Central Heating Monitor

Gas Use Monitor Connectors

A “box” to monitor various aspects of a central heating system – and software, etc.

robCentral Heating Monitor

Spidey Wall for Real


Rupert’s guest post has given me the kick required to “finish” the Spidey Wall – here’s a video to show what it does.

robSpidey Wall for Real

A Reliable MBED WebServer

20150830 Chrome timing of POST Clear RawFill SendLeds

I’ve had several goes at making a fast and reliable web server for MBED. Now I think I have finally cracked it!

robA Reliable MBED WebServer

Spidey Wall Animation

Pop animation for Spidey Wall

This is a guest post from fellow LED fan Rupert Rawnsley who has developed a great animation

Rupert RawnsleySpidey Wall Animation

Spidey Wall PacMan

Spidey PacMan

A variant of PacMan for the Spidey Wall – please try it out

robSpidey Wall PacMan

Spidey Wall

Spidey Wall

The Spidey Wall is intended to evoke Spider-Man’s costume and contains almost 2000 individually addressable coloured LEDs

robSpidey Wall

Scara Arm Calculations


A small library to simplify calculations on SCARA arms on an MBED

robScara Arm Calculations

Sensing Mains with Mbed/Arduino


Using an off-ebay voltage alerter as a heating pump monitor on an MBED/Arduino.

robSensing Mains with Mbed/Arduino

Our home heating system sucks!

Partly it’s the up-to-temperature problem where centrally located thermostats register that all is well while some rooms are still cold – or vice versa and the boiler/furnace runs pointlessly.

robOur home heating system sucks!