Gadgets 4 Students Online Courses
Free Tutorials  Go to Your University  Placement Preparation 
0 like 0 dislike
1.3k views
in Tutorial & Interview questions by Goeduhub's Expert (9.0k points)
Turning on and off LED with your Raspberry Pi's GPIO Pins.

Where can I do online courses From Word's Top Instructors?

UDEMY::  Attend All Udemy Courses in Just INR 450[Coupon]
Coursera:: Join For FREE

1 Answer

0 like 0 dislike
by Goeduhub's Expert (9.0k points)
 
Best answer

Hardware requirements:

  1.        Raspberry-PI
  2.        Power adepter
  3.        SD Card (Minimum 16 GB, with OS for Raspberry-PI)
  4.        3 standard 5 Mm LEDs
  5.        3, (270 OHM) Registers to connect these LEDs to RASPBERRY-PI
  6.        4 Jumper wires (Male to Female; Female end to connect with RASPBERRT-PI; Male end to connect with breadboard)

LED GPIO Connection

LED connection with Raspberry-PI's GPIO

1.       First connect pin no 7 of RASPBERRY-PI to breadboard using Jumper wire.

2.       Breadboard connections:- the top and bottom rows of holes are connected horizontally while the remaining holes are connected vertically.

3.       For LED long end is Positive and short end is negative.

4.       So longer end of LED will connect to GPIO pin no. 7 of RASPBERRY-PI.

5.       Now take a register and connect it to negative end of LED.

6.       Now take a jumper wire and connect it to negative end of LED to RASPBERRY-PI’s ground through register.

3LED-Raspberry-PI-IOT-Training-in-Jaipur

7.       In same way connect 2nd & 3rd LED to RASPBERRY-PI.

Python Program

Import RPi.GPIO as GPIO  # Install Raspbian from latest NOOBS to ensure you have the GPIO library

Import time   #  importing "time" module for time operations

GPIO.setmode(GPIO.BOARD)

GPIO.setup(7,GPIO.OUT)  # it will use 7 no. Pin of RASPBERRY-PI as output.

GPIO.setup(11,GPIO.OUT)  # it will use 11 no. Pin of RASPBERRY-PI as output.

GPIO.setup(13,GPIO.OUT)  # it will use 13 no. Pin of RASPBERRY-PI as output.

For x in range(0,7):

        GPIO.output(7,True)

        Time.sleep(.5)

        GPIO.output(7,False)

        GPIO.output(11,True)

        Time.sleep(.5)

        GPIO.output(11, False)

        GPIO.output(13,True)

        Time.sleep(.5)

        GPIO.output(13, False)

   GPIO.cleanup()

Code your future with Programming skills. Courses starting at ₹ 455 only!

3.3k questions

7.1k answers

395 comments

4.5k users

Related questions

 Important Lists:

Important Lists, Exams & Cutoffs Exams after Graduation PSUs

 Goeduhub:

About Us | Contact Us || Terms & Conditions | Privacy Policy || Youtube Channel || Telegram Channel © goeduhub.com Social::   |  | 

 

Free Online Directory
...