Timeline for Slow down stepper motor's speed using stepper driver DRV 8825
Current License: CC BY-SA 3.0
26 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 15, 2016 at 11:00 | answer | added | Blaise M | timeline score: 2 | |
| Aug 15, 2016 at 10:41 | comment | added | dsignr | Let us continue this discussion in chat. | |
| Aug 15, 2016 at 2:48 | vote | accept | dsignr | ||
| Aug 14, 2016 at 16:06 | review | Close votes | |||
| Sep 3, 2016 at 11:39 | |||||
| Aug 14, 2016 at 15:53 | comment | added | Chris Stratton | I am voting to close this question as unanswerably unclear, as it omits important details of the driver board connection. Further, the poster has accepted an answer which is actually wrong - at present the state of the question invites new responses to correct these errors, but those responses will not be welcomed as the poster has apparently somehow satisfied themselves. Having this question here does no one any good, "it's a trap!" | |
| Aug 14, 2016 at 15:18 | comment | added | user2943160 | @BlaiseMuller: Welcome to EE.SE. While these signals were omitted on the schematic, I expect that the question asker had them properly connected and was more concerned about the connections between the controller and the motor, not the connections between the arduino and the controller. | |
| Aug 14, 2016 at 15:12 | comment | added | user120707 | Your code for microstepping is correct. But you haven't connected the command outputs (pins 5,6,7 of the Arduino) to the corresponding inputs on the shield: M0, M1 and M2 !!! | |
| Feb 6, 2015 at 13:29 | comment | added | user66114 | Not sure how could you change microstepping with code when you did not connect the driver on M0M1M2 to processor? At least it is not in your diagram. Can you confirm? Marek | |
| Sep 15, 2014 at 5:52 | vote | accept | dsignr | ||
| Aug 15, 2016 at 2:48 | |||||
| Sep 15, 2014 at 5:52 | answer | added | dsignr | timeline score: 3 | |
| Sep 13, 2014 at 19:28 | history | edited | dsignr | CC BY-SA 3.0 |
Updated code.
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| Sep 13, 2014 at 17:46 | comment | added | dsignr | Hi Andy, I bought it in Singapore from a local electronics store, these images and (vague) descriptions were what the dealer had sent me via E-mail. However, since you've suggested this, I'm going to measure the Ohms between the coils to see if they are correct. That should be a good start, don't you think? If what you suggested was an answer and if that was the case, I'd gladly accept it and close this question (if you were right) :) | |
| Sep 13, 2014 at 17:44 | answer | added | Andy aka | timeline score: 2 | |
| Sep 13, 2014 at 17:40 | comment | added | Andy aka | Why don't you supply a link to the motor so I can check you have correctly interpreted the wiring? | |
| Sep 13, 2014 at 17:37 | comment | added | dsignr | Wow, I never thought of that. I have updated the question with my current wiring scheme. Cheers! | |
| Sep 13, 2014 at 17:36 | history | edited | dsignr | CC BY-SA 3.0 |
Added wiring.
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| Sep 13, 2014 at 17:33 | comment | added | Andy aka | So what about the details so we can check ourselves. If I look at your picture I see 4 wires named but how do these connect to the DRV8825? I'm saying this because I see a potential problem with what you assume to be A- and B+ - I think you have them the wrong way round. | |
| Sep 13, 2014 at 17:27 | comment | added | dsignr | Hi Andy, I have added a photograph and also edited my question. Thanks! | |
| Sep 13, 2014 at 17:27 | history | edited | dsignr | CC BY-SA 3.0 |
added 197 characters in body
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| Sep 13, 2014 at 17:23 | comment | added | Andy aka | Details of the 6 wires of which you used 4? | |
| Sep 13, 2014 at 17:10 | comment | added | dsignr | Sorry, that wasn't my intention. I'm using the unipolar stepper motor as a bipolar stepper motor. I connect the four wires to the four leads of the driver. The remaining two are left idle (as mentioned in the FAQ section of the docs I've linked above). Cheers! | |
| Sep 13, 2014 at 16:55 | comment | added | Andy aka | Hmmm you are not making this easy. I asked how did you decide how to connect the wires - I didn't want a link to a data sheet that ONLY gives HALF the story. Prove to me that you have wired it correctly. | |
| Sep 13, 2014 at 16:51 | comment | added | dsignr | As per the docs which says I can do so, here: pololu.com/product/2133 | |
| Sep 13, 2014 at 16:49 | comment | added | Andy aka | How did you decide how to connect the 6 wires of the stepper motot to the 4 outputs of the DRV8825? | |
| Sep 13, 2014 at 16:24 | review | First posts | |||
| Sep 13, 2014 at 17:00 | |||||
| Sep 13, 2014 at 16:20 | history | asked | dsignr | CC BY-SA 3.0 |