I would like to communicate with Arduino using Python, but the graph is not displayed in real time even if I do the following:Specifically, it only appears after execution.
I'd like the image to be displayed like an animation, but what is the cause?
I use Windows.Please let me know if there is anything.
%matplotlib notebook
import numpy as np
import matplotlib.pyplot asplt
import serial
from serial.tools import list_ports
import time
ser=serial.Serial("COM6",9600)#COM port (Arduino connection)
xlim = [0,100]
X,Y = [ ], [ ]
figure=plt.figure()
ax=figure.add_subplot(1,1,1)
start = time.time()
while True:
plt.cla()# Clear previous graph
bolt=ser.readline().rstrip()#Replace the information (string) received in the serial communication until a new line code arrives.obtain by byte type
volt=volt.decode()
bolt=float(volt)
Y.append(volt)
X.append(len(Y))
iflen(X)>100:
xlim[0]+=1
xlim[1]+=1
ax.plot(X,Y)
plt.title("voltage(cds)")
plt.ylim(0,5)
plt.xlim(xlim[0], xlim[1])
if time.time()-start>20:
ser.close()
break
I answered the following questions first, but I will also be able to use real-time graphing by adding plt.pause(interval).
However, the impact of the Jupiter Notebook environment is unknown, so please try the original Python first.
Below are excerpts from the postscripts.
plt.ylim(0,5)
plt.xlim(xlim[0], xlim[1])
plt.pause(0.1)#### Add this line
if time.time()-start>20:
© 2024 OneMinuteCode. All rights reserved.