[Plugin] GPIO Buttons: Control Volumio 2/ Volumio 3 with buttons

Plugins
165

Thanks - I appreciate your help, I’d been going round in circles until this evening

Oh and I have had the rotary encoder working fine using GPIO 5

166

Last thing to try, very basic.

  • Make sure you only have GPIO Buttons installed and activated
  • Remove all wires from the GPIO headers.
  • Only activate PLAY on GPIO 17, disable all others
  • Use a single wire between GPIO17 and GND
    Does the PLAY event react to it if you connect and disconnect the wire?
167

All wires disconnected, GPIO button installed and active, set for gpio17, player playing, pin 17 open:

volumio@volumio:~$ gpioinfo gpiochip0
gpiochip0 - 54 lines:
line 0: “ID_SDA” unused input active-high
line 1: “ID_SCL” unused input active-high
line 2: “GPIO2” unused input active-high
line 3: “GPIO3” unused input active-high
line 4: “GPIO4” unused input active-high
line 5: “GPIO5” unused input active-high
line 6: “GPIO6” unused input active-high
line 7: “GPIO7” unused input active-high
line 8: “GPIO8” unused input active-high
line 9: “GPIO9” unused input active-high
line 10: “GPIO10” unused input active-high
line 11: “GPIO11” unused input active-high
line 12: “GPIO12” unused input active-high
line 13: “GPIO13” unused input active-high
line 14: “GPIO14” unused input active-high
line 15: “GPIO15” unused input active-high
line 16: “GPIO16” unused input active-high
line 17: “GPIO17” unused input active-high
line 18: “GPIO18” unused input active-high
line 19: “GPIO19” unused input active-high
line 20: “GPIO20” unused input active-high
line 21: “GPIO21” unused input active-high
line 22: “GPIO22” “mute” output active-high [used]
line 23: “GPIO23” unused input active-high
line 24: “GPIO24” unused input active-high
line 25: “GPIO25” unused input active-high
line 26: “GPIO26” unused input active-high
line 27: “GPIO27” unused input active-high
line 28: “PCIE_RP1_WAKE” unused output active-high
line 29: “FAN_TACH” unused input active-high
line 30: “HOST_SDA” unused input active-high
line 31: “HOST_SCL” unused input active-high
line 32: “ETH_RST_N” “phy-reset” output active-low [used]
line 33: “-” unused input active-high
line 34: “CD0_IO0_MICCLK” “cam0_reg” output active-high [used]
line 35: “CD0_IO0_MICDAT0” unused input active-high
line 36: “RP1_PCIE_CLKREQ_N” unused input active-high
line 37: “-” unused input active-high
line 38: “CD0_SDA” unused input active-high
line 39: “CD0_SCL” unused input active-high
line 40: “CD1_SDA” unused input active-high
line 41: “CD1_SCL” unused input active-high
line 42: “USB_VBUS_EN” unused output active-high
line 43: “USB_OC_N” unused input active-high
line 44: “RP1_STAT_LED” “PWR” output active-low [used]
line 45: “FAN_PWM” unused output active-high
line 46: “CD1_IO0_MICCLK” “cam1_reg” output active-high [used]
line 47: “2712_WAKE” unused input active-high
line 48: “CD1_IO1_MICDAT1” unused input active-high
line 49: “EN_MAX_USB_CUR” unused output active-high
line 50: “-” unused input active-high
line 51: “-” unused input active-high
line 52: “-” unused input active-high
line 53: “-” unused input active-high

