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using PCA9685 with mcp2221 on pc windows with python/circuit
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using PCA9685 with mcp2221 on pc windows with python/circuit

by jf_NH on Thu Jun 03, 2021 1:35 pm

Hi
This is a newbie question. Sorry if I missed some obvious stuff.

I want to run a PCA 9685 using circuit python and blinka on a pc windows through a mcp2221 breakout.

I have all the hardware and I successfully ran the tutorial:
https://learn.adafruit.com/circuitpytho ... th-mcp2221

I have also installed the circuit python library for the pca 9685
All software installation were done with pip and all succeeded

Now when I try to adapt the tutorial to the pca 9685. it does not work "out of the box" and I have no clue if I have to do some change on the code what these change have to be.
the tagline "CircuitPython Libraries on any Computer with MCP2221" from the tutorial seems to indicate it should be easy..
Any pointer that will get me started will be greatly appreciated.
Thank you

jf_NH
 
Posts: 4
Joined: Tue Mar 23, 2021 4:15 am

Re: using PCA9685 with mcp2221 on pc windows with python/cir

by tannewt on Thu Jun 03, 2021 3:31 pm

Please post any error messages you are getting.

tannewt
 
Posts: 2428
Joined: Thu Oct 06, 2016 8:48 pm

Re: using PCA9685 with mcp2221 on pc windows with python/cir

by jf_NH on Sat Jun 05, 2021 3:29 am

Hello
I finally found my problem:
when I was switching from the MSA310 breakout to the PCA9685 I was also using different jumpers . well I accidentally found that one of the jumper was not electrically connecting well. I replaced it ==> problem solved
Sorry for bothering the forum with a useless question

jf_NH
 
Posts: 4
Joined: Tue Mar 23, 2021 4:15 am

Please be positive and constructive with your questions and comments.