offset in the output numbers of the powerModule

[bltzr]

in https://github.com/nodesign/weio/blob/master/examples/actuators/powerModule/main.py#L22 with just a print(a) added before line 25

here's what I get when cycling through the ouptuts: there's an offset between the software output and the physical one

here's the mapping: SW output (a): physical output 0: 7 1: 6 2: 5 3: 4 4: 3 5: 2 6: 1 7: 0 8: 15 9: 14 and so on...

[ks156]

I checked the schematic and there's a strange swapping between the shift register and the darlington arrays. So, can you replace this part: https://github.com/nodesign/weio/blob/master/things/output/power/powerModule.py#L66-L67 by

        if pin <= 7:
             mask = value << (7-pin)
             self.output = (self.output ^ mask)
        else
             mask = value << (15-pin)
             self.output = (self.output ^ mask) << 8

and check if the pin are in the correct order ?

I attach the complete file on gist if it's easier for you : https://gist.github.com/ks156/29a20170c7189738090a

Thanks in advance,

Paul

[bltzr]

I'm running the powerModule example. I have just added a print(a) after pwr.digitalWrite

I've plugged an LED strip to output 0 with this change: my LED just turns on on 0 and 8 (and turns off on 1 and 9) for output 1, it's on for 8 and 14 for output 2, that's 8 and 13 and so on...

when plugging on outputs >= 8 the physical output is lit between a=(15-ouput) and a=7 e.g. for a=14 the LED is on between 1 and 7 for a=9, LED is on between 6 and 7

[ks156]

Here's a new version with a correct remapping : https://gist.github.com/ks156/29a20170c7189738090a

[bltzr]

Yes... Almost correct ;-)

Actually it had to be reversed: self.mapping = [8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7] And then it works just fine !!!! Thanks for your help !

[ks156]

Thank you @bltzr. I've created a pull request. I'll see if @ukicar can confirm.

[ukicar]

Thank you guys for this help and research. The error was caused by the difference in wiring from my original prototype and the one that came from 8devices. I fixed also portwrite function in this commit https://github.com/nodesign/weio/commit/7628fe6e688f891f70cb005de20f0039eaab9c23 now powerModule works as expected.

thank you again!

[ks156]

Nice, thank you @ukicar. Can you confirm that the schematics here https://github.com/nodesign/weioPowerModule is up-to-date with the actual prod version ? My first mapping (https://gist.github.com/ks156/29a20170c7189738090a#file-powermodule-py-L67) has been written from the schematic, but is actually wrong.