Python3 and Arduino Communication

Easily send commands from Python3 versions to Arduino.

Jan 23, 2019

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33336 views

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16 respects

Devices & Components

Arduino Uno Rev3

USB-A to B Cable

Project description

Code

Arduino Code

arduino

This code is for arduino and you need to upload this code before running python code

1int datafromUser=0;
2void setup() {
3  // put your setup code here,   to run once:
4  pinMode( LED_BUILTIN , OUTPUT );
5  Serial.begin(9600);
6}
7
8void   loop() {
9  // put your main code here, to run repeatedly:
10  if(Serial.available()   > 0)
11  {
12    datafromUser=Serial.read();
13  }
14
15  if(datafromUser ==   '1')
16  {
17    digitalWrite( LED_BUILTIN , HIGH );
18  }
19  else if(datafromUser   == '0')
20  {
21    digitalWrite( LED_BUILTIN, LOW);
22  }
23  
24}
25

int datafromUser=0;
void setup() {
  // put your setup code here,   to run once:
  pinMode( LED_BUILTIN , OUTPUT );
  Serial.begin(9600);
}

void   loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available()   > 0)
  {
    datafromUser=Serial.read();
  }

  if(datafromUser ==   '1')
  {
    digitalWrite( LED_BUILTIN , HIGH );
  }
  else if(datafromUser   == '0')
  {
    digitalWrite( LED_BUILTIN, LOW);
  }
  
}

Arduino Code

arduino

This code is for arduino and you need to upload this code before running python code

1int datafromUser=0;
2void setup() {
3  // put your setup code here,  to run once:
4  pinMode( LED_BUILTIN , OUTPUT );
5  Serial.begin(9600);
6}
7
8void  loop() {
9  // put your main code here, to run repeatedly:
10  if(Serial.available()  > 0)
11  {
12    datafromUser=Serial.read();
13  }
14
15  if(datafromUser ==  '1')
16  {
17    digitalWrite( LED_BUILTIN , HIGH );
18  }
19  else if(datafromUser  == '0')
20  {
21    digitalWrite( LED_BUILTIN, LOW);
22  }
23  
24}
25

int datafromUser=0;
void setup() {
  // put your setup code here,  to run once:
  pinMode( LED_BUILTIN , OUTPUT );
  Serial.begin(9600);
}

void  loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available()  > 0)
  {
    datafromUser=Serial.read();
  }

  if(datafromUser ==  '1')
  {
    digitalWrite( LED_BUILTIN , HIGH );
  }
  else if(datafromUser  == '0')
  {
    digitalWrite( LED_BUILTIN, LOW);
  }
  
}

Python3 Code

python

1import serial
2import time
3
4arduino=serial.Serial('COM1', 9600)
5time.sleep(2)
6
7print("Enter  1 to turn ON LED and 0 to turn OFF LED")
8
9while 1:
10    
11    datafromUser=input()
12
13    if datafromUser == '1':
14        arduino.write(b'1')
15        print("LED  turned ON")
16    elif datafromUser == '0':
17        arduino.write(b'0')
18        print("LED turned OFF")
19

import serial
import time

arduino=serial.Serial('COM1', 9600)
time.sleep(2)

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

while 1:
    
    datafromUser=input()

    if datafromUser == '1':
        arduino.write(b'1')
        print("LED  turned ON")
    elif datafromUser == '0':
        arduino.write(b'0')
        print("LED turned OFF")

Downloadable files

untitled

For this project you just need arduino board and usb cable

untitled

For this project you just need arduino board and usb cable

untitled

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Jalal_Mansoori

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