4.5
235 reviews
10K+
Downloads
Content rating
Everyone
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About this app

RPiREF for Raspberry Pi is an easy and quick way of checking the Pin-out and GPIO references of Pi's P1, P5, P6 and J8 Headers.

This information is already available in a number of forms but having it available on your Android smartphone or tablet is useful when you are experimenting or discussing Pi ideas with friends.

This app provides reference information and covers :

Model A & B
- Pin numbering of the 26-pin GPIO Header P1
- Pin numbering of the P5 Header on Rev 2 boards
- P6 reset header
- 3.3V, 5V and ground pins
- Status LEDs
- Audio Jack (stereo audio)

Pi 3, Pi 2, A+, B+ and Pi Zero
- Pin numbering of the 40-pin GPIO Header J8
- RUN reset header
- 3.3V, 5V and ground pins
- Status LEDs
- Audio Jack (stereo audio and composite video)

The app also contains some simple tips to identifying the different models.

The Zoom button on the GPIO header page allows you to set a zoom level so you can see the diagram in a size that suits your device and eye-sight. Just like the Model setting this is remembered between sessions.

This app is free and contains no adverts but does include a link to my RaspberryPi-Spy.co.uk website at the foot of some pages where you will find an article relevant to the screen you are looking at.

Don't guess. Check your connections with RPiREF!

If you rate this app please do so based on the app and this description. I don't claim it "connects to a Raspberry Pi" so please don't be too surprised if it doesn't :P

PERMISSIONS : This app does not ask for any unnecessary permissions. Just the way I like it!
Updated on
Nov 20, 2016

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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Ratings and reviews

4.4
197 reviews
Leon Barnes
January 8, 2021
Needs updating to include raspberry pi 4b and raspberry pi 400
2 people found this review helpful
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Paul Milton
January 26, 2021
Way out of date.
1 person found this review helpful
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A Google user
June 2, 2017
This is a must have for any pi user!!!! But I did notice that pi zero isn't right the photo is from the pi 3. Plz fix then u get 5 star
4 people found this review helpful
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What's new

Updated all information for Pi 3, Pi 2 and Pi Zero.
Added "tap to zoom" feature to GPIO diagrams. This cycles between three different zoom levels.