I believe there was a basic [gpio] object, perhaps from Miller but I don't find it on his site now.
If someone has the source code, maybe we can put it up separately on github.com/pd-externals http://github.com/pd-externals with a pd-lib-builder makefile. It should be a simple C object, so easy to compile.
On Nov 8, 2023, at 6:57 PM, pd-list-request@lists.iem.at wrote:
Message: 1 Date: Wed, 8 Nov 2023 15:14:21 +0100 From: Yann Seznec <yann@yannseznec.com mailto:yann@yannseznec.com> To: pd-list@lists.iem.at mailto:pd-list@lists.iem.at Subject: [PD] Current best practice for GPIO pins on Raspberry Pi? Message-ID: <9052D80B-1595-4402-92D3-066B5A4D3AD7@yannseznec.com mailto:9052D80B-1595-4402-92D3-066B5A4D3AD7@yannseznec.com> Content-Type: text/plain; charset=utf-8
Hello,
I?m wondering what the best option is nowadays for using the GPIO pins on a Raspberry Pi in Pure Data.
Wiring Pi seems to be no longer available, as far as I can tell. I?m not sure what other options there are?
One option suggested elsewhere for inputs was to use the ?retrogame? script to turn GPIO pin activity into keyboard presses and use the [key] object in Pd, but I can?t seem to get that script to work properly yet.
Any suggestions would be great, thanks in advance.
Yann
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com http://danomatika.com/ robotcowboy.com http://robotcowboy.com/
My old 'gpio' object was from 2013. it just issued linux reads and writes to some device. I don't know if it would still work.
I've stuck it on
msp.ucsd.edu/tmp/gpio.c
in case you get desperate enough to want to revive a 10-year-old bit of system hackery :)
Miller
On 11/8/23 19:07, Dan Wilcox wrote:
I believe there was a basic [gpio] object, perhaps from Miller but I don't find it on his site now.
If someone has the source code, maybe we can put it up separately on github.com/pd-externals https://urldefense.com/v3/__http://github.com/pd-externals__;!!Mih3wA!H8fVaWGNsJj7sRtceIBHPZIPU04qP2rE5S5a6i1dbaQIEh_yXEV621KT5eKVtL5rwyCFj8sE0_vMia4$ with a pd-lib-builder makefile. It should be a simple C object, so easy to compile.
On Nov 8, 2023, at 6:57 PM, pd-list-request@lists.iem.at wrote:
Message: 1 Date: Wed, 8 Nov 2023 15:14:21 +0100 From: Yann Seznec yann@yannseznec.com To:pd-list@lists.iem.at Subject: [PD] Current best practice for GPIO pins on Raspberry Pi? Message-ID: 9052D80B-1595-4402-92D3-066B5A4D3AD7@yannseznec.com Content-Type: text/plain;charset=utf-8
Hello,
I?m wondering what the best option is nowadays for using the GPIO pins on a Raspberry Pi in Pure Data.
Wiring Pi seems to be no longer available, as far as I can tell. I?m not sure what other options there are?
One option suggested elsewhere for inputs was to use the ?retrogame? script to turn GPIO pin activity into keyboard presses and use the [key] object in Pd, but I can?t seem to get that script to work properly yet.
Any suggestions would be great, thanks in advance.
Yann
Dan Wilcox @danomatika https://urldefense.com/v3/__http://twitter.com/danomatika__;!!Mih3wA!H8fVaWGNsJj7sRtceIBHPZIPU04qP2rE5S5a6i1dbaQIEh_yXEV621KT5eKVtL5rwyCFj8sE8qO8JMw$ danomatika.com https://urldefense.com/v3/__http://danomatika.com__;!!Mih3wA!H8fVaWGNsJj7sRtceIBHPZIPU04qP2rE5S5a6i1dbaQIEh_yXEV621KT5eKVtL5rwyCFj8sEgd8p0xI$ robotcowboy.com https://urldefense.com/v3/__http://robotcowboy.com__;!!Mih3wA!H8fVaWGNsJj7sRtceIBHPZIPU04qP2rE5S5a6i1dbaQIEh_yXEV621KT5eKVtL5rwyCFj8sE20SnXjQ$
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://urldefense.com/v3/__https://lists.puredata.info/listinfo/pd-list__;!...
