Question

I need help wring a python code for my IOT class.

This code will be used on Tinkercad

I am to create a

Blinking LED and Ultrasonic Senor

For this project you will be creating a distance sensor circuit with visual feedback. You will use a Ultrasonic sensor to measure the proximity. An LED will be used to indicate the proximity on an object by blinking fast to close objects, and slow for far away objects. You can use your physical equipment in your kits or you can use the virtual tools to create this circuit and demonstrate it.

Thanks in advance

Answer 1

import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)

TRIG=23
ECHO=24

GPIO.setup(TRIG,GPIO.OUT)
GPIO.setup(ECHO,GPIO.IN)
try:
    while True:

       GPIO.output(TRIG, False)
       time.sleep(2)

       GPIO.ouput(TRIG, True)
       time.sleep(0.00001)
       GPIO.output(TRIG, False)

       while GPIO.input(ECHO)==0:
         pulse_start = time.time()

       while GPIO.input(ECHO)==1:
         pulse_end = time.time()

       pulse_duration = pluse_end - pulse_start

       distance = pulse_duration * 17150

       distance = round(distance,2)

       if (distance < 10):
   GPIO.output(LedPin, GPIO.LOW) # led on
   time.sleep(0.1)
   print 'led off...'
   GPIO.output(LedPin, GPIO.HIGH) # led off
   time.sleep(0.1)
      else (distance > 10):
   GPIO.output(LedPin, GPIO.LOW) # led on
   time.sleep(0.5)
   print 'led off...'
   GPIO.output(LedPin, GPIO.HIGH) # led off
   time.sleep(0.5)

except KeyboardInterrupt:
    print("Cleaning up!")
    gpio.cleanup()