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MODBUS for Circuit Python
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MODBUS for Circuit Python

by Freeno83 on Sun Feb 21, 2021 10:48 pm

I wanted to check if any one has a working version of modbus for Circuit Python.

It seems there are several available for python but would require at least some changes to work with CP.

Wanting to check if anyone has been through this already.

Thanks,

Nick

Freeno83
 
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Joined: Sat Apr 04, 2020 6:31 pm

Re: MODBUS for Circuit Python

by tannewt on Mon Feb 22, 2021 5:22 pm

I don't know of a CircuitPython modbus library. If you do make one, then please share it in the community bundle: https://github.com/adafruit/CircuitPyth ... ty_Bundle/

tannewt
 
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Re: MODBUS for Circuit Python

by Freeno83 on Mon Feb 22, 2021 8:13 pm

@tannewt that I what my search so far has revealed. If someone has written a modbus library for CP they are keeping it very well hidden :)

I have started to write one which will basically merge together minimalmodbus for python desktop and busio, cutting it down to be just a Client with bit and holding register read/write functions.

Basically what I want it for is to be able to control this inexpensive VFD:

https://cdn.automationdirect.com/static ... 2drive.pdf

I think once I have something working I would post back to this forum at first to see if anyone is interested to test.

Freeno83
 
Posts: 8
Joined: Sat Apr 04, 2020 6:31 pm

Please be positive and constructive with your questions and comments.