The document provides instructions for interfacing a push button using GPIO on a Raspberry Pi. It includes details on wiring the circuit and writing a Python script to detect button presses. The code leverages the RPi.GPIO library to read the button state and print a message when pressed.

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Interfacing a push button
 read data through GPIO.
 read the value of a push button on a breadboard.
 Writing a code to detect a push button being switched on/off .

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Button circuit

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Writing the code
 On the terminal type : nano button.py
 Write following code.
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)
while True:
input_state = GPIO.input(18)
if input_state == False:
print('Button Pressed')
time.sleep(0.2)