3-temperatura-graph.py

import serial
import re
import matplotlib.pyplot as plt
import datetime

ser = serial.Serial('COM3', 9600, timeout=0.5)
regex=re.compile("[0-9]{2}\.[0-9]{2}")
ser.close()
ser.open()

while True:

    plt.title("Gràfic temperatura")
    plt.ion()
    t1=plt.text(10, 43, "", fontsize=12)
    t2=plt.text(10, 41, "", fontsize=12)
    xdata = []
    ydata = []
    axes = plt.gca()
    axes.set_xlim(1, 12)
    axes.set_ylim(10, 40)
    line, = axes.plot(xdata, ydata, 'r-')
    compta=0
    while compta <13:
       data = ser.readline()
         
       if "Temp" in data.decode():
               compta += 1
               xdata.append(compta)
               ydata.append(float(regex.findall(str(data))[1]))
               line.set_xdata(xdata)
               line.set_ydata(ydata)
               currentDT = datetime.datetime.now()
               t1.set_text(str(currentDT.hour)+':'+str(currentDT.minute)+':'+str(currentDT.second))
               t2.set_text(regex.findall(str(data))[1]+" ºC")
               plt.plot()
               plt.pause(1e-17)
    
    plt.clf()