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Nova PM sensor SDS011 High precision laser pm2.5 air quality detection sensor module Super dust dust sensors, digital output

  * dust sensor 
  * PM2.5
  * PM10


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https://create.arduino.cc/projecthub/plouc68000/portable-fine-dust-pm10-analyzer-with-large-oled-digits-1c20c2

https://nettigo.pl/attachments/398

{{:arduino:pasted:20200104-214331.png}}

<code python>
import serial
import matplotlib.pyplot as plt

s = serial.Serial(port='COM5',baudrate=9600)
plt.figure()
plt.grid()
plt.title('particale concentration in my room');
i=0
while True:
    res = s.read(size=10)
    a = int.from_bytes(res[2:3], byteorder='big', signed=False)
    b = int.from_bytes(res[4:5], byteorder='big', signed=False)
    print("{},{}".format(a,b))
    plt.scatter(i, a, c='r')
    plt.scatter(i, b, c='b')
    plt.legend([r'PM10 $\mu g \/ \slash m^{3}$', r'PM2.5 $\mu g \/ \slash m^{3}$'])
    plt.pause(0.05)
    i+=1
s.close()
</code>


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