Pi Binary Counter

binarycounter.py

# Binary counter

import RPi.GPIO as GPIO
import time

redPin = 27
greenPin = 17
bluePin = 22
yellowPin = 19

GPIO.setmode(GPIO.BCM)

GPIO.setup(redPin, GPIO.OUT)
GPIO.setup(yellowPin, GPIO.OUT)
GPIO.setup(greenPin, GPIO.OUT)
GPIO.setup(bluePin, GPIO.OUT)

GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)

try:
    GPIO.output(redPin, GPIO.LOW)
    GPIO.output(yellowPin, GPIO.LOW)
    GPIO.output(greenPin, GPIO.LOW)
    GPIO.output(bluePin, GPIO.LOW)
    counter = 0
    print("Push the button!")

    while True:
        input_state = GPIO.input(18)
        if True:
            counter = counter + 1
            print("--------")
            print("Counter = " + str(counter))

            counterBinary = bin(counter)[2:][::-1]
            print("Counter Binary = " + str(counterBinary))
            for index, bit in enumerate(counterBinary):
                print("Index = " + str(index) + " and bit = " + bit)
                if (index == 0):
                    if (int(bit) == 1):
                        GPIO.output(greenPin, GPIO.HIGH)
                    elif (int(bit) == 0):
                        GPIO.output(greenPin, GPIO.LOW)
                elif (index == 1):
                    if (int(bit) == 1):
                        GPIO.output(yellowPin, GPIO.HIGH)
                    elif (int(bit) == 0):
                        GPIO.output(yellowPin, GPIO.LOW)
                elif (index == 2):
                    if (int(bit) == 1):
                        GPIO.output(bluePin, GPIO.HIGH)
                    elif (int(bit) == 0):
                        GPIO.output(bluePin, GPIO.LOW)
                elif (index == 3):
                    if (int(bit) == 1):
                        GPIO.output(redPin, GPIO.HIGH)
                    elif (int(bit) == 0):
                        GPIO.output(redPin, GPIO.LOW)
                
            time.sleep(0.05)
            if (counter == 16):
                counter = 0

except KeyboardInterrupt:
    GPIO.cleanup()