Same again but pin 17 to ground:

volumio@volumio:~$ gpioinfo gpiochip0
gpiochip0 - 54 lines:
line 0: “ID_SDA” unused input active-high
line 1: “ID_SCL” unused input active-high
line 2: “GPIO2” unused input active-high
line 3: “GPIO3” unused input active-high
line 4: “GPIO4” unused input active-high
line 5: “GPIO5” unused input active-high
line 6: “GPIO6” unused input active-high
line 7: “GPIO7” unused input active-high
line 8: “GPIO8” unused input active-high
line 9: “GPIO9” unused input active-high
line 10: “GPIO10” unused input active-high
line 11: “GPIO11” unused input active-high
line 12: “GPIO12” unused input active-high
line 13: “GPIO13” unused input active-high
line 14: “GPIO14” unused input active-high
line 15: “GPIO15” unused input active-high
line 16: “GPIO16” unused input active-high
line 17: “GPIO17” unused input active-high
line 18: “GPIO18” unused input active-high
line 19: “GPIO19” unused input active-high
line 20: “GPIO20” unused input active-high
line 21: “GPIO21” unused input active-high
line 22: “GPIO22” “mute” output active-high [used]
line 23: “GPIO23” unused input active-high
line 24: “GPIO24” unused input active-high
line 25: “GPIO25” unused input active-high
line 26: “GPIO26” unused input active-high
line 27: “GPIO27” unused input active-high
line 28: “PCIE_RP1_WAKE” unused output active-high
line 29: “FAN_TACH” unused input active-high
line 30: “HOST_SDA” unused input active-high
line 31: “HOST_SCL” unused input active-high
line 32: “ETH_RST_N” “phy-reset” output active-low [used]
line 33: “-” unused input active-high
line 34: “CD0_IO0_MICCLK” “cam0_reg” output active-high [used]
line 35: “CD0_IO0_MICDAT0” unused input active-high
line 36: “RP1_PCIE_CLKREQ_N” unused input active-high
line 37: “-” unused input active-high
line 38: “CD0_SDA” unused input active-high
line 39: “CD0_SCL” unused input active-high
line 40: “CD1_SDA” unused input active-high
line 41: “CD1_SCL” unused input active-high
line 42: “USB_VBUS_EN” unused output active-high
line 43: “USB_OC_N” unused input active-high
line 44: “RP1_STAT_LED” “PWR” output active-low [used]
line 45: “FAN_PWM” unused output active-high
line 46: “CD1_IO0_MICCLK” “cam1_reg” output active-high [used]
line 47: “2712_WAKE” unused input active-high
line 48: “CD1_IO1_MICDAT1” unused input active-high
line 49: “EN_MAX_USB_CUR” unused output active-high
line 50: “-” unused input active-high
line 51: “-” unused input active-high
line 52: “-” unused input active-high
line 53: “-” unused input active-high

168

mmmm, no idea’s anymore.
For whatever reason it’s not registering GPIO17, let’s see if someone else ahs any suggestion.

169

Thanks, I appreciate your time and help, very kind of you.

170

sorry but I can’t give much help regarding this problem, I have no clue on why the GPIO17 is not registered

I only noticed one possible issue on the connection diagram:

I see three different push-button connected in parallel to the same pin, with three different functionalities assigned.

This won’t work, one pin can be used for only one trigger action, because the pin won’t be able to distinguish which button out of the three has being pressed.

Please post a screenshot of your setting of the GPIO Buttons plugin, the issue might be there.

171

This drawing was for a specific existing keypad, where PLAY/STOP/PAUSE mimic volumio toggle, hence these three are combined.
But even with a bare wire between GND-GPIO17, the GPIO is not registering. So I have no idea’s anymore.

172

Good morning. Yes the schematic was purely to show the pull down arrangement on the input channels - I have only one switch on GPIO 17. I am going to remove my DAC (IQaudIO DAC Plus) just in case that’s upsetting things or there is an issue with the header - unlikely I know as both the rotary encoder and GPIO control work, but I can’t think of anything else to try. Then if necessary I’ll just load a standard pi operating system to the board and check the GPIO operation from the Pi OS. If nothing works I suppose I’ll just buy a new Pi5.

173

Screenshot 2025-02-20 at 09.43.14
Screenshot 2025-02-20 at 09.43.142892×1422 132 KB

174

There doesn’t appear to be anything wrong with my Rpi5, installed RPI OS ran a simple python program using gpiozero using gpio17 to switch a led on gpio14. Worked perfectly and showed up in gpiomon

line 13: GPIO13 unused input active-high
line 14: GPIO14 lg output active-high [used]
line 15: GPIO15 unused input active-high
line 16: GPIO16 unused input active-high
line 17: GPIO17 lg input active-high [used pull-up]
line 18: GPIO18 unused input active-high

So I’m completely lost with why GPIO Buttons won’t work for me.

