juanmf
commented
8 months ago It should be fairly simple to add the stepper side of it, given:
- Pinout description. (direction, step, microstep mode pins, sleep, halt, etc) & their on/off values (HIGH, LOW)
- micro-stepping pins values => mode resolution
For you to test, also provide your motor's:
- model name
- minPPS & maxPPS
-
SPR (steps per rev.)
Currently I'm focusing on my main project, this is a spin-off. So I'm frequently adding features as needed from a client side perspective. For more hardware implementations I'd appreciate the details requested above so I can just write the code.
Once I provide these two implementations it should be straight forward for you to test. I have only used full-step mode because I need the torque. So If you want to test micro-stepping too, that'd be cool. Thanks
** Might require a little more work actually, as on-board driver chip is TB6612, which is a H-bridge, also used for CD motors, by means pf duty cycle. DRV8825 drivers use microS pulses for logic signal then they handle the steppers accordingly. I bought this one HRB8825 Stepper Motor HAT Board for Raspberry Pi Series I was planning to use with my final product, because it should be more straight forwards as it uses 8825 TI chips. For now using basic DRV8825 boards.
https://forum.arduino.cc/t/tb6612-and-a-unipolar-stepper-motor-103h548-0440/608241/3 Probable source of good driving example: https://github.com/waspinator/AccelStepper/blob/master/src/AccelStepper.cpp#L472
tomhaines
Do you have plans to add support for the Adafruit Motorkit?
I am using this extensively in a project, but the supplied MotorKit libraries are fairly rudimentary. I would be happy to help test on my hardware.