Several years ago I purchased a small video camera that was shaped like a flashlight for $50. It had VGA 640 x 480 30 fps video quality and would record up to 2 hours on a single charge. I used it to record several bike rides around the county on numerous bike trails. The videos provided a way to recall the conditions and experiences which I used to plan future trips. A couple of years later I purchased some 808…
This project involves working near and around the electrical service panel. Do not perform these steps unless you are a licensed and qualified electrician. You assume all risk and liability. The information contained here is merely for reference purposes, I do not take any responsibility for the loss of property or life should anyone not follow this warning. Home energy use accounts for 11% of the total energy consumed nation wide. Typically, homes have a variety of energy services provided…
Custom Data Sources Now that Cacti is up and running, let’s get some data from data sources that typically aren’t covered. The Raspberry Pi is unique in the sense that CPU temperature can be monitored using a program called vcgencmd. Great thing about this program is it’s already installed. Run the following command from the terminal. [bash] vcgencmd measure_temp [/bash] You should get a reading back along the lines of “temp=42.0’C”. If you do, great. We’re going to need to…
Introduction and Background I had posted about Cacti and setting up graphing from unorthodox data sources before. When I stepped back through those documented steps, I didn’t get the expected results. The inaccurate and vague information on that post prompted me to take a hard top to bottom look at the process. For anyone that had viewed that post and become confused by it, I do apologize. I dedicate this post to you as a humble attempt to right my…