DAQ read analog HW timed without a background daemon

"""Example: DAQ read analog HW timed without a background daemon.

Demonstrates publishing measurements/commands to a dataset (Nominal Core publisher).

"""

from instro.daq import InstroDAQ
from instro.daq.types import DAQVendor, Direction
from instro.lib.publishers.nominal_core import NominalCorePublisher

# Configuration: Choose your vendor.
VENDOR = DAQVendor.LABJACK_T_SERIES

# Vendor-specific configuration. Each vendor driver lives in its own package and
# owns its transport at construction time.
match VENDOR:
    case DAQVendor.LABJACK_T_SERIES:
        from instro.daq.drivers.labjack import LabJackTSeriesDriver

        CHANNEL_0 = "AIN0"
        CHANNEL_1 = "AIN1"
        driver = LabJackTSeriesDriver(device_id="440020473")  # LabJack serial number
    case DAQVendor.NI:
        from instro.daq.drivers.ni import NIDAQDriver

        CHANNEL_0 = "Dev1/ai0"
        CHANNEL_1 = "Dev1/ai1"
        driver = NIDAQDriver(device_id="Dev1")  # NI device name, as defined in MAX
    case DAQVendor.KEYSIGHT_34980:
        from instro.daq.drivers import Keysight34980A

        CHANNEL_0 = "1009"
        CHANNEL_1 = "1010"
        driver = Keysight34980A("USB0::0x0957::0x0507::MY44001757::INSTR")  # VISA resource
    case DAQVendor.MCC:
        from instro.daq.drivers.mcc import MCCDriver

        CHANNEL_0 = "0"
        CHANNEL_1 = "1"
        driver = MCCDriver(
            device_id="344371:0"
        )  # MCC DAQ device ID, optionally suffixed with ":<board_number>" (default 0)

# Nominal Core dataset to send data to as the instrument is operated.
DATASET_RID = "<dataset_rid>"  # Replace with your dataset RID.

### Main code

daq = InstroDAQ(name="myDAQ", driver=driver)
daq.add_publisher(NominalCorePublisher(dataset_rid=DATASET_RID))

daq.open()

# Do not allow a background daemon to manage fetching data from the DAQ.
# We will do that ourselves in the main app loop
daq.background_enable = False

try:
    daq.configure_analog_channel(
        direction=Direction.INPUT, physical_channel=CHANNEL_0, alias=f"ch_0", range_min=0, range_max=5
    )
    daq.configure_analog_channel(
        direction=Direction.INPUT, physical_channel=CHANNEL_1, alias=f"ch_1", range_min=0, range_max=5
    )

    # Set the sample rate but also the number of samples we will fetch each time daq.read_analog() is called.
    daq.configure_ai_sample_rate(sample_rate=100, samples_per_channel=50)

    # Start the acquisition
    daq.start()

    while True:
        try:
            # Main progam loop
            data = daq.read_analog()
        except KeyboardInterrupt:
            print("Exiting main loop")
            break

    daq.stop()
finally:
    print("Closing DAQ")
    daq.close()