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--- arduino:pms5003 [2020/11/30 21:52] – created aistis
+++ arduino:pms5003 [2020/12/14 22:29] (current) – aistis
@@ Line 7: / Line 7: @@
 {{:arduino:pasted:20201130-215212.png}}
+<code python>
+import serial
+import matplotlib.pyplot as plt
+import numpy as np
+from struct import unpack
+s = serial.Serial(port='COM6',baudrate=9600)
+plt.ion()
+fig = plt.figure()
+plt.grid()
+plt.title('particale concentration in my room');
+zz = np.array(0)
+y1 = np.array(np.nan)
+y2 = np.array(np.nan)
+y3 = np.array(np.nan)
+ax = fig.add_subplot(111)
+line1, = ax.plot(zz, y1, 'r-', label='PM 1')
+line2, = ax.plot(zz, y2, 'k-', label='PM 2.5')
+line3, = ax.plot(zz, y3, 'g-', label='PM 10')
+fig.show()
+fig.legend()
+while True:
+    res = s.read(size=32)
+    all_data = unpack('>BBHHHHHHHHHHHHHHH', res)
+    # byte, byte,
+    print(all_data)
+    y1 = np.append(y1, all_data[2])
+    y2 = np.append(y2, all_data[3])
+    y3 = np.append(y3, all_data[4])
+    x = np.arange(y1.shape[0])
+    line1.set_xdata(x)
+    line2.set_xdata(x)
+    line3.set_xdata(x)
+    line1.set_ydata(y1)
+    line2.set_ydata(y2)
+    line3.set_ydata(y3)
+    fig.canvas.draw()
+    fig.canvas.flush_events()
+    plt.pause(0.05)
+    v1 = np.min([np.nanmin(y1),np.nanmin(y2),np.nanmin(y3)])
+    v2 = np.max([np.nanmax(y1),np.nanmax(y2),np.nanmax(y3)])
+    ax.set(xlim=(x.min()-1, x.max()+1), ylim=(v1-1, v2+1))
+s.close()
+</code>
+{{:arduino:pasted:20201214-222902.png}}