Hello I am not able to send a binary signal like from python to Arduino

Projects Programming
21

No I cant open serial moniter cause the terminal is open in python if I close that the whole code stops to work

22

Consider scheduling an appointment to meet with your instructor. You are not making any progress on this forum, because you won't post any useful information.

23

True...

24

Thanks for your help but unfortunately I will have to do by myself because I am not making progress

25

yes, that's what I wanted to double check.

26

I use this function in Python

def sendCommand(aCommand):
    arduino.write(bytearray(aCommand, "utf8"))
    arduino.write(b'\n')        # end marker

and a command is a String

where arduino is my Serial port to the Arduino

arduinoPort = '/dev/cu.usbserial-A400Y6YX'
baudRate = 115200
arduino = serial.Serial(arduinoPort, baudrate=baudRate, timeout=.1)
27

Thanks

28

Is one of them in the Arduino ide? And if so which one.

29

No that is all Python code

30

I am getting an error:

image
image706×495 22.9 KB

This code is fine but this one is not working:
image
image791×781 27.2 KB

31

Ok I fixed that problem but I am getting loads of error plz check my code:
from operator import index

import webbrowser

import time

import serial

A = input("What is your name?")

B = input("What is you age?")

C = input("What do you do as a hobby?")

D = input("What is the passcode?")

arduinoPort = '/dev/cu.usbserial-A400Y6YX'

baudRate = 115200

arduino = serial.Serial(arduinoPort, baudrate=baudRate, timeout=.1)

print("What is your name: " + A)

print("What is your age: " + B)

print("What do you do as a hobby: " + C)

A = str(A)

B = str(B)

C = str(C)

serialcomm = serial.Serial('COM3', 9600)

def sendCommand(aCommand):

while True:

serialcomm.timeout = 1

if D == "1289":

    arduino.write(bytearray(aCommand, "1"))

arduino.write(b'\n')        # end marker




    print('1')

          

    print("access granted")

else:

    print('0', "Access denied.")

serialcomm.write(D.encode())

break

time.sleep(0.5)

print(serialcomm.readline().decode('ascii'))

serialcomm.close()
32

The forum broke it down a bit so ignore the broken parts. Anyways here are the errors:

image
image1522×322 21.4 KB

And here is the code in a png format:
image
image1128×557 23.5 KB

image
image972×550 13.5 KB

33

Please post with code tags don’t post picture of text

➜ please read How to get the best out of this forum and modify your post accordingly

34

Ok will do

35

I actually had posted more code here

➜ ($100 paid request) Serial/SafeString/Digital Read/Write bug is ruining my life - #44 by J-M-L

you can see a full python code waiting user commands that are sent to the Arduino

36

Hello I modified the code a bit(Python code) . The code is working nicely and the way I wanted it to but there is no input in the Arduino and I'm not sure why please check:

from operator import index
import serial

A = input("What is your name?")

B = input("What is you age?")

C = input("What do you do as a hobby?")

D = input("What is the passcode?")

arduinoPort = 'COM3'

baudRate = 115200

arduino = serial.Serial(arduinoPort, baudrate=baudRate, timeout=.1)

print("What is your name: " + A)

print("What is your age: " + B)

print("What do you do as a hobby: " + C)

A = str(A)

B = str(B)

C = str(C)

def sendCommand(aCommand):

if D == '1289':

 print("Access granted")

arduino.write(bytearray(aCommand, "1"))

arduino.write(b'\n')       # end marker
37

I only spend time reading posts following the guidelines

➜ please read How to get the best out of this forum and modify your post accordingly

38 
from operator import index

import serial

A = input("What is your name?")

B = input("What is you age?")

C = input("What do you do as a hobby?")

D = input("What is the passcode?")

arduinoPort = 'COM3'

baudRate = 115200

arduino = serial.Serial(arduinoPort, baudrate=baudRate, timeout=.1)

print("What is your name:  " + A)

print("What is your age:   " + B)

print("What do you do as a hobby:  " + C)

A = str(A)

B = str(B)

C = str(C)

def sendCommand(aCommand):

    if D == '1289':

     print("Access granted")

    arduino.write(bytearray(aCommand, "1"))

    arduino.write(b'\n')       # end marker`Preformatted text

`

39

This is the code and I have written the problem in the previous posts. This is the line of code
that sends the signal right?
arduino.write(bytearray(aCommand, "1"))

40

Def is to introduce a function definition. What’s your function doing and are you calling it?

If you have


def sendCommand(aCommand):
    arduino.write(bytearray(aCommand, "utf8"))
    arduino.write(b'\n')        # end marker

Then you could call

sendCommand(A)

If you want to send the age