sds011_pylab.py 文件源码

def sensor_live(self):
            x = []
            y1 = []
            y2 = []
            for i in range(0,330,30): # change time interval here, if required
                self.sensor_wake()
                time.sleep(10)
                pm = self.sensor_read()
                if pm is not None:
                    x.append(i)
                    y1.append(pm[0])
                    y2.append(pm[1])
                    with open('/home/pi/data.csv', 'ab') as csvfile:
                        file = csv.writer(csvfile, delimiter=';', quotechar='"', quoting=csv.QUOTE_MINIMAL)
                        file.writerow([datetime.datetime.now().replace(microsecond=0).isoformat().replace('T', ' '), pm[0], pm[1]])
                        csvfile.close()
                    line1, = self.ax.plot(x,y1,'r-x')
                    line2, = self.ax.plot(x,y2,'b-x')
                    self.canvas.draw()
                self.sensor_sleep()
                time.sleep(20)