Re: GPIO lines on RPi4

On 06/18/2020 03:54 PM, jean-michel.friedt@femto-st.fr wrote:
> My approach:
> * build your grc chart from GNU Radio Companion and generate the .py file
> * edit the py file and import pygpio
> * play with the RPi4 GPIO in your python script.
>
> See attached script, with a python server included in the Python script
> to control an RF switch from a GNU Octave TCP/IP client talking to the Python
> TCP/IP server.
>
> I am presenting this approach to hardware control at
> http://jmfriedt.free.fr/sdra_radar.pdf
>
> JM
If you use "Python Module" block, you can write a lot of
non-GnuRadio-esque python, import anything you want, etc, etc. No editing
of the output python required, necessarily.


>
> --
> JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe,
> 25000 Besancon, France
>
> June 18, 2020 9:40 PM, "Da Fy" <diver863uk@gmail.com> wrote:
>
>> Hi All, does anyone have an example of how to control GOIO lines on the RPi4 from within a GRC
>> flowgraph. I'm guessing it's an OOT module.
>>
>> I need to generate a signal of a few 100Hz & control GPIO lines at various points though the cycle.
>>
>> Alternatively, I could generate the signal & lines with external hardware & read them with
>> GnuRadio.
>>
>> Tnx, Dave