with stepper motors before, so on the surface it would appear to be a relatively simple thing to do. If there is an available solution I'd like to learn about it.

 

[David_Lewis]

OK, thanks. I may look for a D10A to use. I am very familiar with stepping motor control and how the data sent allows precise positioning of the shaft, as well as how management of the data restricts movement within defined ranges. I'm surprised Dynon does not have a simple hardware interface to test the servos through a laptop, but I guess the fear is that someone would try to fly with that configuration.
Thanks again.