Actually that may do just fine. I have not tried it. It says it supports 16th step, meaning it should have a microstep resolution of 3,200 steps per rev, so it should be a perfectly good direct replacement for the big easy.
I might have to order one and experiment around.
OK OK OK so the code, and the schematic, i have honestly been just SWAMPED with a new project i am working on, but i really need to get this stuff out. So tell ya what, tonight ill try to get the code prepped for upload, and get the new schematic uploaded.
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Ok buddy, New schematic and code are both up in the files section in the Chronos 2.0 folder. If you have any questions let me know, you DO need the newsoftserial library, it can be found at http://arduiniana.org/libraries/newsoftserial/
Last edit: christopher field 2012-05-19
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The latest version of NewSoftSerial is available here: NewSoftSerial12.zip. Note: don’t download this if you have Arduino 1.0 or later. As of 1.0, NewSoftSerial is included in the Arduino core (named SoftwareSerial).
.........
?
i need this library or not? Step buy Step i understand this Arduino system !
i hope next Weekend i finish the Electronic and i can make a test before i buy the real!
i buy a Arduino UNO R3 ( before coming out your actual List) and i have some error cod's, iam not a programmer for i can fix this problem! i buy a Arduino UNO and will tray again upload the software!
Dirk
Last edit: mexicodirk 2012-06-19
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ok, i took another look at that motor driver, it should work but it needs two sources of power run to it because it is unable to regulate the 12v input to 5volts.
so i think to wire it up you need to run a tap off the VCC on the arduino to the VMOT on the driver board, and that provides power to the motor. then you also need to run a tap off the +5v to the VDD input.
not a big deal.
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Thank you very much, when my project is ready, i'll show it to you. One more think - what do you think for replacing the two potentiometers with a rotary encoder like this one for example: http://www.sparkfun.com/products/9117
Best regards
Y.Dimitrov
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I am sure it can be done, but they do not quite work the same wasy as a potentiometer, so they would not be fit for a direct replacement. You would have to rework the code to accept them.
You would have to be very tight with the code you write as the Chronos 2.0 code already pushes the limits on the memory of the Arduino.
Honestly, unless there is something the rotary encoder can do better than the potentiometers, i would not bother.
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I used the ladyada motorshield on the first version of Chronos 1.0, i dont recommend it because it is a pin hog and the library for it is also a memory hog. Moving to either the Big easy driver from sparkfun or the Polulu 4988 driver (which i have now used in 4 different Chronos rails) offers better control, less pins, and less programming memory requirements.
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bad day, this guys send me a UNO R3! now i have 2 of this!
and i will finish this weekend the electronic!
i use the .23! for upload! the display show me some incorrect thinks!
i will see tomorrow the motor its working!
Dirk
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Hello again,
I'm almost ready with my Chronos rail..finally found a good stepper.
Can I place the A4988 driver instead of Big Easy..what do you think?
Here is the driver specifications:
http://www.pololu.com/catalog/product/1182
Thank you and I'm waiting for the Chronos 2 scheme and code
Best Regards
Y.Dimitrov
Actually that may do just fine. I have not tried it. It says it supports 16th step, meaning it should have a microstep resolution of 3,200 steps per rev, so it should be a perfectly good direct replacement for the big easy.
I might have to order one and experiment around.
OK OK OK so the code, and the schematic, i have honestly been just SWAMPED with a new project i am working on, but i really need to get this stuff out. So tell ya what, tonight ill try to get the code prepped for upload, and get the new schematic uploaded.
Ok buddy, New schematic and code are both up in the files section in the Chronos 2.0 folder. If you have any questions let me know, you DO need the newsoftserial library, it can be found at http://arduiniana.org/libraries/newsoftserial/
Last edit: christopher field 2012-05-19
hello iam confuse!
http://arduiniana.org/libraries/newsoftserial/
......
Download
The latest version of NewSoftSerial is available here: NewSoftSerial12.zip. Note: don’t download this if you have Arduino 1.0 or later. As of 1.0, NewSoftSerial is included in the Arduino core (named SoftwareSerial).
.........
?
i need this library or not? Step buy Step i understand this Arduino system !
i hope next Weekend i finish the Electronic and i can make a test before i buy the real!
i buy a Arduino UNO R3 ( before coming out your actual List) and i have some error cod's, iam not a programmer for i can fix this problem! i buy a Arduino UNO and will tray again upload the software!
Dirk
Last edit: mexicodirk 2012-06-19
I use Arduino .23 instead of 1.0 so yeah, the new R3 does not seem to work on .23.
I do have an R3 and i plan to try to get the Chronos code working on it. However i have not yet had time.
You will need the library for the Arduino .23 however. the .23 can be downloaded off the arduino website
ok, i took another look at that motor driver, it should work but it needs two sources of power run to it because it is unable to regulate the 12v input to 5volts.
so i think to wire it up you need to run a tap off the VCC on the arduino to the VMOT on the driver board, and that provides power to the motor. then you also need to run a tap off the +5v to the VDD input.
not a big deal.
Hello
Thank you very much, when my project is ready, i'll show it to you. One more think - what do you think for replacing the two potentiometers with a rotary encoder like this one for example:
http://www.sparkfun.com/products/9117
Best regards
Y.Dimitrov
I am sure it can be done, but they do not quite work the same wasy as a potentiometer, so they would not be fit for a direct replacement. You would have to rework the code to accept them.
You would have to be very tight with the code you write as the Chronos 2.0 code already pushes the limits on the memory of the Arduino.
Honestly, unless there is something the rotary encoder can do better than the potentiometers, i would not bother.
i buy this and i hope its o.k.
http://www.amazon.com/gp/product/B0044MVM9I/ref=oh_details_o00_s00_i00
with the library i understand! only i dond have expirience for programmin and change the code for work with R3!
Thanks
Dirk
Last edit: mexicodirk 2012-06-21
that one should work fine with Arduino 23
i hope! ah you use a little motorshield, this its better then the from Cronos 1 ?
Huh?
I used the ladyada motorshield on the first version of Chronos 1.0, i dont recommend it because it is a pin hog and the library for it is also a memory hog. Moving to either the Big easy driver from sparkfun or the Polulu 4988 driver (which i have now used in 4 different Chronos rails) offers better control, less pins, and less programming memory requirements.
bad day, this guys send me a UNO R3! now i have 2 of this!
and i will finish this weekend the electronic!
i use the .23! for upload! the display show me some incorrect thinks!
i will see tomorrow the motor its working!
Dirk