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GPIO management change with the new Rapsberry Pi5 - Printable Version

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GPIO management change with the new Rapsberry Pi5 - pkdick - 10-20-2024

Hello Tim,

While trying to compile some Python scripts with pyinstaller, I discovered that, due to hardware changes, the new Rapsberry Pi5 that I chose for Moode, was no more compatible with the RPI.GPIO library (https://forums.raspberrypi.com/viewtopic.php?t=372507 or https://waldorf.waveform.org.uk/2022/the-one-where-dave-breaks-stuff.html). I was wondering whether or not you were aware about that change ?

Best regards

RE: GPIO management change with the new Rapsberry Pi5 - TheOldPresbyope - 10-20-2024

(10-20-2024, 10:17 AM)pkdick Wrote: Hello Tim,

While trying to compile some Python scripts with pyinstaller, I discovered that, due to hardware changes, the new Rapsberry Pi5 that I chose for Moode, was no more compatible with the RPI.GPIO library (https://forums.raspberrypi.com/viewtopic.php?t=372507 or https://waldorf.waveform.org.uk/2022/the-one-where-dave-breaks-stuff.html). I was wondering whether or not you were aware about that change ?

Best regards

A quick search of the packages installed on a stock moOde 9.1.3 player will show you that RPi.GPIO is not preset but the suggested alternatives are

For example

Code:
rho@sunroom:~ $ sudo apt list --installed|grep -i gpio

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

gpiod/stable,now 1.6.3-1+b3 arm64 [installed]
libgpiod2/stable,now 1.6.3-1+b3 arm64 [installed,automatic]
liblgpio1/stable,now 0.2.2-1~rpt1 arm64 [installed,automatic]
libpigpio-dev/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
libpigpio1/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
libpigpiod-if-dev/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
libpigpiod-if1/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
libpigpiod-if2-1/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
pigpio-tools/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
pigpio/stable,now 1.79-1+rpt1 arm64 [installed]
pigpiod/stable,now 1.79-1+rpt1 arm64 [installed,automatic]
python3-gpiozero/now 2.0-1 all [installed,upgradable to: 2.0.1-0+rpt1]
python3-lgpio/stable,now 0.2.2-1~rpt1 arm64 [installed,automatic]
python3-libgpiod/stable,now 1.6.3-1+b3 arm64 [installed]
python3-pigpio/stable,stable,now 1.79-1+rpt1 all [installed]
python3-rpi-lgpio/now 0.4-1~rpt1 all [installed,upgradable to: 0.6-0~rpt1]
raspi-gpio/stable,now 0.20231127 arm64 [installed]

So many HowTos on the InterWeb™ about the Raspberry Pi are out of date and the topic of gpio usage may be the worst offender.

Regards,
Kent

ETA - To be explicit, the name of the Debian package for RPi.GPIO is python3-rpi.gpio which is not present in the list above.

RE: GPIO management change with the new Rapsberry Pi5 - Tim Curtis - 10-20-2024

The compatibility shim is installed
Code:
pi@moode9:~ $ dpkg -l | grep lgpio
ii  liblgpio1:arm64                      0.2.2-1~rpt1                           arm64        Control GPIO pins via gpiochip devices - shared libraries
ii  python3-lgpio                        0.2.2-1~rpt1                           arm64        Control GPIO pins via gpiochip devices - python3 bindings
ii  python3-rpi-lgpio                    0.6-0~rpt1                             all          Compatibility shim for lgpio emulating the RPi.GPIO API

Script does "import RPi.GPIO as GPIO" and seems to run ok
Code:
pi@moode9:~ $ sudo /var/www/daemon/gpio_buttons.py
bounce=1000ms
btn1, enabled n, gpio 02, pull-up, cmd=
btn2, enabled n, gpio 02, pull-up, cmd=
btn3, enabled n, gpio 02, pull-up, cmd=
btn4, enabled n, gpio 02, pull-up, cmd=
btn5, enabled n, gpio 02, pull-up, cmd=
btn6, enabled n, gpio 02, pull-up, cmd=
btn7, enabled n, gpio 02, pull-up, cmd=
btn8, enabled n, gpio 02, pull-up, cmd=


RE: GPIO management change with the new Rapsberry Pi5 - pkdick - 10-20-2024

Hello Tim and Ken,

I apologize about my question that could appear offending to you: that was not my purpose at all.

Thank you for this clear explanation .

Best regards

RE: GPIO management change with the new Rapsberry Pi5 - Tim Curtis - 10-20-2024

(10-20-2024, 12:46 PM)pkdick Wrote: Hello Tim and Ken,

I apologize about my question that could appear offending to you: that was not my purpose at all.

Thank you for this clear explanation .

Best regards

Your post was perfectly reasonable.

RE: GPIO management change with the new Rapsberry Pi5 - TheOldPresbyope - 10-20-2024

(10-20-2024, 12:52 PM)Tim Curtis Wrote:
(10-20-2024, 12:46 PM)pkdick Wrote: Hello Tim and Ken,

I apologize about my question that could appear offending to you: that was not my purpose at all.

Thank you for this clear explanation .

Best regards

Your post was perfectly reasonable.

Absolutely.

Sorry for the abruptness of my reply. A bad night and lack of morning coffee does that to me Sad 

Regards,
Kent