I have googled this so many times I thought I would put it down for myself. I found this great blurb on Tony Arkles blog. Here’s a stupid unix trick: scp is an awesome tool for moving files around between unix-y machines (for instance, my Mac laptop and my Linux HTPC). Often enough, though, I … [Read more…]
After running my Ubuntu systems on nagios, I noticed that fresh installs of 12.04 have /boot volumes that get prematurely full. This is a common problem because old out-dated kernels do not get deleted. I have found this one-liner all over the internet but I put it here so I can reference it. dpkg –get-selections|grep … [Read more…]
I wrote a follow up article to Environmental Monitoring with Arduino this past week. In it I talk about how you can put data into a database and hook up Nagios monitoring software to see if the sensor is running. Check out Nagios Monitoring with an Arduino.
Last night I saw a beautiful moon ring in our backyard. I took out the tripod and snapped a few pictures.
I am on a walk with Jumper and I came across this roaring creek. Your browser does not support the video tag
I wrote a blog post for work about gathering temperature data with an Arduino. My example was for server rooms but this could be used anywhere you want to take a temperature reading. Check it out at http://techblog.safaribooksonline.com/2012/11/10/environmental-monitoring-with-arduino/
I made a Tweet-A-Watt last year which is a hacked Kill-A-Watt wall plug that sends data wireless to a computer. The twitter API has changed a lot since then, it now uses OAuth to authenticate tweets. I cloned ladyada’s Tweet-A-Watt github repo and started getting to work. My code isn’t ready to push up to … [Read more…]
This past weekend I made a server rack for my shed out of 2x4s. I used the design concept from Mythos & Rini which I tweaked slightly for my space. I needed a short rack I could wheel out from under a shelf. This rack is screwed together and feels very sturdy. The front wheels … [Read more…]
Software projects should have three environments: development, staging, and production. These environments should essentially be identical. In practice this isn’t always possible but we should try to get as close as possible. Every developer has a development environment for each of their computers. This means WebDeveloperA could have one development environment on her laptop and … [Read more…]
This weekend I made an Atari Punk Console out of some wood and PVC scraps. I wanted to make a portable player that could feed into a larger amplifier. I added a line out to the system for this purpose. The wood and PVC are glued together but the PVC to PVC connection is free. … [Read more…]