initial work on buttons

This commit is contained in:
Karl Hudgell 2024-09-20 17:23:30 +01:00
parent 3167ab25d7
commit ad276591fc
2 changed files with 56 additions and 0 deletions

56
buttons.py Normal file
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import os
import RPi.GPIO as GPIO
import time
from dotenv import load_dotenv
from lib.mqtt import create_client, update_disc, control_player, create_config, check_current_disc
# Load the .env file
load_dotenv()
# Define the MQTT server details
broker = os.environ.get("broker")
port = int(os.environ.get("port"))
# MQTT username and password
username = os.environ.get("username")
password = os.environ.get("password")
#print(f"Broker: {broker}, Port: {port}, Username: {username}")
client = create_client(broker, port, username, password)
create_config(client)
# Set up GPIO pins for each button
BUTTON_PINS = [17, 18, 27] # Replace with your GPIO pin numbers
GPIO.setmode(GPIO.BCM) # Use BCM numbering
# Set up each button pin as input with internal pull-up resistors
for pin in BUTTON_PINS:
GPIO.setup(pin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# Callback functions to handle button presses
def button_callback_1(channel):
print("Button 1 pressed!")
control_player(client, "PLAY")
def button_callback_2(channel):
print("Button 2 pressed!")
control_player(client, "PAUSE")
def button_callback_3(channel):
print("Button 3 pressed!")
# Add event detection for each button press
GPIO.add_event_detect(BUTTON_PINS[0], GPIO.FALLING, callback=button_callback_1, bouncetime=200)
GPIO.add_event_detect(BUTTON_PINS[1], GPIO.FALLING, callback=button_callback_2, bouncetime=200)
GPIO.add_event_detect(BUTTON_PINS[2], GPIO.FALLING, callback=button_callback_3, bouncetime=200)
try:
# Keep the script running to detect button presses
while True:
time.sleep(1) # Sleep to reduce CPU usage
except KeyboardInterrupt:
pass
finally:
GPIO.cleanup() # Clean up GPIO on exit

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media_change.sh Normal file → Executable file
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