Creating Two Buttons In Python And Controlling LED

Introduction

In this article, I am explaining about creating two buttons in Python for controlling the LED- LED ON and LED OFF.

 

List of Parts

 

Hardware Side

• Arduino Uno
• LED

Software Side

• Arduino IDE
• Python software 

Connection

• Connect the positive side of led to the 13 on the Arduino board.
• Connect the negative side of led to the Gnd on the Arduino board. 

Programming

Programming For Arduino Part

int led = 13;
char mydata = 0;
voidsetup()
{
    pin Mode(led, OUTPUT);
    Serial begin(9600);
}
void loop()
{
    my data = int(serial.read());
    if (y data = = '1') digitalWrite(led, HIGH);
    if (mydata = = '0') digitalWrite(led, LOW);
}

Now, connect to the Arduino part via USB cable and upload the program to the board.

 

Programming For Python Part

import Serial
import time
from tkiner import*
def led_on();
arduinoData.write(b '1')
def led_off( );
arduinoData.Write(b '0')
led_control_Window=Tk( )
btn = Button(led_control_window,text = "led on",command = led_on)
btn2 = Button(led_control_window,text = "led off",command = led_off)
btn.pack( )
btn2.pack()
arduinoData= Serial.Serial("COM4",9600)

Explanation

In the Python program, I have added the buttons. Now, the buttons will be displayed in the run window.

btn = Button(led_control_window,text = "led on",command = led_on)
btn2 = Button(led_control_window,text = "led off",command = led_off)
btn.pack( )
btn2.pack()

Now, when we click on the led on button, the LED will be ON and when we click led off, the LED will be off. (as shown in Figure 2).

Figure 1: Buttons in Run Window

Output


Figure 2: Output