Checking Your Raspberry Pi Board Version

There have now been a few 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 and an additional Input/Output connector.

The variants currently available are :

Model and Pi Revision Hardware Revision Code from cpuinfo
Model B Revision 1.0 0002
Model B Revision 1.0 + ECN0001 (no fuses, D14 removed) 0003
Model B Revision 2.0 0004

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 Revision 1.0 with a hardware revision code of 0002. This is not a Revision 2 board!

The differences between the board revisions are minor but it now makes it sensible to identify which board revision you are using when creating hardware or software.

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