Software for the Arduino Enigma Cipher Machine


In the current August 2014 issue of APC Magazine, I’ve written about a functional-replica of an Enigma Cipher Machine that I’ve designed and built using an Arduino Uno microcontroller board.
But if you’re looking for the software, it’s on the APC magazine website but at in the August 2014 section.
Hopefully, it will be transferred to the regular Arduino page ( page shortly.
Sorry for the confusion.
The Arduino Enigma displays everything on a 16×2-LCD module shield and accepts… Read more

Turn an Arduino Uno into a digital audio recorder


One of the great things about Atmel’s ATMEGA328P microcontroller that powers the Arduino Uno boards is the sheer versatility of the chip. It might only clock in at 16MHz and process data in 8-bit chunks, but it has so many practical real-world interface options that helps it punch well above its weight.
My favourite part of the chip is the ADC or ‘analog to digital converter’. By rights, it’s only a 10-bit ADC and only has a rated sample rate… Read more

How to calculate log2 without the real function


In computer science, being able to count in binary is pretty much a prerequisite. So too is being able to quickly work out the decimal range of a binary number by just knowing its length in bits. For example, an 8-bit number has 256 levels; a 10-bit number 1024; a 16-bit number 65536.
But working back the other way – this is, finding the number of bits based on the number of levels – is a bit harder. Calculators have a… Read more

NSWGR Garratt 6029 returns to steam


Before it was a gaming platform, Steam used to mean the combination of heat and water and for more than 100 years, it powered locomotives that drove the world’s economies and epitomised the industrial age.
The Age of Steam officially ended in New South Wales in March 1973 as one of Australia’s largest ever steam locos, British-built Garratt 6042, steamed through a banner in Newcastle, north of Sydney, marking the occasion.
Five days ago, one of its siblings that escaped… Read more

Tablet reviews galore! –


In the market for a tablet? Well, you’ve come to the right place. Well, actually you should head over to and read through a bunch of my reviews that have just gone up on the site.
You’ll find reviews of Lenovo’s Yoga Tablet 10 and the IdeaPad S6000, Samsung’s Galaxy Note 8.0, the Gigabite Tegra Note 7 P1640, ASUS Transformer TF701T, the Toshiba Encore, Acer’s Iconia A1-830 and W4 plus the Omni 10 from HP.
Having run performance and… Read more

My stories in APC magazine August 2014 issue


I have a number of stories in the August 2014 issue of APC magazine (out now):
* The cover feature is all about how to setup your own ‘ultimate home media jukebox’ and my part is showing you how to rip your DVDs and Blu-ray discs and converting them to H.264 video format using my brand-new APC Simple Video Converter 3 app. (H.264 is the ideal format, not only supported by virtually all hardware media players, but just about every… Read more