[ANNOUNCE] SqueezeButtonPi - Tool to use buttons and rotary encoders on a RPi

[paul-]

That's how python is interfacing with the GPIO. The import alone should not do it. The phatbeat python code is resetting all of the board GPIO when you start it.

https://github.com/pimoroni/phat-bea...at/__init__.py

You will need to make you own version of the the phatbeat library, remove all of the references to the inputs.

[wtnh]

I had success getting an encoder to work. Thanks to others in this thread for ideas! Hopefully, this will help anyone trying to get this working. This is on piCorePlayer 6.1.
My main goal was jivelite navigation (not volume). I used one of these generic encoders:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I wired it to the following GPIO pins, similar to what was noted in a previous thread:

SW to GPIO26 (physical pin 37)
DT to GPIO20 (physical pin 38)
CLK to GPIO21 (physical pin 40)
+ to 3V3 (physical pin 1)
GND to Ground (physical pin 6)

I then downloaded pcp-sbpd.tcz and pigpio.tcz from the repo. I used this script (thank you @chill) and placed it in the tc user home directory:

#!/bin/sh

# start pigpiod daemon

pigpiod

# give the daemon a moment to start up before issuing the sbpd command

sleep 1

# load uinput module, then set the permission to group writable, so you don't need to run sbpd with root permissions

sudo modprobe uinput

sudo chmod g+w /dev/uinput

# issue the sbpd command

# This command will cause encoder to move selection right or left; Press=Enter; long press=down

sbpd e,20,21,KEY:KEY_LEFT-KEY_RIGHT,4  b,26,KEY:KEY_ENTER,4,0,KEY:KEY_DOWN,500

and this for the User Commands in Tweaks:

/home/tc/sbpd-script.sh

EDIT - Forgot to add that you need to set permissions on the script in the tc home directory to allow it to run:

chmod 755 sbpd-script.sh

Note that I am using KEY_LEFT and KEY_RIGHT for the rotation, and KEY_ENTER for the button press. I also bumped the detent count to 4 because it seemed too sensitive. This allows me to scroll through, e.g. album covers, then select one by pressing the encoder button. I am using a long press to simulate KEY_DOWN, allowing me to scroll down a list (as in tracks as they are displayed in jivelite). This is a little awkward but does the job with a single encoder and no extra buttons.

Also, paul's github repo readme entry is very helpful for understanding the sbpd paramteters: https://github.com/paul-1/SqueezeButtonPi-Daemon

Thanks to @pippin and @paul- for enabling this!

[LiFePO4]

Disregard post. Cancelled portable use case project.

[jedisha]

I had success getting an encoder to work. Thanks to others in this thread for ideas! Hopefully, this will help anyone trying to get this working. This is on piCorePlayer 6.1.
My main goal was jivelite navigation (not volume). I used one of these generic encoders:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I wired it to the following GPIO pins, similar to what was noted in a previous thread:

SW to GPIO26 (physical pin 37)
DT to GPIO20 (physical pin 38)
CLK to GPIO21 (physical pin 40)
+ to 3V3 (physical pin 1)
GND to Ground (physical pin 6)

I then downloaded pcp-sbpd.tcz and pigpio.tcz from the repo. I used this script (thank you @chill) and placed it in the tc user home directory:

#!/bin/sh

# start pigpiod daemon

pigpiod

# give the daemon a moment to start up before issuing the sbpd command

sleep 1

# load uinput module, then set the permission to group writable, so you don't need to run sbpd with root permissions

sudo modprobe uinput

sudo chmod g+w /dev/uinput

# issue the sbpd command

# This command will cause encoder to move selection right or left; Press=Enter; long press=down

sbpd e,20,21,KEY:KEY_LEFT-KEY_RIGHT,4  b,26,KEY:KEY_ENTER,4,0,KEY:KEY_DOWN,500

and this for the User Commands in Tweaks:

/home/tc/sbpd-script.sh

Note that I am using KEY_LEFT and KEY_RIGHT for the rotation, and KEY_ENTER for the button press. I also bumped the detent count to 4 because it seemed too sensitive. This allows me to scroll through, e.g. album covers, then select one by pressing the encoder button. I am using a long press to simulate KEY_DOWN, allowing me to scroll down a list (as in tracks as they are displayed in jivelite). This is a little awkward but does the job with a single encoder and no extra buttons.

