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Identify and Shop for Raspberry PI

There are several Raspberry PI models. The model used by TARPN is called a B and is particular in that it has EtherNet built in.

In order to build a TARPN packet node, you will one of these and it will be dedicated to running your node. In order to be compatible with the assembly instructions on the TARPN web site, we will be making physical modifications to the Raspberry PI which may make it incompatible with some daughter cards. If you decided you will get a case for the Raspberry PI, that case must expose the expansion connector shown on the top of these photos. I recommend the Zebra case for those who will not be using custom cabinetry for their node.

Of the five common versions of Raspberry PI B, there are four which are supported for the TARPN packet node.
All five models were listed at $35. You can get one for under $40 easily, including shipping.
Three of these models have 4 USB ports, while the other has only 2 USB ports. Newer models are faster. All will run the TARPN programs.

Here are photos and recognition details for each of these model B Raspberry PIs.


February 28, 2016
Raspberry PI 3 Model B v1.2
1.2Ghz 64bit 4-core processor, 1024MB of RAM, 4 available USB ports, 100baseT Ethernet, HDMI, stereo audio, 40 pin expansion header, WiFiN, Bluetooth 4.1, BLE.
List price is $35.
This board is known to work -- the only caveat is that it can't talk to an uninitialized TNC-PI. The good news is that the TNC-PI come initialized if ordered with the link on the TARPN TNC-PI page so this is not a problem.
The other good news is that this is really fast compared to the previous models.
Physically the Raspberry PI 3 is meant to be backwards compatible with the prior version so the holes and connectors are in the same places.
This would be the desired model. It says Raspberry PI 3 Model B on the top of the board.
This Raspberry PI requires a Class 4 microSDHC Flash card of 8MBytes or higher
Amazon for Raspberry PI 1.2Ghz 64bit
rpi-2-model-b_1-800x800
February 1, 2015
Raspberry PI 2 Model B
900Mhz 32bit 4-core processor, 1024MB of RAM, 4 available USB ports, 100baseT Ethernet, HDMI, stereo audio, 40 pin expansion header.
List price is $35.
This board works well with the current TARPN scripts
It is meant to be backwards compatible with the prior version so the holes and connectors are in the same places. It says it is a Raspberry PI 2 Model B on top of the board.
This Raspberry PI requires a Class 4 microSDHC Flash card of 8MBytes or higher
Amazon for Raspberry PI 2 900Mhz QuadCore 1024MB
rpi-2-model-b_1-800x800
July 14, 2014
Raspberry PI 1 Model B+
This model was called Raspberry PI B+.
600Mhz processor, 512MB of RAM, 4 available USB ports, 100baseT Ethernet, HDMI, stereo audio, 40 pin expansion header
This board works well with the current TARPN scripts
A key identifying feature for this model is that it has four mounting holes, 4 USB ports. Says Raspberry PI B+ with a V number on the top of the card.
This Raspberry PI requires a Class 4 microSDHC Flash card of 8MBytes or higher
Amazon for the Raspberry PI Model B+ 700Mhz 512MB
raspberry_pi_bplus
Oct 15 2012
Raspberry PI 1 Model B rev 2
600Mhz processor, 512MB of RAM, 2 available USB ports, 100baseT Ethernet, HDMI, composite video, stereo audio, 26 pin expansion header
A key identifying feature for this model is that it has two mounting holes.
This board works well with the current TARPN scripts
This Raspberry PI requires a Class 4 SDHC Flash card of 8MBytes or higher. Note, this does not use the micro SD card.
Click for larger image. Note on image: The black-tape on the USB connector housing was added to keep the TNC-PI from shorting out. The mounting holes are partially obscured, one by a threaded spacer inserted into the hole. the other by the black tape.

2014_05_n41185or_working_raspberry_pi
Feb 28 2012
Raspberry PI 1 Model B rev 1 -- NOT SUPPORTED BY TARPN

This is the model of Raspberry PI will not be supported for TARPNs.
A key identifying feature for this model is that it has no mounting holes.
Click for larger image. Note on image: The heat-sinks were added by the owner. They are not present on most units.

2014_05_n41184pr_wrong_raspberry_pi_300x200

Mostly complete family photo
raspi_tv_family_photo_2014

And another: Mostly complete family photo
raspi_tv_family_photo_late_2015
© Tadd Torborg, 2014↝2017 -- all rights reserved