Node-RED Interoperability Test

After a few months of working with Node-RED, I thought it was about time to give something back to a great community. I decided to document my search for a good Internet-of-things platform on the web and the steps I had to take to make Node-RED talk to them.

Please find [...]

On-the-fly GPS visualisation through Node-RED

After I’ve had @ceejay and @hardware_hacks send me code examples for putting geographical coordinates onto Open Street Maps or Google Maps, I feel I should at least publicly document how I’ve gone about it in the end.

I’m receiving JSON sentences through a serial-in node in Node-RED. These are already well [...]

Turning a Nook Simple Touch into a wireless screen

At the recent ARM IoT Hackathon my closest competitor Ajith Shadakshari presented a hardware hack that utilised a Nook Simple Touch e-reader device as a low-energy wireless screen to dynamically display room occupancy, as informed by a data stream. I’m usually not one for hardware hacks as it is quite simple to [...]

Open IoT hackathon

On Friday 7th March technology company ARM hosted a hackathon, sponsored by the Technology Strategy Board (TSB) IoT Ecosystem Demonstrator competition. The IoT research branch of ARM along with and others collaborate in the @OpenIoTProject in the exploration of connected IoT systems. Part of this exploration was the hackathon, where various data [...]

AirPi speaks NodeRED

Introduction and general workflow described below. Fixing an issue about Xively flooding thereafter.

One of the success stories for young enterpreneurial spirit sparked by the Raspberry Pi is the AirPi. After this open-source open-hardware 8-sensor air quality and weather station originated in a student competition to help ‘others [...]

My first steps building something useful

So far in this not very frequently updated personal/technical – the “hobby” – section of my blog, I’ve shown some first steps with the Raspberry Pi and an example how we use cheap microelectronic devices to monitor the temperature of our lab equipment. I’ve grown quite fond of Ciseco, an English Internet-of-things company [...]

RPi mentions

I presented at two past Raspberry Jams in Cambridge.


Blog posts mentioning my wireless sensors that I showed off at the Jam in July at Cambridge Consultants are here:

from Railway Electronics

from Recantha (featuring a really angry looking Boris)

from Ciseco



A radio interview with me and my son Finn that [...]

DIY remote temperature sensor

(If you’re not interested in the history and just want the technical bits, scroll down to Implementation.)

Over the past few months I have been playing with a Raspberry Pi (RPi), an extremely cheap credit card-sized Linux computer (see Do try this at home for a report of my first explorations). [...]

Raspberry Pi – do try this at home

My 7-year old son has recently started learning about electricity in primary school. As I’ve always tried to get him interested in computing and coding (he’s been using Scratch in a web browser for making drawings for a while), I thought this might be a great opportunity to introduce him to simple [...]

Using FlyMine power in Perl…

…or Python. Or Ruby. Or Java.

Our research group shares office space with Gos Micklem’s group of InterMine developers. That’s why we often have access to great new tools at the beta stage. Something that has matured to something extremely useful is Alex Kalderimis’ API to access InterMine instances, available for a variety of [...]