My Account

Wish List (0)

Saved Carts

Compare

Approved Re-Seller
Follow us on Facebook! Follow us on Twitter! Follow us on Instagram!

GPIO & Python (4/9) - Push Button

February 21, 2017

In this project you’ll learn how to make a LED blink!

Things you will need:

Raspberry Pi + SD Card
Keyboard + Mouse
Monitor + HDMI Cable
Power Supply
Breadboard
1x Red LED
1x Blue LED
2x 330Ω Resistor
1x M/M Jumper Wire
4x M/F Jumper Wire
1x Button

Prerequisites:

Latest version of Rasbian installed on your SD Card
Raspberry Pi setup with a keyboard, mouse and monitor

1. Change the current directory to our gpio_python_code directory:

cd gpio_python_code 

2. Start by creating a file for our button script

touch 4_button.py

3. Edit the 4_button.py script using nano 4_button.py add the following code:

#!/usr/bin/python

import os
from time import sleep
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)

# setup our input pin
# we use an internal pull up resistor to hold the pin at 3v3, otherwise the inputs value could chatter between high and low

GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True:
    if ( GPIO.input(10) == False ):
        print("Button Pressed")
        os.system('date') # print the systems date and time
        print GPIO.input(10)
        sleep(5)
    else:
        os.system('clear') # clear the screens text
        print ("Waiting for you to press a button")
        sleep(0.1)

4. Execute your 4_button.py script

sudo python 4_button.py

5. Now press the button

6. To stop your 4_button.py script, simply press ctrl+c

Last update: February 22, 2017

1 Comments(1 Replies)

Leave a Comment

Leave a Reply

* Name:
* Comment:
* E-mail: (Not Published)
Website: (Site url with http://)
Verification code: