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Driver for stepper motor for Barndoor Star Tracker

Posted: Fri May 31, 2019 6:18 pm
by axlefoley
I am in the middle of making a barndoor Star tracker and need a stepper motor driver to adjust the speed of the stepper motor to correct the tangent error.
I need some advise on what I need to order.
I have seen this (link below)and tried to contact him to purchase one of his drivers but no reply.
If anyone with knowledge of what he has used by looking at the driver and information supplied could help me order the right parts would be appreciated.

https://barndoor.space/index.php/2018/0 ... _stack2_50

Alan

Re: Driver for stepper motor for Barndoor Star Tracker

Posted: Sat Jun 01, 2019 8:25 am
by DanV
You just needed to browse his site a bit.
The driver is DRV8255 breakout board.
It is a shield to be plugged onto an arduino.
There is activity on his site as of April 2019, so it's likely he'll get back to you.
review this page for ALL the details:
https://barndoor.space/index.php/2018/0 ... ce-design/

Re: Driver for stepper motor for Barndoor Star Tracker

Posted: Sat Jun 01, 2019 5:38 pm
by axlefoley
Thanks Dan I got his messenger ID from one of the people that replied on barndoor.space and sent him a PM but no reply.

Al

Re: Driver for stepper motor for Barndoor Star Tracker

Posted: Mon Jun 03, 2019 9:02 am
by TS-Chris
Hi Al, and thanks for posting.

What kind of motor do you have? If it's a 4 wire, bi-polar stepper that needs less than 2A of current, our Big EasyDriver might work for you. All you really need to do is supply the board with power and send it steps and the motor will move.

The hookup guide might be more in depth than you need for your project, but you might give it a look over. That should explain how to use the driver. :-)

Re: Driver for stepper motor for Barndoor Star Tracker

Posted: Fri Jun 07, 2019 4:15 pm
by axlefoley
Thanks Chris sorry for the delay, I have one of those from a previous order I’ll dig it out and I’ve just ordered a 2amp motor from SparkFun.

Al