CloudACM – Page 50 – Autonomous Computational Machines

Cacti and Custom Data Source Monitoring Part 2 of 2

March 13, 2017 Patrick Gilfeather

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…

Cacti and Custom Data Source Monitoring Part 1 of 2

March 6, 2017 Patrick Gilfeather

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…

Control and Distribution of Power – ATX and Pi

February 27, 2017 Patrick Gilfeather

The sensors and devices that I plan to control are located several meters from each other. This is just the nature of things. If I want to successfully deploy and reliably use the system, it means I’ll have to reconsider how everything is powered. The bench in my lab allows me to use AC adapters to power the devices. The wall outlet is nearby and I don’t have to fuss so I can focus on other things. This isn’t true…