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AC Motor / Generator Project
This project started one night while I was lying in bed trying to visualize how an AC motor worked. I knew that it was different from a DC motor as in it did not require brushes and the speed was...
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Basic Stamp tokenizing and flashing from the Linux CLI
For those of you who aren’t familiar with the Basic Stamp, its a small microcontroller available from Parallax. It runs at a whopping 20Mhz and has a full 2K of storage on board for instructions....
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Data encryption in Linux using Truecrypt
Personal data security is often overlooked by many computer users today. As people use their computers more, they never stop to think about how much personal data is accessible on their hard drive. I...
View ArticleClass Serialization in Perl
Serialization in Perl is the process of saving a class with multiple data types to a scalar (string of bytes). This can be used to save objects to a file or to transmit objects across the Internet. For...
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Encoding an image to sound
The purpose of this project is to encode an image to a sound that can be viewed with a spectrogram. For some time I have known that musical artists have encoded pictures into their music. Most notable...
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Using a packet sniffer to track games/applications phoning home, and how to...
The other day I was trying to play an old game I bought some time ago on my LAN. I was just trying to enjoy a little cooperative bot killing fun with my buddy, but for some reason, the game kept...
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Fractal Mountain Generation with Qt and OpenGL
The purpose of this project is to create 3d mountain terrain using a recursive midpoint displacement formula. For this project I decided a GUI would be useful, that way manipulations could be seen in...
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Laser Modem with an Arduino Microcontroller
This started when I ordered an IR led and phototransistor pair from Spark Fun along with some spare ATMega168 microcontrollers. I first experimented using the IR led to transmit 2400 baud serial to the...
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Testing an El84 Vacuum Tube with 9v Batteries
I  have always been interested in vacuum tube amplifiers, however the high voltages from the mains has always kept me from experimenting with them. About a year ago I played with an low power tube the...
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Home made 555 timer from NPN and PNP transistors
Before the 555 contest was announced I was reading the free online book 50 555 Circuits from talking electronics. I was very amazed with how much could be done with the 555 timer. So I decided the best...
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Experiments With Audio Vacuum Tubes
Previously I tested a El84 using series of 9 volt batteries to generate the high B+ voltages. While it was very simple by nature, it still fell short of the desired voltages that are required to make a...
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Element 14 XL_Star Review
Last week I received an Element 14 XL_Star board from Farnell/Newark. My condition for receiving this board was that I do a review. I must admit that I have been on a quest for the perfect controller...
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Drawing Lissajous Curves on a Oscilloscope
Lissajous curves (http://en.wikipedia.org/wiki/Lissajous_curve) are two dimensional figures where the points (x,y) are defined by sine functions with different coefficients: x = sin(t) y = sin(at+b) By...
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Mining on an R9 290 in Linux
Picked up a couple of the newer R9 290s to add to my mining rig recently and encountered a number of problems with the latest AMD/ATI drivers as well as cgminer. It seems to be fairly common for the...
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Building a Delta 3d Printer Part 1
So I have always been interested in delta printers and I have finally gotten my Mendel Max 2 working well enough where I can begin to print parts to build one. I spent some time on reprap.org and...
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Encoding an image to sound
The purpose of this project is to encode an image to a sound that can be viewed with a spectrogram. For some time I have known that musical artists have encoded pictures into their music. Most notable...
View ArticleClik here to view.
Fractal Mountain Generation with Qt and OpenGL
The purpose of this project is to create 3d mountain terrain using a recursive midpoint displacement formula. For this project I decided a GUI would be useful, that way manipulations could be seen in...
View ArticleClik here to view.
Laser Modem with an Arduino Microcontroller
After programing the Arduino, I took out the ATMega168 and wried it into a breadboard along with a 16mhz crystal and 5 volt regulator. For the receiver I used the phototransistor wired into two logic...
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Testing an El84 Vacuum Tube with 9v Batteries
I have always been interested in vacuum tube amplifiers, however the high voltages from the mains has always kept me from experimenting with them. About a year ago I played with an low power tube the...
View ArticleClik here to view.
Home made 555 timer from NPN and PNP transistors
Before the 555 contest was announced I was reading the free online book 50 555 Circuits from talking electronics. I was very amazed with how much could be done with the 555 timer. So I decided the best...
View Article