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
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
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
Part 3 picks up with the way the Pi Collectors operate and some of the tools I built to test the project along the way
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.
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
So have you bricked your Pi? By that I mean have you somehow hosed the start-up enough that the Pi never makes it to the log-in prompt or loads ssh so you can get connected remotely? There is a way to boot your Pi that bypasses the init.d startup scripts. Continue reading Pi Brick – oh no!
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
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
Tutorials are awesome, but what do you do when it stops working, or you tried a little experiment and now something that once worked is broken? Here are a few troubleshooting tips related to my projects, grouped by functionality. Continue reading Fix My Pi
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.
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
There are loads of web pages out there that are meant to guide you through the process of setting up your RPi for first use. I wrote this version as a reminder on how I created my “baseline” installation upon which all my projects are built. Continue reading Raspberry Pi First Steps