Cannot communicate between arduino and python using pyserial

Question

I have started a project on arduino where i require it to communicate with python.I have gone through web and found a sample code on arduino python serial communication where,it lights up the LED when 1 is enterd. Both python and arduino code are working but the LED is not lighting up. The board is functioning properly since,i have tried other basic examples

Arduino code:

I

  void setup() 
   {
      pinMode(12,OUTPUT);
     digitalWrite(12,LOW);  
     Serial.begin(9600);
 }

  void loop() 
 {
   if(Serial.available() > 0)
   {
     if(Serial.read() == 1)
     {
       digitalWrite(12,HIGH);
       delay(2000);
     }
   }  

     else
     {
       digitalWrite(12,LOW);
     }
     }

Python Code:

import serial
import time  # Required to use delay functions

arduinoSerialData = serial.Serial('/dev/ttyACM0', 9600)  # Create Serial port object called arduinoSerialData
time.sleep(2)  # wait for 2 secounds for the communication to get established


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

while 1:  # Do this forever

    var =input()  # get input from user
    var=var.encode()


    arduinoSerialData.write(var)

anilkunchalaece · Accepted Answer · 2019-04-24 09:04:13Z

1

Try this

   if(Serial.available() > 0)
   {
     if((char)Serial.read() == '1')
     {
       digitalWrite(12,HIGH);
       delay(2000);
     }
   }

And check this awesome tutorial on arduino forum

answered Apr 24, 2019 at 9:04

anilkunchalaece

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