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Pi at Work

While it has been a while since I posted an article here, that is about to change. I have a special Raspberry Pi image which is an ongoing effort for over a year now. The goal was to create a portable compute tool that my colleagues and customers can use to test and troubleshoot cable modem networks and video applications over DOCSIS. I work with small scale DOCSIS CMTS systems and my Raspberry Pi build has a lot of applications installed that are meant to help you test and troubleshoot that environment. Continue reading Pi at Work

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Display Modes for RPi

Your Raspberry Pi will attempt to detect the modes supported by your monitor and make a choice for what is feels is the best option for the display mode. If you operate in a “headless” mode (no display attached at boot time), and then later decide to connect a monitor, you either get a very ugly display or none at all. The solution is to configure your Pi with the ideal HDMI settings. Continue reading Display Modes for RPi

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Pi2 Finally Arrived!

IMG_1773Yay! I got my new Pi-2 and today I am creating the good ‘ol WAP build which I use as the basis for all my other builds. So far it does seem a bit snappier, although I haven’t done anything unusual yet. I actually have 2 of them and I ordered 6 more. Yep.. addicted to Pi, I am.

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DXpedition Build – Part 2

Anytime you need a computer to do many things, there are challenges. The Pi Collector doesn’t have to scale to support a high connection volume or stream video, or handle high transaction rates. It just needs to work – and work reliably. It has to do its job unattended, headless and flawlessly. This mission has no time for failures or the unexpected. So our challenge is to make sure we use apps that are stable, and reliable. Continue reading DXpedition Build – Part 2

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Pi OSPF Router

This How-To project describes how to build a router that runs a dynamic routing protocol. I chose OSPF for this project, however other interior gateway protocols are becoming more popular, such as ISIS. To make this project go quicker, I used a previous Pi SD card build that already had support for a Wireless Access Point to make it easier to manage the Pi remotely. In that build we had installed the apache2 server, hostapd for Wi-Fi AP support, tftpd-hpa for tftp server, and the isc-dhcp-server to support the AP functions.
Lets get started.

Continue reading Pi OSPF Router

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At times you may need to connect networks together but you don’t necessarily have a spare router up your sleeve to make it happen. Well, while your waiting for the IT budget to come through, why not have a Raspberry Pi router in your back pocket for a temporary fix. It won’t be a barn burner, but hey, at least you can make some progress. Continue reading PiRouter

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tin-can-telephoneWhen I tell my friends that they can access their Pi remotely from Windows Remote Desktop their eyes light up.

So I thought I would post an brief article on xrdp – a nice little linux module that allows Windows machines to connect to the Pi graphically with the X-Window interface. Continue reading Pi RDP

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DXpedition Project


This project is about creating a special build of the Raspberry Pi for a Ham Radio Operator Club. Periodically Ham Radio Organizations partner with other organizations and government agencies to embark on “expeditions”. They travel to remote locations, set up a communications operation, and try to contact other Ham Radio Operators world-wide within a very specific time frame. These guys go to seemingly impossible locations, bringing their own power generation and resources. They leverage many laptop computers, a network, and a satellite uplink to record all the radio contacts made during the expedition. With power being so precious, using Raspberry Pi’s where possible is a huge help in saving energy. This story is about a configuration of Raspberry Pi’s to support such an adventure. Continue reading DXpedition Project

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For many years I have been seeking solutions to reducing my ever increasing cable TV bill, and to that end I built a Windows Media Center with a Ceton infinity PCI card and an HDHomeRun as video sources. I used the Xbox as a Media Center Extender, and for the most part it was great as long as I had a wired connection. But the Xbox was expensive and at the time remote controls were not great, and people complained that we could not use Video on Demand. I succumbed to the pressure and went back to the expensive Cable STB/DVR and non-DVR STB – which cost me $17.95 plus $9.95 respectively, altogether $27.90 extra per month. Enter the Raspberry Pi.

Continue reading Pi PVR

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Pi Wi-Fi Access Point

I searched the web for instructions on how to set up a RPi as an access point using a Wi-Fi adapter, and found some very good material. Dave Conroy has a how to that is the basis of this post. As with most situations there were some tweaks to fit my needs. So I thought I would offer up my experience on how to build a wireless router with an RPi.

Update: Feb 17, 2015 – I repeated this with my raspberry pi 2 and nothing needed to be changed. 🙂 Continue reading Pi Wi-Fi Access Point