Basics continued, buttons and interrupts on a pi. // posted 1 year ago.

Now that I know the basics of a breadboard and successfully turned a LED on/off using the GPIO pins, I wanted to introduce buttons into the mix. If you want to click a button and have it do something then read on... 

There is quite a bit of information we should familiarize ourselves with related to the rpi and buttons; polling vs interrupt, threaded callbacks, software debouncing.

I won't go into detail here about all this, but these websites helped me understand how to make this work..

Tagged as .

The basics, turn LED light on/off using a Pi // posted 1 year ago.

So where does one start when we don't really understand how a breadboard works? How about we get some basic stuff out of the way and create a simple LED on/off program using the RPi.

I should make a note that most of the stuff here has been taken from The Pi Hut. By going through this exercise and making my own notes here it seems to stick better.

Make sure you understand the breadboard basics, very important!

Tagged as IoT, hardware.

Raspberry Pi 3 first boot // posted 1 year ago.

Before we can boot, you need to flash your SD card with the  Raspbian OS, at the time of writing this is Raspbian Jessie Lite 4.4 using a tool like Rufus that can take the .img file and write it to the SD card using a USB memory card reader.

    Once you have booted up to the user prompt, login and setup your environment (notes below).

    Tagged as hardware, IoT.

    Dabling with the Internet of Things // posted 1 year ago.

    Over the last few years I have lurked various maker/hacker blogs related to 3D printers, CNC machines, kicktarter, and IoT. Being a sysadmin by day I really wanted to explore this space and learn a few things but last time I looked into this the culture was still in its infancy so I waited a few years for things to get fine tuned.

    Tagged as hardware, IoT.

    Capture Exchange 2013's logs with NXLOG-CE // posted 1 year ago.

    We all know that Exchange is probably the single biggest server in any environment. Often times when we are troubleshooting mail flow issues the hardest part is sorting through the logs and most of the time you find that the logs you need are no longer there because the default retention on exchange logs is too short.

    This guide is an alternative to cloud based solutions that are ready to sucker you into paying a monthly fee for a pretty interface with half the functionality of rolling your own private logging infrastructure. Chose to become an expert on the matter and build out your own solution in the private cloud using enterprise-ready tools like Elastic Search and GrayLog2.

    Tagged as sysadmin, GrayLog2.