Also, paul's github repo readme entry is very helpful for understanding the sbpd paramteters: https://github.com/paul-1/SqueezeButtonPi-Daemon

Thanks to @pippin and @paul- for enabling this!

Hey @wtnh - did you have to change the permissions on the shell script which you created? I can't get this to work and am thinking it may be beacuse of file permissions?

-----EDIT - I have indeed now changed the ownership & permissions of the script (to 755 as per the other shell scripts which are in the /home/tc/ location)

below is the sbpd command that I'm trying to run (copied from Page 1 of this thread: GPIO pins 23 and 24 running rotary encoder and 25 for a play/pause button) HOWEVER, when I execute it I lose sound!

sbpd -d -s e,23,24,VOLM,0 b,25,PLAY,1

any ideas where I'm going wrong? (apoloigies in advance: I'm a bit of a noob!)


thanks,
Paul

[LiFePO4]

^^

My experience with this tool has only been a few hours total, so noob.

But maybe try passing the -t 1 or -t 0 parameters to pigpiod. I believe there's a conflict with your HAT.

Just search in the thread for the posts...

pigpiod -t 0 or pigpiod -t 1

I forget which one applies to HATs. I believe one applies to onboard audio, one to HAT.

So even if you follow the steps to a tee, everyone's audio requirements differ.

GL

[jedisha]

Dear all,

I've been trying somewhat in vain over the last few days to try and get SqueezeButtonPi daemon working on my PiZeroW (and iQaudio PiDIGI AMP+).

The aim is nothing crazy - just a rotary encoder with one push-button to give volume dial + play/pause button controls to pcp.

I've installed pcp-sbpd.tcz on pcp 7.0.0 and have created sbpd-script.sh (as per a previous post from @chill).

I'm trying to get the following commands to function:

sbpd -d -s e,23,24,VOLU,0 b,5,PLAY,1

However when sbpd-script.sh is executed the audio cuts out entirely and I can't seem to get anything out of it unless I reboot (the Pi doesn't crash or anything) Please see below for the script:

#!/bin/sh

# start pigpiod daemon

pigpiod

# give the daemon a moment to start up before issuing the sbpd command

sleep 1

# load uinput module, then set the permission to group writable, so you don't need to run s>

sudo modprobe uinput

sudo chmod g+w /dev/uinput

# issue the sbpd command

# This command will cause encoder to move selection right or left; Press=Enter; long press=>

sbpd -d -s e,23,24,VOLU,0 b,5,PLAY,1

When I created sbpd-script.sh I changed ownership to user 'tc' and changed it's permissions to 755 (to mirror the other shell scripts within the /home/tc/ location)



Also, please see screengrab below for my Squeezelite settings (I believe I've correctly switched volume control to '-V Digital' so as to control the Alsa volume settings with a rotary encoder... or could this be one issue?)



This evening I've noticed that it's when the

pigpiod

command is called that the audio cuts out. Do I need to configure pigpio ?

I'm clearly out of my depth, but would love to get this working, so any help HUGELY appreciated, and if there's any further info which may help solve this then do let me know and I'll supply!


thanks so much guys!
Paul

[jedisha]

^^

My experience with this tool has only been a few hours total, so noob.

But maybe try passing the -t 1 or -t 0 parameters to pigpiod. I believe there's a conflict with your HAT.

Just search in the thread for the posts...

pigpiod -t 0 or pigpiod -t 1

I forget which one applies to HATs. I believe one applies to onboard audio, one to HAT.

So even if you follow the steps to a tee, everyone's audio requirements differ.

GL

@LiFePO4 - so sorry, I just added a post and completely missed your reply to my earlier post - I'll look into this right now! Thanks so much for the reply!

Paul

[Paul Webster]

Which physical pins have you connected wires to?
I ask because there is always the chance of confusion with pin numbers.
See https://pinout.xyz/

[armaster]

Hi,

I'm using RPI 3B+, HiFiBerry AMP2 HA. I'v only installed pcp-sbpd.tct with no settings and not running any command. I get sound from AMP2. But if I run sudo pigpiod, no sound comes from AMP2.

Some help please...

[jd68]

@armaster,

post #385 might be useful in your case.