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GPIO controls
Posted: Sun Apr 12, 2026 12:20 am
by AZSSG
I'm trying to have a setup where i have 2 buttons from the gpio control volume up and down in hudiy and also show the overlay with the percentage. I have very little knowledge in coding but i am learning slowly. I learned to use gpiozero and setup the buttons to perform simple actions, I just don't know how to incorporate everything in to hudiy. I also tried to modify the volume.py in the gpio examples from the github but I couldn't seem to get the buttons to do what I want. Just wondering if I could get some help with this
Re: GPIO controls
Posted: Sun Apr 12, 2026 12:42 am
by hudiy
To control the volume, you can use the toggle_output_muted, output_volume_down, and output_volume_up actions - a toast with the volume level will appear automatically when using them.
https://github.com/wiboma/hudiy/blob/ma ... md#actions
Here is the modified Volume.py from the examples that uses a Button instead of a RotaryEncoder:
Code: Select all
import common.Api_pb2 as hudiy_api
import time
from common.Client import Client, ClientEventHandler
from gpiozero import Button
class EventHandler(ClientEventHandler):
def __init__(self):
self._mute_button = Button(26, bounce_time=0.05)
self._up_button = Button(16, bounce_time=0.05)
self._down_button = Button(25, bounce_time=0.05)
def on_hello_response(self, client, message):
print(
"received hello response, result: {}, app version: {}.{}, api version: {}.{}"
.format(message.result, message.app_version.major,
message.app_version.minor, message.api_version.major,
message.api_version.minor))
self._mute_button.when_pressed = lambda: self.send_dispatch_action(
client, "toggle_output_muted")
self._down_button.when_pressed = lambda: self.send_dispatch_action(
client, "output_volume_down")
self._up_button.when_pressed = lambda: self.send_dispatch_action(
client, "output_volume_up")
def send_dispatch_action(self, client, action_name):
dispatch_action = hudiy_api.DispatchAction()
dispatch_action.action = action_name
client.send(hudiy_api.MESSAGE_DISPATCH_ACTION, 0,
dispatch_action.SerializeToString())
def main():
client = Client("volume gpio example")
event_handler = EventHandler()
client.set_event_handler(event_handler)
try:
while True:
try:
client.connect('127.0.0.1', 44405)
while True:
if not client.wait_for_message():
break
except Exception:
pass
time.sleep(2)
except KeyboardInterrupt:
pass
finally:
client.disconnect()
if __name__ == "__main__":
main()
By default, in gpiozero, buttons are ACTIVE LOW, which means you need to use GND to trigger them.
Re: GPIO controls
Posted: Sun Apr 12, 2026 2:38 am
by AZSSG
That worked perfect! Thank you!