Today's Topics:
- Re: How to talk to the Raspberry 4 GPIO and a multiple object question ? (Ingo)
- How to use a DAC expansion board with the RPi4 (Ingo)
- Re: How to use a DAC expansion board with the RPi4 (Peter P.)
- Re: How to use a DAC expansion board with the RPi4 (Ingo)
Message: 1 Date: Thu, 23 Sep 2021 13:47:55 +0200 From: "Ingo" ingo@miamiwave.com To: joseph.larralde@gmail.com, pd-list@lists.iem.at Subject: Re: [PD] How to talk to the Raspberry 4 GPIO and a multiple object question ? Message-ID: 000a01d7b070$d90b2150$8b2163f0$@miamiwave.com
Thanks, Joseph!
An additional Arduino is too large for this one.
I just need to turn on 2 LEDs during startup and everything needs to fit into this case: https://www.berrybase.de/en/new/argon-nanosound-one-case-f-252-r-raspberry-p...
-----Original Message----- From: Pd-list [mailto:pd-list-bounces@lists.iem.at] On Behalf Of Joseph Larralde Sent: Wednesday, September 22, 2021 2:51 PM To: pd-list@lists.iem.at Subject: Re: [PD] How to talk to the Raspberry 4 GPIO and a multiple object question ?
Hi Ingo,
What I do for a project of mine is using an arduino connected to the rx tx pins of the Pi (rx tx voltages must be adapted, though) Then [comport] allows me to get both cards to talk together. It's on a Pi Zero so I don't know for other versions, but I also had to disable the serial console in raspbian lite's config file because it was causing glitches in the serial communication. Now it's working fine with a 115200 baudrate. Hope this helps, I can provide a few more details about this method if necessary.
Joseph Larralde
freelance developer www.josephlarralde.fr
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Today's Topics:
- How to talk to the Raspberry 4 GPIO and a multiple object question ? (Ingo)
Message: 1 Date: Tue, 21 Sep 2021 17:53:46 +0200 From: "Ingo" ingo@miamiwave.com To: pd-list@lists.iem.at Subject: [PD] How to talk to the Raspberry 4 GPIO and a multiple object question ? Message-ID: 000001d7af00$dc90b1d0$95b21570$@miamiwave.com Content-Type: text/plain; charset="us-ascii"
Now that I got most of my software running on the Pi - with much more performance than I expected - I need to be able talk to the GPIO of the RPi 4.
First of all a big thanks again for everybodys help me with the libraries ! ! !
I know there had been some changes a while ago with the RPi GPIO when some way to interfacing with Pd dumped.
I'm not sure what it was anymore - so, how can I connect from Pd atm?
All I need to be able to do for now is turning on a few LEDs.
Does [comport] recognize the GPIO of the RPi 4?
BTW, the libraries are mostly working but I happen to have some trouble with [speedlim] being in 3 different libraries.
It's in Cyclone (which I had been using before and is working fine) and also in maxlib and iemlib.
The latter gives me sometimes trouble but I don't know how I can get rid of single objects in "iemlib".
(Sometimes it outputs a float instead of a list. I have already [t list] in front of it.)
Is it possible or will I have to prepend "cyclone" every time?
Or is there another way to make sure that the cyclone object will be used first instead of the iemlib object?
The libraries are currently loaded in alphabetic order in the ".pdsettings".
Thanks
Ingo
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Message: 2 Date: Thu, 23 Sep 2021 14:03:44 +0200 From: "Ingo" ingo@miamiwave.com To: pd-list@lists.iem.at Subject: [PD] How to use a DAC expansion board with the RPi4 Message-ID: 000b01d7b073$0f18f360$2d4ada20$@miamiwave.com Content-Type: text/plain; charset="us-ascii"
Hi everybody!
I just got a DAC expansion board for my RPi4 but Pd doesn't see it.
https://www.berrybase.de/en/new/argon-nanosound-one-case-f-252-r-raspberry-p i-4?c=2389
Since there is no room for a sound card in such a small box and the RPi headphone out is no good it looks like the only compact way.
Can anybody point me to instruction for making Pd use these DAC expansion boards as a sound card?
They obviously don't show up in the ALSA sound options by default.
Thanks!
Ingo
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Mark Polishook