Raspberry Pi LESSON 29: Using GPIO pins as Inputs and Reading them in Python

This lesson shows you how to do a digital read from the Raspberry Pi GPIO pins. We give some simple example using a circuit with push buttons. We show how to activate the internal pullup resistors.

Get code and see full details of the lesson at:

[simoncox]

Don't ever stop doing this. you have taught my kid so much and he loves it. I'm learning along with and it goes just the righ pace for both of us. thanks man.

[erikanderson]

Awesome presentation . You’re a good teacher. I especially like the way you reinforce key points during and before each lesson. Your methods really make things sink in.

Thank You

[rsteinhoff]

I have watched many of your lessons, going back on some to re-listen.
All of the lessons were very good, taking us step by step, even showing us some of the mistakes that can be made, then correcting them.
Fantastic job!

[joepawlin]

These tutorials are great for both beginners and those who are looking to refresh their memories in the moment. Thank you....

[dragscrpn]

Thanks Paul, your videos are a wonderful resource for people trying to learn programming and electronics. To anyone else, make sure you correctly put the buttons in otherwise your terminal window going to get a lot of button presses.

[keith]

Best GIPO lesson on youtube. Thank you for reaching !

[metubey]

The split screen, the schematic is very nice. Very well done.

[jasoncherry]

The tutorials are great, I'm a beginner to the world of Raspberry pi so your lessons are very helpful

[DrCureAging]

Just found your tutorials. They're great! I'm surprised such good tutorials aren't getting much views.

[jaredholitski]

This was exactly the video I needed to get my joystick setup. Thanks Paul

[thaskarthaskaran]

Sir, How yo count in the same like counting number times the button pushed..

[rajeshkumararora]

Sir, The way you explain while coding, is simply wonderful

[robertchandler]

Just stumbled onto your videos. New to the Pi and programming. Your method and presentation work well for me. Thank you for making these tutorials!

[jonathonfulbright]

don't stop keep em coming. I'd like to start talking to some i2C and SPI devices.

[BookMeDirectly]

Excellent work. Very clear and totally understandable. I particularly like the way you enforce reminders such as "Case sensitivity" and "Tabs in Python". Looking forward to watching other videos in your range. Neil

[JoseHernandez-lxij]

Just started learning python, want to build a diagnostic pi, second coding vid and this was extremely easy to understand, thank you for explaining thoroughly.

[-VAMPYRE-]

so glad to find your videos, i know i can always come here to find anything i need. you are a great instructor!

[MrMLM]

Your teaching style is really easy to follow. Thanks. If I wanted to print only once when the button is pressed and only print again once when it’s un-pressed is this something I could add to this code base or would the code need to be completely different? The way I’m trying to implement this code is to have a reed switch change the state of a relay using the relay as the “button/switch” to the input of the RPi gpio.

[nolanhartough]

this is awesome. ive been looking for tutorials that are just like this and explain everything

[tswheel]

Great Demo Paul! I've just discovered the raspberry Pi and find your videos very helpful.  I'm somewhat a late bloomer to computers. Keep the videos coming!