Aug-29-2019, 11:27 AM
Guys sorry if I'm disturbing again, but I am not able to find the errors on my code, how you can see in the picture attached I'm able to show the temperatures, but are not the correct values, after the measurement my temperature is always around 24.78 24,9 Degrees, and also when I save the file in csv is encode, how I can decode?
import serial
import numpy as np
import adafruit_max31856
import matplotlib.pyplot as plt
from drawnow import *
import datetime
import math
import csv
Temp1= []
Temp2=[]
plt.ion()
cnt=0
def makeFig():
plt.title('My Super Beautiful Live Streaming Sensor Data :-)')
plt.grid(True)#Turn the grid on
plt.xlabel('Time') #set xlabels
plt.ylabel('Temperature') #Set ylabels
plt.plot(Temp1, 'ro-',label='Temp1') #plot the temperature
plt.plot(Temp2, 'b^-',label='Temp2')
plt.legend(loc='upper right') #plot the legend
plt.show()
## user-defined params
serialPort = 'COM3'
path = 'C:\\Users\\Alphinity\\Desktop\\python3\\'
outputFile = "signalSerial.csv"
ser = serial.Serial('COM3', 115200)
outputFile = path + outputFile
f = open(outputFile,'w')
f.write(outputFile)
f.close()
print ("Writing the serial stream into file: " + outputFile)
print (" [to see the stream: tail -f '+outputFile+' ]")
print (" [to exit: ctrl+c (the elegant way :) ]")
while True:
line = ser.readline()
string = line
Temp1.append(string[0])
Temp2.append(string[1])
drawnow(makeFig)
plt.pause(.000001)
cnt=cnt+1
if(cnt>50):
Temp1.pop(0)
Temp2.pop(0)
if (string != ''):
f = open(outputFile, 'a')
f.write(str(string))
f.write("\n")
f.close()
print(string.decode())
valueRead.decode().strip()