Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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I need help fixing my python code:

My task is to use a python program to simulate traffic lights .

A bread board is required to connect all the gpio pins and connect the led's.

Here is the program.

from gpiozero import LED from time import sleep   

red = LED(12) yellow= LED(16) green =LED(21)

red.on() sleep(1)

red.on() yellow.on() sleep(1)

green.on() sleep(3)

green.on() yellow.blink(3) sleep(1)

red.on() sleep(1)

while True: red.on() sleep(1)

yellow.on() sleep(1)

green.on() sleep(1)

red.off() sleep(1)

yellow.off() sleep(1)

green.off() sleep(1)

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