def discover_devices(self):
# Get the device inventory
devices = ul.get_daq_device_inventory(InterfaceType.USB)
#check for USB-1208LS
self.device = next(
(device
for device in devices if "USB-1208LS" in device.product_name),
None)
if self.device != None:
# Create the DAQ device from the descriptor
# For performance reasons, it is not recommended to create and release
# the device every time hardware communication is required.
# Create the device once and do not release it
# until no additional library calls will b e made for this device
# (typically at application exit).
ul.create_daq_device(self.board_num, self.device)
ul.flash_led(self.board_num)
ul.a_input_mode(self.board_num, AnalogInputMode.SINGLE_ENDED)
ul.flash_led(self.board_num)
self.ai_props = AnalogInputProps(self.board_num)
return True
return False
def flash_led(self):
try:
# Flash the device LED
ul.flash_led(self.board_num)
except ULError as e:
self.show_ul_error(e)
def flash_led(self):
try:
ul.flash_led(self.board_num)
except ULError as e:
self.show_ul_error(e)
