A simple controller for steppers & fans

Projects General Guidance
1

I have a project and what I need to do is control these 3 items.
All 3 of these are part of a telescope. They don't require a lot of power. They are just for positioning and cooling.
The STEPPERONLINE stepper is just for focusing. It moves a 6" mirror back and forth through a reduction unit and only has to do this once or twice a night.
The Lin Engineering stepper is just for rotating a camera and is only used once or twice a night.
The Sunon 80mm cooling fans are only run as the sun goes down to cool the telescope to night time temperatures and then are shut off.

I have both 12vdc and 24vdc available for power.

I have a 3 axis stepper motor control board with a 24v PWM output for a spindle motor.
I have tried a couple of PWM "converters" for the 12vdc fans and neither has worked for the fans but work great to run the steppers.

Whatever the answer is I need to control it remotely via USB or RS232 and have some simple software just to move the motors and turn the fans on and off.

So that's my problem and I come here seeking help.

NEMA 17 bipolar 4-wire
STEPPERONLINE
Voltage 2.8 Volts
Rated current 1.68A & resistance 1.65ohms

NEMA 17 bipolar 4-wire
Lin Engineering
4-wire
4118S-15 0.50A

3ea (in parallel)
Sunon 80mm cooling fans
12vdc 1.7w ea

2

Hello, why did you post in the "Installation & Troubleshooting" category ?

➜ moved to a more suitable category

do yourself a favour and please read How to get the best out of this forum and modify your post accordingly (including code tags and necessary documentation for your ask).

3

Because I did not know where else to put it.

4

and so you felt it was the perfect location despite the warnings

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and ignored the post pinned at the top of that forum

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:thinking:

anyway, read the light rules for getting the most out of the forum.

5

So just delete my message and I will delete my account.
OK?

6

No , that's OK now. You are in the right section. just do the right thing

to your question, what UI are you looking for ? you type commands in a terminal window and they are interpreted ? I would suggest to study Serial Input Basics to handle this

7

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