forked from awendt/pyrelacs
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
from typing import Optional
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import uldaq
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from IPython import embed
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import typer
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from typing_extensions import Annotated
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import matplotlib.pyplot as plt
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from pyrelacs.util.logging import config_logging
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log = config_logging()
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class ReadData:
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def __init__(self) -> None:
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devices = uldaq.get_daq_device_inventory(uldaq.InterfaceType.USB)
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log.debug(f"Found daq devices {len(devices)}, connecting to the first one")
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self.daq_device = uldaq.DaqDevice(devices[0])
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self.daq_device.connect()
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log.debug("Connected")
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def read_analog_in(self, channel: Annotated[Optional[int], typer.Argument()] = 0):
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# Get the Ananlog In device and Analog Info
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ai_device = self.daq_device.get_ai_device()
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ai_info = ai_device.get_info()
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log.debug(
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f"Analog info,\n Channels available {ai_info.get_num_chans()}, \n Max Samplerate: {ai_info.get_max_scan_rate()}"
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)
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buffer_len = 1_000_000
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buf = uldaq.create_float_buffer(1, buffer_len)
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er = ai_device.a_in_scan(
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1,
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1,
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uldaq.AiInputMode.SINGLE_ENDED,
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uldaq.Range.BIP10VOLTS,
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buffer_len,
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500_000,
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uldaq.ScanOption.DEFAULTIO,
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uldaq.AInScanFlag.DEFAULT,
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data=buf,
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)
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ai_device.scan_wait(uldaq.WaitType.WAIT_UNTIL_DONE, timeout=-1)
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log.debug("Scanning")
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self.daq_device.disconnect()
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self.daq_device.release()
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plt.plot(buf)
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plt.show()
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if __name__ == "__main__":
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daq_input = ReadData()
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typer.run(daq_input.read_analog_in)
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