[Python][Voice] Read Analog Signals From NI DAQ Card從NI 資料擷取卡中讀取類比訊號

This example provides the following three steps for training:
1. Install nidaqmx package, Python can use this package to read analog signals from NI DAQ card.
2. Use Simulated NI DAQ Device to simulate NI DAQ device.
3. Use matplotlib to plot analog signals from NI DAQ device.

這個範例提供以下三個步驟供練習:

#1. 安裝nidaqmx套件，使用Pythone讀取NI DAQ類比訊號

#2. 使用Simulated NI DAQ Device模擬DAQ卡類比訊號

#3. 使用matplotlib作互動模式顯示DAQ卡的類比資料

import nidaqmx

import matplotlib.pyplot as plt

plt.ion() 

i = 0

with nidaqmx.Task() as task:

    task.ai_channels.add_ai_voltage_chan("Dev1/ai0:1")

    while i < 100:

        aiData = task.read()

        plt.scatter(i,aiData[0],c="r")

        plt.scatter(i,aiData[1],c="b")

        plt.pause(0.05)

        i=i+1

        print(aiData)

plt.ioff()

plt.show() 

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