Discovering I2C with the Bus Pirate

Submitted by N8WDU - Kevin on Sun, 01/03/2016 - 17:39

I had a few I2C compatible sensor break-out-boards from sparkfun laying around in my project box. I intend to use them in a future series and they seemed like good test devices to interact with.

Figuring Out the Bus Pirate

Submitted by N8WDU - Kevin on Sun, 01/03/2016 - 04:17

I've been reading here and there about the interesting things you can do with a JTAG interface on a piece of equipment. Wanting to experiment with JTAG (and with other hardware protocols) I picked up a Bus Pirate to see what the fuss was all about. I admit that I know very little about the Bus Pirate, but the idea of attaching wires from it to another device, and they monkeying around with it from a command prompt was just too tempting to pass up.

SDR CTF: Commercial FM with GNU Radio

Submitted by N8WDU - Kevin on Fri, 12/04/2015 - 02:02

If you felt a little let down by the simple act of using a GUI like SDRSharp or GQRX to listen to commercial FM and wanted a little more challenge, then give GNU Radio a try. You will learn a lot about Digital Signal Processing and Software Defined Radio in the process. Things are going to get a little theoretical at first.

Tags: 
CTF
gnuradio

SDR CTF: Air Band

Submitted by N8WDU - Kevin on Sun, 11/29/2015 - 20:11

Between Commercial FM and the 2-Meter Amateur band is the air band used by commercial aviation for air traffic control and navigation. I picked up a sectional aeronautical chart which has helpful information on what channels are used by which airfield and the location of radio navigation devices. In areas where there is not an identified channel on the chart, you may find traffic on 121.5 (the emergency channel,) 122.2, 234.0 and 255.4 MHz. Also of note, on one of these charts you can find the highest points in the area either geographically, or towers or buildings.

Tags: 
CTF

SDR CTF: APRS (Automatic Packet Reporting System)

Submitted by N8WDU - Kevin on Wed, 11/18/2015 - 03:09

APRS is still one of my favourite modes with its squawky packets bursting, and your map slowly filling up with icons. I always felt it had a huge potential for coordinating events. It felt like a natural fit for EMCOMM.

Tags: 
CTF
APRS

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