3rd May 2017 | By:

Motorised Blinds

Although sunshine is considered to be a relatively rare commodity in London, and is almost always welcomed, it has also been the source of a long-standing frustration. Being a light sleeper, I have often struggled with the amount of light… Continue

19th December 2015 | By:

Step Up (Boost) DC-DC Converters

A common requirement for many applications is the ability to convert the input power. Usually, a device will have a single power input which could be from a battery, directly from mains, or perhaps it will accept a specific voltage… Continue

15th December 2015 | By:

Recovering a Dead Hard Drive

In trying to setup a new backup server, we blew up an original hard drive and lost the data we were hoping to back up! Plugging in the wrong power source to our hard drive resulted in smoke and the… Continue

13th December 2015 | By:

Analogue to Digital Conversion [PART 6 – AVR]

Having briefly covered the general theory behind Analogue to Digital Conversion (see Signals, Sampling, Aliasing, Resolution, Accuracy), we will now look at an actual implementation. In this particular case we will be using an embedded Microprocessor Unit (MCU), specifically the… Continue

12th August 2015 | By:

Driving an RGB LED

The use of RGB Light Emitting Diodes (LEDs) is very widespread. From the pixels that we see on advertising boards to indoor lighting that changes hue, they are being used more and more due to their power efficiency, long lifetime,… Continue

21st July 2015 | By:


For the new project we are doing on our free time (Inverted pendulum, Video) we need a way of controlling a motor so we can change in which direction it spins. We decided that a simple way to solve this… Continue

19th June 2015 | By:

How to Build a Binary Clock [PART 2]

When the basic algorithm of turning the diodes on and off is done and tested, it’s time to build the full prototype. This part was completely new for me, as I’d never done anything like it before. The first step… Continue

15th June 2015 | By:

How to Build a Binary Clock [PART 1]

Electronics have always been very interesting for me, but I’ve never had a lot of opportunities and tools to try it. Now, as our office has become more of an electronics lab, I can start to get closer to the electronic part… Continue

28th January 2015 | By:

The Joule Thief

The joule thief is a fascinating circuit with the ability to “steal” every little bit of charge left in a battery and power a device which would otherwise consider the battery to be dead. Many applications cut off when the… Continue