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Arduino Forum HELP :'(
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  • Replies 23 replies
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  • python
  • help
  • blink led
  • arduinos
  • arduino coding
  • need help coding
Related

HELP :'(

the_future
the_future over 7 years ago

Coding Arduino in Python but got an error and have no idea why please help me

 

My Code:

 

 

import serial                                 # add Serial library for Serial communication

 

 

Arduino_Serial = serial.Serial('com4',9600)  #Create Serial port object called arduinoSerialData

print Arduino_Serial.readline()               #read the serial data and print it as line

print ("Enter 1 to ON LED and 0 to OFF LED")

 

 

while 1:                                      #infinite loop

    input_data = raw_input()                  #waits until user enters data

    print "you entered", input_data           #prints the data for confirmation

  

    if (input_data == '1'):                   #if the entered data is 1

        Arduino_Serial.write('1')             #send 1 to arduino

        print ("LED ON")

     

  

    if (input_data == '0'):                   #if the entered data is 0

        Arduino_Serial.write('0')             #send 0 to arduino

        print ("LED OFF")

 

image

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  • Dudley
    Dudley over 7 years ago in reply to shabaz +5
    I still call () brackets. I call {} braces and [] square brackets. Parentheses to me is related to sentence structure. Something added as an afterthought in an existing sentence - something you didn't…
  • jomoenginer
    jomoenginer over 7 years ago in reply to Dudley +5
    Some refer to '{}" as curly brackets, so I suppose '()' could be something like happy-sad face brackets. I still refer to '#' as the pound symbol due to my Unix background; '#!' = Pound Bang To each is…
  • gecoz
    gecoz over 7 years ago in reply to the_future +4
    Since the "python setup.py install" seems to be working, probably your Python 2.7 environment is correctly set up. On the other hand, the error you get using the "python3 ..." command is a strong indicator…
Parents
  • shabaz
    shabaz over 7 years ago

    Hi,

     

    This is a guess (I don't know Python very well), you probably need brackets, i.e.

     

    print(Arduino_Serial.readline())

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  • jomoenginer
    jomoenginer over 7 years ago in reply to shabaz

    You mean parenthesis. Brackets are those things that look like '[]'.

     

    However, this is only required with a print statement if your using Python 3 or intend to be portable up to Python 3. 

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  • shabaz
    shabaz over 7 years ago in reply to jomoenginer

    Hi Jon,

     

    You're right, I meant parenthesis i.e. ()

    At up to high-school level they were (at least in the school I attended) just referred as brackets, and [ ] were 'square brackets'.

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  • Dudley
    Dudley over 7 years ago in reply to shabaz

    I still call () brackets.

    I call {} braces

    and [] square brackets.

     

    Parentheses to me is related to sentence structure. Something added as an afterthought in an existing sentence - something you didn't think of when starting the sentence - would be a parenthesis. And I would say it doesn't need to be in brackets, what I did in the previous sentence would count as a parenthesis. But that's just me image

     

    Apologies, don't want to derail the conversation image

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  • jomoenginer
    jomoenginer over 7 years ago in reply to Dudley

    Some refer to '{}" as curly brackets, so I suppose '()' could be something like happy-sad face brackets.

     

    I still refer to '#' as the pound symbol due to my Unix background;

    '#!'  = Pound Bang

     

    To each is own I guess.

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  • jomoenginer
    jomoenginer over 7 years ago in reply to Dudley

    Some refer to '{}" as curly brackets, so I suppose '()' could be something like happy-sad face brackets.

     

    I still refer to '#' as the pound symbol due to my Unix background;

    '#!'  = Pound Bang

     

    To each is own I guess.

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