def _initialise():
"""INTERNAL. Initialise the matrix."""
global _initialised
global _serial_device
global _pixel_map
if not _initialised:
if configuration.mcu_enabled():
if not os.path.exists('/dev/serial0'):
err_str = "Could not find serial port - are you sure it's enabled?"
raise serial.serialutil.SerialException(err_str)
_debug_print("Opening serial port...")
_serial_device = serial.Serial("/dev/serial0",
baudrate=250000,
timeout=2)
if _serial_device.isOpen():
_debug_print("OK.")
else:
print("Error: Failed to open serial port!")
sys.exit()
_initialised = True
else:
print(
"Error: pi-topPULSE is not initialised. Please make sure that you have installed 'pt-peripheral-cfg' package"
)
sys.exit()
def _initialise():
"""INTERNAL. Initialise the matrix."""
global _initialised
global _serial_device
global _pixel_map
if not _initialised:
if configuration.mcu_enabled():
if not path.exists('/dev/serial0'):
err_str = "Could not find serial port - are you sure it's enabled?"
raise serialutil.SerialException(err_str)
PTLogger.debug("Opening serial port...")
_serial_device = Serial("/dev/serial0", baudrate=250000, timeout=2)
if _serial_device.isOpen():
PTLogger.debug("OK.")
else:
PTLogger.info("Error: Failed to open serial port!")
exit()
_initialised = True
else:
PTLogger.info("Error: pi-topPULSE is not initialised. Call ptpulse.configuration.initialise() ptpulse.configuration.enable_device()")
exit()
def stream_audio():
"""Start recording on the pi-topPULSE microphone - returns a generator yielding audio data as it is read in."""
global _thread_running
global _continue_writing
if not configuration.mcu_enabled():
print("Error: pi-topPULSE is not initialised.")
sys.exit()
if _thread_running == False and _continue_writing == False:
_continue_writing = True
return _record_audio()
else:
print("Microphone is already recording!")
def record():
"""Start recording on the pi-topPULSE microphone to a file"""
global _thread_running
global _continue_writing
global _recording_thread
if not configuration.mcu_enabled():
print("Error: pi-topPULSE is not initialised.")
sys.exit()
if _thread_running == False and _continue_writing == False:
_thread_running = True
_continue_writing = True
_recording_thread = Thread(group=None, target=_thread_method)
_recording_thread.start()
else:
print("Microphone is already recording!")
def record():
"""Start recording on the pi-topPULSE microphone."""
global _thread_running
global _continue_writing
global _recording_thread
if not configuration.mcu_enabled():
PTLogger.info("Error: pi-topPULSE is not initialised.")
exit()
if _thread_running is False:
_thread_running = True
_continue_writing = True
_recording_thread = Thread(group=None, target=_thread_method)
_recording_thread.start()
else:
PTLogger.info("Microphone is already recording!")