ModMyPi LTD | GPIO & Python (2/9)

On this mission you’ll discover ways to activate and off a LED

Issues you will want:

Raspberry Pi + SD Card

Keyboard + Mouse

Monitor + HDMI Cable

Energy Provide

Breadboard

1x Purple LED

1x Blue LED

2x 330Ω Resistor

3x M/F Jumper Wire

Conditions:

Newest model of Rasbian put in in your SD Card
Raspberry Pi setup with a keyboard, mouse and monitor

1. Change the present listing to our gpio_python_code listing:

cd gpio_python_code

2. Begin by making a file for our led on script

contact 2_on.py

3. Then create a file for our led off script

contact 2_off.py

4. Edit the 2_on.py file utilizing nano 2_on.py and add the next code

#!/usr/bin/python

import RPi.GPIO as GPIO # import a library

GPIO.setmode(GPIO.BCM) # set the pin numbering system to BCM

GPIO.setup(17,GPIO.OUT) # set GPIO17 as an OUTPUT
GPIO.setup(27,GPIO.OUT) # set GPIO27 as am OUTPUT

print "Lights on" # print to the display so we all know what’s occurring

GPIO.output(17,GPIO.HIGH) # set GPIO17 excessive, 3v3 will now be energetic on that pin
GPIO.output(27,GPIO.HIGH) # set GPIO27 excessive, 3v3 will now be energetic on that pin

5. Exit and save the file, CTRL+x, Y, enter

6. Edit the 2_off.py file utilizing nano 2_off.py and add the next code

#!/usr/bin/python

import RPi.GPIO as GPIO # import a library

GPIO.setmode(GPIO.BCM) # set the pin numbering system to BCM

GPIO.setup(17,GPIO.OUT) # set GPIO17 as an OUTPUT
GPIO.setup(27,GPIO.OUT) # set GPIO27 as am OUTPUT

print "Lights off" # print to the display so we all know what’s occurring

GPIO.output(17,GPIO.LOW) # set GPIO17 low, 3v3 will now be de-active on that pin
GPIO.output(27,GPIO.LOW) # set GPIO27 low, 3v3 will now be de-active on that pin

7. Exit and save the file, CTRL+x, Y, enter

8. To show your LEDs on, execute your 2_on.py script:

sudo python 2_on.py

You may see some warnings, for the sake if this tutorial you possibly can ignore these.

They're simply letting that the GPIO pins used within the script, might have already

been configured.

8. To show your LEDs off, execute your 2_off.py script:

sudo python 2_off.py

You’ll in all probability see some warnings, for the sake if this tutorial you possibly can ignore these.

They're simply letting that the GPIO pins used within the script, might have already

been configured.

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