As a final test I have done a clean install on a USB 2.5” SSD using the hdmi0 as the output. I have installed and enabled GPIO Buttons, GPIO Control and Rotary Encoder II.

GPIO Buttons on GPIO 26 - Enable Play/Pause
GPIO Control on GPIO 14 – Led On Play, Led Off on Stop
Rotary Encoder II – Pin A GPIO 5, Pin B GPIO 6, Pushbutton GPIO 27 (short press Play, long press Random, double press Stop)

The GPIO button(26) does not show in gpiomon, other pins show correctly – see below

Encoder works perfectly with the Play led, looking in the log, I can see the encoder push button triggers an entry each time. As a test, I substituted the encoder pushbutton for the switch and that worked fine so I know my hardware is correct.

Looking at the log, there is no event triggered when the switch is pressed. It’s as if the plugin isn’t installed, but it is and there were no errors during the installation and the plugin management screen is all green.

gpiochip0 - 54 lines:
line 0: “ID_SDA” unused input active-high
line 1: “ID_SCL” unused input active-high
line 2: “GPIO2” unused input active-high
line 3: “GPIO3” unused input active-high
line 4: “GPIO4” unused output active-high
line 5: “GPIO5” “rotary@5” input active-high [used]
line 6: “GPIO6” “rotary@5” input active-high [used]
line 7: “GPIO7” unused input active-high
line 8: “GPIO8” unused input active-high
line 9: “GPIO9” unused input active-high
line 10: “GPIO10” unused input active-high
line 11: “GPIO11” unused input active-high
line 12: “GPIO12” unused input active-high
line 13: “GPIO13” unused input active-high
line 14: “GPIO14” “?” output active-high [used]
line 15: “GPIO15” unused input active-high
line 16: “GPIO16” unused input active-high
line 17: “GPIO17” unused input active-high
line 18: “GPIO18” unused input active-high
line 19: “GPIO19” unused input active-high
line 20: “GPIO20” unused input active-high
line 21: “GPIO21” unused input active-high
line 22: “GPIO22” unused input active-high
line 23: “GPIO23” unused input active-high
line 24: “GPIO24” unused input active-high
line 25: “GPIO25” unused input active-high
line 26: “GPIO26” unused input active-high
line 27: “GPIO27” “KEY_POWER” input active-low [used]
line 28: “PCIE_RP1_WAKE” unused input active-high
line 29: “FAN_TACH” unused input active-high
line 30: “HOST_SDA” unused input active-high
line 31: “HOST_SCL” unused input active-high
line 32: “ETH_RST_N” “phy-reset” output active-low [used]
line 33: “-” unused input active-high
line 34: “CD0_IO0_MICCLK” “cam0_reg” output active-high [used]
line 35: “CD0_IO0_MICDAT0” unused input active-high
line 36: “RP1_PCIE_CLKREQ_N” unused input active-high
line 37: “-” unused input active-high
line 38: “CD0_SDA” unused input active-high
line 39: “CD0_SCL” unused input active-high
line 40: “CD1_SDA” unused input active-high
line 41: “CD1_SCL” unused input active-high
line 42: “USB_VBUS_EN” unused output active-high
line 43: “USB_OC_N” unused input active-high
line 44: “RP1_STAT_LED” “PWR” output active-low [used]
line 45: “FAN_PWM” unused output active-high
line 46: “CD1_IO0_MICCLK” “cam1_reg” output active-high [used]
line 47: “2712_WAKE” unused input active-high
line 48: “CD1_IO1_MICDAT1” unused input active-high
line 49: “EN_MAX_USB_CUR” unused output active-high
line 50: “-” unused input active-high
line 51: “-” unused input active-high
line 52: “-” unused input active-high
line 53: “-” unused input active-high