The Zynthian project has tackled this problem. Might be some code there (it's all open source).
https://discourse.zynthian.org/t/ecoders-directly-to-the-gpio-of-the-pi-4/47...
https://discourse.zynthian.org/t/encoder-mapping-for-direct-i-o-connection/4...
Cheers
On Wed, Nov 8, 2023, 10:11 AM Dan Wilcox danomatika@gmail.com wrote:
I believe there was a basic [gpio] object, perhaps from Miller but I don't find it on his site now.
If someone has the source code, maybe we can put it up separately on github.com/pd-externals with a pd-lib-builder makefile. It should be a simple C object, so easy to compile.
On Nov 8, 2023, at 6:57 PM, pd-list-request@lists.iem.at wrote:
Message: 1 Date: Wed, 8 Nov 2023 15:14:21 +0100 From: Yann Seznec yann@yannseznec.com To: pd-list@lists.iem.at Subject: [PD] Current best practice for GPIO pins on Raspberry Pi? Message-ID: 9052D80B-1595-4402-92D3-066B5A4D3AD7@yannseznec.com Content-Type: text/plain; charset=utf-8
Hello,
I?m wondering what the best option is nowadays for using the GPIO pins on a Raspberry Pi in Pure Data.
Wiring Pi seems to be no longer available, as far as I can tell. I?m not sure what other options there are?
One option suggested elsewhere for inputs was to use the ?retrogame? script to turn GPIO pin activity into keyboard presses and use the [key] object in Pd, but I can?t seem to get that script to work properly yet.
Any suggestions would be great, thanks in advance.
Yann
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com robotcowboy.com
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Maybe not exactly what you need, outputs only: GPIO ASR
If you need to drive GPIOs with soft PWMs for solenoids or the like, there is an Pd external for Debian Linux, Arm A20 processors, but should work on Raspberry Pis also, since it adds an linux kernel driver using libgpio. It can drive up to 140 GPIOs as PWMs on an Olimex A20.
and needs a kerneldriver:
There was a plan to expand its functionality for standard GPIO use, also encoder for bldc motors, but... time flows by ... and no urgent need ... ;-).
mfg winfried
Am Mittwoch, 8. November 2023, 20:53:32 CET schrieb Andrew Lyons:
The Zynthian project has tackled this problem. Might be some code there (it's all open source).
https://discourse.zynthian.org/t/ecoders-directly-to-the-gpio-of-the-pi-4/47 28/23?page=2
https://discourse.zynthian.org/t/encoder-mapping-for-direct-i-o-connection/4 039
Cheers
On Wed, Nov 8, 2023, 10:11 AM Dan Wilcox danomatika@gmail.com wrote:
I believe there was a basic [gpio] object, perhaps from Miller but I don't find it on his site now.
If someone has the source code, maybe we can put it up separately on github.com/pd-externals with a pd-lib-builder makefile. It should be a simple C object, so easy to compile.
On Nov 8, 2023, at 6:57 PM, pd-list-request@lists.iem.at wrote:
Message: 1 Date: Wed, 8 Nov 2023 15:14:21 +0100 From: Yann Seznec yann@yannseznec.com To: pd-list@lists.iem.at Subject: [PD] Current best practice for GPIO pins on Raspberry Pi? Message-ID: 9052D80B-1595-4402-92D3-066B5A4D3AD7@yannseznec.com Content-Type: text/plain; charset=utf-8
Hello,
I?m wondering what the best option is nowadays for using the GPIO pins on a Raspberry Pi in Pure Data.
Wiring Pi seems to be no longer available, as far as I can tell. I?m not sure what other options there are?
One option suggested elsewhere for inputs was to use the ?retrogame? script to turn GPIO pin activity into keyboard presses and use the [key] object in Pd, but I can?t seem to get that script to work properly yet.
Any suggestions would be great, thanks in advance.
Yann
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com robotcowboy.com
Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
-
Andrew Lyons -
Dan Wilcox -
Miller Puckette -
Winfried Ritsch