Each variant of the Raspberry Pi has a different Pi 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 and Pi 3 introduced new CPUs and additional memory.
Finding your Pi Revision Number is a useful technique to identify what model of Pi you have and, in some cases, where it was manufactured.
Methods for Finding Raspberry Pi Revision Number
The variants currently available are :
https://www.raspberrypi-spy.co.uk/2012/09/checking-your-raspberry-pi-board-version/
Method 1 – Pinout Utility
In the new versions of Raspbian the pinout command was added. This can be run at the command prompt or via a terminal window :using :
pinout
and the output will look something like this :
Method 2 – cpuinfo File
The traditional method of finding the Pi Revision Number was reading the “cpuinfo” file by running 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”.
Checking Your Raspberry Pi Revision Number & Board Version
https://www.raspberrypi-spy.co.uk/2012/09/checking-your-raspberry-pi-board-version/
Raspberry Pi Revision Number & Board Version
RaspberryPI models comparison
https://socialcompare.com/en/comparison/raspberrypi-models-comparison
Getting the Raspbian Version on a Raspberry Pi
https://pimylifeup.com/raspbian-version/
check Raspbian version
https://www.unixtutorial.org/check-raspbian-version
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