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Unread 23-08-2016, 14:57
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asid61 asid61 is offline
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AKA: Anand Rajamani
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Re: CAN to PWM converter?

Quote:
Originally Posted by AdamHeard View Post
if it were a COTS converter for FRC it would likely be in the $20-30 range (if not more).

You also give up most of the usefulness of CAN while doubling your number of control system connections.
Forgive me, but I don't know enough about CAN to see where $20 to $30 came from. I was looking up general-purpose CAN controllers and microcontrollers and found options in the $1-3 range, and PCBs should only cost $1-2 tops. What would drive up the cost?

Quote:
Originally Posted by Chris is me View Post
I don't think people actually invest in the SRXs simply because they prefer the wiring layout of a CAN system. If you're using SRXs and CAN, it's to take advantage of the features that require the CAN bus (e.g. PID). These features don't become a thing on other speed controllers just by converting PWM to CAN. It's not a good idea.
That's pretty fair. But if you could do it for cheap or wanted to try out CAN in general, a cheap converter would be useful. Plus, it would be easy to go from converter to SRX without changing much code.
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