Browsed by
Month: December 2014

RPi audio processing

RPi audio processing

Introduction – I can’t hear a word you’re saying The RPi has all sorts of topics but when it comes to big audio dynomite, forgedaboutit. When the image and video processing topics were outlined at the onset of the RPi studies, I didn’t give sound processing any thought. However, as the weeks progressed, I began to realize that the RPi could over shadow the Arduino as the platform of choice in the sensor helmet project. One of the key sensors…

Read More Read More

RPi email using sSMTP

RPi email using sSMTP

Introduction – There has got to be an easier way. After setting up Cacti and automating tasks with CRON and Webmin, email notification was the next step.  Searches for sending email from Linux typically generate results that gravitate around sendmail.  This is no different for the RPi.  Sendmail has its good points, but its a service that runs constantly and provides features well beyond simple email notification. I wanted a binary that just sends emails and only runs when I need…

Read More Read More

True RPi Infra Red Imaging

True RPi Infra Red Imaging

Introduction – It can start with an email In this case, it did.  The folks over at Sparkfun sent me product offering email that had an interesting breakout, the FLIR Dev Kit.  This is essentially a camera module that senses in the infra red spectrum.  They mention some details about the breakout on their website, so go check it out if you want more details. Purpose – They have an app for that…no, seriously they do. A few months back I…

Read More Read More

My Book – Raspberry Pi MDAQ

My Book – Raspberry Pi MDAQ

Introduction – I have a book…sorta One of the goals of this quarter, as well as the following quarters, is to publish the posts into a book format.  My ebook is in draft on Leanpub.   I have to admit the markup language and procedures for uploading the content took a bit to get used to.  Once I got past that, the content from the posts were a snap to get on the book. Purpose – Whats the big deal about a book?…

Read More Read More

Cacti, RPi, and GPIO device readings

Cacti, RPi, and GPIO device readings

Introduction – CactiPi isn’t as hard to eat as you might think. In my earlier post, the RPi command and control features have been an excellent way to show capabilities. Webmin showed how complex admin tasks can be done graphiclly, without the need for a desktop environment. Smokeping was introduced, but not covered in detail. This tool is usefull in identifying host availability on the network, but it doesn’t go much further. This is were Cacti comes into play. This is…

Read More Read More