Electronics
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

Engineering
30th December 2015 | By:

Strain Gauges [PART 1 – Strain Definition]

This series of posts will cover the fundamental principles of strain gauges, and provide a brief introduction of how they work and how they can be used. Measuring strain is a very basic necessity for a wide range of engineering… Continue

Engineering
24th December 2015 | By:

Strain Gauges [PART 2 – The Sensor]

The first part of this series covered the definition of strain, and provided a very basic description of the deformation that a member goes through under uniaxial tension/compression. This post will focus on how strain measurements can be taken exactly… Continue

Engineering
23rd December 2015 | By:

Why do kettles make so much noise?

The electric kettle is one of the most frequently used appliances – at least here in the UK – and yet few people ever question where the sound comes from when we put some water to boil. Sure, when the… Continue

Electronics
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

Electronics
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

Fun Zone
14th December 2015 | By:

How to Brew the Perfect Cup of Tea

If you are a true tea lover, or English, then you are certainly very particular and have your own specific rules when it comes to making a cup of tea. You might even cringe or scoff at anyone who might… Continue

Electronics
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