69 lines
1.2 KiB
Python
69 lines
1.2 KiB
Python
#!/usr/bin/env python
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import sys
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import serial
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import matplotlib
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matplotlib.use("tkAgg")
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import matplotlib.pyplot as plt
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import numpy as np
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#sudo apt-get install python3-tk
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#pip install numpi
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#pip install matplotlib
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ser = serial.Serial('/dev/ttyUSB1', 450000)
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ser.flushInput()
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plot_window = 1000
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ser_bytes = ser.readline()
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str = ser_bytes[:-2].decode("utf-8")
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spl = str.split(",")
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f2 = float(spl[1])
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y_var = np.array(plot_window * [f2])
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y_var_1 = np.array(plot_window * [f2])
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plt.ion()
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fig = plt.figure()
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ax1 = fig.add_subplot(111, label="1")
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line, = ax1.plot(y_var, color="#ff0000")
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ax2 = ax1
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line2, = ax2.plot(y_var_1, color="#0000ff")
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plt.show()
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count = 0
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while True:
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ser_bytes = ser.readline()
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str = ser_bytes[:-2].decode("utf-8")
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spl = str.split(",")
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f1 = float(spl[0])
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f2 = float(spl[1])
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y_var = np.append(y_var, f2)
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y_var = y_var[1:plot_window+1]
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line.set_ydata(y_var)
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y_var_1 = np.append(y_var_1, f1)
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y_var_1 = y_var_1[1:plot_window+1]
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line2.set_ydata(y_var_1)
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if count == 2:
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ax1.relim()
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ax1.autoscale_view()
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fig.canvas.draw()
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fig.canvas.flush_events()
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count = 0
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count += 1
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def main() -> None:
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...
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if __name__ == "__main__":
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main()
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