Checking Your Raspberry Pi Board Version & Revision Number


There have now been a number of revisions to the Raspberry Pi PCB so the device you have in front of you could be one of a number of variants. The changes include mounting holes, modifications to the power supply circuitry, different GPIO headers and varying numbers of USB ports. The Pi 2 introduced a new CPU and additional memory.

The variants currently available are :

Model and PCB Revision RAM Hardware Revision Code from cpuinfo
Model B Rev 1 256MB 0002
Model B Rev 1
ECN0001 (no fuses, D14 removed)
256MB 0003
Model B Rev 2 256MB 0004
Model A 256MB 0007
Model B Rev 2 512MB 000d
Model B+ 512MB 0010
Compute Module 512MB 0011
Compute Module 512MB 0014 (Embest, China)
Model A+ 256MB 0012
Model A+ 256MB 0015 (Embest, China)
Model A+ 512MB 0015 (Embest, China)
Pi 2 Model B v1.1 1GB a01041 (Sony, UK)
Pi 2 Model B v1.1 1GB a21041 (Embest, China)
Pi 2 Model B v1.2 1GB a22042
Pi Zero v1.2 512MB 900092
Pi Zero v1.3 512MB 900093
Pi Zero W 512MB 9000C1
Pi 3 Model B 1GB a02082 (Sony, UK)
Pi 3 Model B 1GB a22082 (Embest, China)

In order to find out what hardware revision you have you can run the following command at the command prompt or via a terminal window :

 cat /proc/cpuinfo

This will give you a text output something like this :

Processor       : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS        : 847.05
Features        : swp half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xb76
CPU revision    : 7
Hardware        : BCM2708
Revision        : 0002
Serial          : 000000000abc0ab1

In this example I’ve got a PCB with a Revision code of 0002. That is a plain old “Model B Revision 1.0”.

NOTE : The Revision number given in cpuinfo file is the hardware revision number. This is not the same as the Raspberry Pi Revision. In this example I have a Model B Revision 1.0 with a hardware revision code of 0002.

Model Information

With the latest version of Raspbian you can also retrieve the Pi model as a string by using :

cat /proc/device-tree/model

This will output the model information. For example :

Raspberry Pi 3 Model B Rev 1.2




  1. Dear Matt, I’m familiar with interfacing the old bbc micro but new to RPi. I’m designing an I/O board and am confused about the GPIO PINOUT. My RPi has cpuinfo as follows…
    Hardware BCM2708
    Revision 000e
    Serial 000000003dc78485
    Which pcb revision do I have?
    Best wishes

    • Almost certainly a Rev 2. It will have two mounting holes in the PCB. At the time I did this article the Rev 2 was fairly new which is why my table doesn’t cover the newer “Revision” numbers.

  2. Rodney Shinkfield on

    Just a bit of updating: 17th July 2014 – I’ve just bought the Raspberry Pi B+ and the revision number is 0010.

  3. Great stuff – I now know what model I have. How do I turn this into useful documentation – I/O configuration, schematic/circuit diagram particularly the former?

  4. I received an A+ with board revision 0015 – do you know what has changed in this revision? (compared to the A+ with 0012)

    • I’ve not seen any references to 0015 so at the moment the differences are unknown, if indeed there are any differences.

  5. Thanks for the information. A quick Bash command for focusing on the desired string (“Revision”):

    pi_rev=(`cat /proc/cpuinfo | grep Revision`); echo ${pi_rev[2]}

    The above table and this Bash logic would make a very straight-forward Python program design. That is, given a Revision string value, show the mo0del and its characteristics.

  6. It’s a bit confusing when you say Pi Zero W = 0x9000C1 (I know it’s the hexadecimal notation)
    In /proc/cpuinfo it’s 9000c1

    Nice overview anyway!

  7. To get the Pi model in plain text, you can use this:
    cat /proc/device-tree/model
    might return “Raspberry Pi 3 Model B Rev 1.2”

  8. Great info, just got a new pi 3 and the board was a slightly different shade of green. seems its the first of my pi 3’s that i have to be from the UK. So now i have 2 pi 3’s from china, 1 from the UK, 1 b+, 1 pi zero 1.2, 1 Pi Zero W, and my first is a model b rev 2 with 512 mb ram.

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