Playing with Python in the wild Amazon (elastic cloud)

This Easter bank holiday, I spent some time working on a little problem I have at work with a simulation I’m writing in Python. It’s basically a Monte-Carlo simulation which is performing billions of calculations. To be more exact, the simulation is a script that performs about half a million of calculations and it has […]

Multiple computers on a desk…

At work, I have been working with two computers over the past few years. That involved having two screens, two mice and two keyboards on my desk. I wasn’t very pleased but I could live with it. When I realised I would have to get a third computer, it became apparent that I needed a […]

PIR sensor + Arduino + Processing + Skype…

This post is about a simple and interesting combination of software and hardware. Last week, I picked up a couple of PIR sensors from Ebay. PIR sensors are (usually) easy to interface with an arduino board. Red: 5V, Black: Ground, Yellow: Analog In. Could it be easier than this? After a bit of experimentation, I […]

Simple Analog Signal Meter

I bought a couple of these signal meters from Maplin a few months ago and today I found some time to try them on an an arduino. Maplin sell these for £4 each, which is probably quite expensive for what they really are, given the cheap plastic material and the overall quality: just to give […]

Arduino-based keyboard for Windows

Today, on the arduino.cc forums, a user had the following problem: he wanted to start video in quicktime by pressing a custom button on an arduino. Basically, the arduino board should act as a simple keyboard for the computer. I found this problem interesting and I ended up solving it. Here is the link to […]

Automating Screenshots with AutoHotKey

This is a tiny little script that can be extremely useful. 1 2 3 4 5 6 7 8 9 10 loop { ; /capture=0 takes a screenshot of the whole desktop ; /capture=1 takes a screenshot of the active window ; /capture=2 takes a screenshot of the client area of the active window Run, […]