
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
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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