Robert,
It appears there are two versions of a board to use with the moonlite hi-res stepper motor. The UNO and L293D and the Nano + L293D. Is there an advantage of oneover the over? What is the difference? I would want a minimal board with the temp probe so the controller box is as small as possible. Thanks
Mark
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Hi Mark
The Moonlite should work with any version except ULN2003. You just need to make that wire change on the metal case of the DB9.
The UNO+L293D is the larger. There is NO difference or advantage of one over the other.
The myFocuserPro2M has the smallest foot print. This is in the process of production. The controller box measures 100mm long x 62mm deep x 36mm high, fully assembled with temperature probe and oled (or without oled).
For a DRV8825 the PCB measures 60mmx51mm. Look in the files/myfocuserpro2m.
Thanks Robert. I have the left over parts for the DRV8825 version so that would work with the moonlite stepper???
All in need to do is just need to make sure to wire per the moonlite stepper motor schematic? I thought the moonlite sold stepper was a unipolor and the others werer bipolor so they wouldn't be compatable?
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Robert,
Tonight I tested the DRV8825 with the moonlite high resolution stepper. The test was successful using moving the stepper in and out and to any selected position and to home position. The following pin assignments from the DRV8825 to the DB9 connector
DRV8825 pin ==> DB9 connector
1A ==> Pin 1
2A ==> Pin 2
1B ==> Pin 3
2B ==> Pin 4
I did not have to attach 12V+ to pin 5 or ground to the shield for the stepper to work. I didn't test the stepper with the 12v+ to pin 5 and 12v- to the shield. I saw no reason to risk any potential issues since the stepper worked. If anyone knows of any issues created by not attaching the 12v+ feed to pin 5 and the ground to shield let me know.
Last edit: Mark Woolridge 2019-01-16
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Robert,
It appears there are two versions of a board to use with the moonlite hi-res stepper motor. The UNO and L293D and the Nano + L293D. Is there an advantage of oneover the over? What is the difference? I would want a minimal board with the temp probe so the controller box is as small as possible. Thanks
Mark
Hi Mark
The Moonlite should work with any version except ULN2003. You just need to make that wire change on the metal case of the DB9.
The UNO+L293D is the larger. There is NO difference or advantage of one over the other.
The myFocuserPro2M has the smallest foot print. This is in the process of production. The controller box measures 100mm long x 62mm deep x 36mm high, fully assembled with temperature probe and oled (or without oled).
For a DRV8825 the PCB measures 60mmx51mm. Look in the files/myfocuserpro2m.
Regards
Robert
Thanks Robert. I have the left over parts for the DRV8825 version so that would work with the moonlite stepper???
All in need to do is just need to make sure to wire per the moonlite stepper motor schematic? I thought the moonlite sold stepper was a unipolor and the others werer bipolor so they wouldn't be compatable?
Hi Mark
I do not have a moonlite motor, as I am relying on comments from others. So it is more than likely that in this I can be wrong.
You will have to breadboard it to test. Please let me know how it goes.
You will only be able to use full/half stepping though.
The best option for supporting a unipolar motor out of the box is the UNO+L293D shield.
Regards
Robert
Robert,
Tonight I tested the DRV8825 with the moonlite high resolution stepper. The test was successful using moving the stepper in and out and to any selected position and to home position. The following pin assignments from the DRV8825 to the DB9 connector
DRV8825 pin ==> DB9 connector
1A ==> Pin 1
2A ==> Pin 2
1B ==> Pin 3
2B ==> Pin 4
I did not have to attach 12V+ to pin 5 or ground to the shield for the stepper to work. I didn't test the stepper with the 12v+ to pin 5 and 12v- to the shield. I saw no reason to risk any potential issues since the stepper worked. If anyone knows of any issues created by not attaching the 12v+ feed to pin 5 and the ground to shield let me know.
Last edit: Mark Woolridge 2019-01-16
Cool, many thanks Mark for the feedback
Regards Robert