I’m looking for a possibility to manage 4 stepper motors simultaneously.
Thanks to GHI there is a Stepper L6470 Module (SPI).
But as I can see, there is no any main-board with more than two SPI ports. Also I did not find any extension module that can provide more additional SPI interfaces.
By reading the forum I found that there is a possibility somehow use PWM output for controlling the stepper motor. It was a piece of code but no any circuit schema.
Another question is a stepper motor type (model). I’ve investigated many tech papers but did not find range of voltage and circuit for connecting to L6470 module or PWM output (if it possible).
So there are questions:
- How to connect more than two stepper motors to the any mainboard?
- Is there any issues with threads in .net micro Framework? I meaning I would like to turn all the code that supports stepper engines into separate parallel threads.
- Can you please give me a links to the stepper motors that can be controlled by L6470 or PWM output.
PS: I have enough experience with .net framework but I’m novice in .net micro framework and constructing of hardware. So any help is welcome.