Script per automatizzare il processo di ascolto del Vinile sul bluetooth via RaspberryPi o altri Linux device

autoconnect.py

import bluetooth
from  bluetoothctl import BluetoothctlError, Bluetoothctl #Python3: fix Exceptions syntax
import subprocess
import time
import pulsectl

def setOutAudio(bName):
    try:
        with pulsectl.Pulse() as pulse:
            for  sink in pulse.sink_list():
                if sink.description==bName:
                    pulse.sink_default_set(sink)
                    return
    except Exception as e:
        print(e)

def connetti(addr, bName):
            try: 
                bctl = Bluetoothctl()
                print(bctl.get_output('power on',1))

                print(bctl.get_output('agent on',1))
                print(bctl.get_output('default-agent',1))
                print(bctl.get_output('scan on',4))
                print(bctl.get_output('scan off',1))
		#giusto per sicurezza
                print(bctl.get_output("disconnect %s"%(addr),4))
                print(bctl.get_output("trust %s"%addr,2))
                print(bctl.get_output("pair %s"%addr,2))
                
                print(bctl.get_output("connect %s"%addr,4))
                subprocess.call(['pulseaudio', '-D'])
                setOutAudio(bName)
                try:
                    arecord = subprocess.Popen(['arecord', '-D', 'plughw:1,0','-f','dat'], stdout=subprocess.PIPE)
                    subprocess.check_output(['aplay', '-f', 'dat'], stdin=arecord.stdout)
                    arecord.wait()
                except KeyboardInterrupt:
                    arecord.terminate()
                except Exception as e:
                    print(e)
                print(bctl.get_output("remove %s"%addr,4))
                print(bctl.get_output("quit"))
            except BluetoothctlError as e:
                print(e)

if __name__ == "__main__":
    print("Searching devices...")
    nearby_devices = bluetooth.discover_devices(
                duration=8, lookup_names=True, flush_cache=True)

    print("found %d devices" % len(nearby_devices))
    if len(nearby_devices) > 0:
        print("Connecting to first device")
        for addr, name in nearby_devices:
            try:
                print("  %s - %s" % (addr, name))
                connetti(addr, name)
                break
            except UnicodeEncodeError:
                    print("  %s - %s" % (addr, name.encode('utf-8', 'replace')))