Recently in Projects Category

I have corrected numerous errors and formatting issues on one of my power consumption pages. The Custom View page allows you to display the power consumption over a defined period. These pages are optimised to display correctly on a iPhone. However they work well on most modern browsers. See the project entitled "Current Cost data published to iPhone using Perl, RRDTool and iWebKit" on my projects page for a complete description of how the pages are created.

I have been using a Waterrower rowing machine for quite a number of years. However I wanted to record the data from the S4 monitor automatically. I could not find an application to do this that ran on a Apple Mac. So I set myself a small challenge to learn the programming language Perl to record the data in a database.

In January 2010 I started a small project to create a network attached temperature probe. This project made use of an Arduino micro controller and and Ethernet shield. The Arduino is loaded with the MQ Telemetry (MQTT) client which in turn sends messages to a Really Small Message Broker (RSMB). A simple Perl CGI web page then subscribes to topics published by the RSMB.  The whole is system is embarrassingly crude, but it does work. I am certainly no programmer, and yet I am pleased with the result.

During the early part of 2009 I created some Apple iPhone optimised web pages to show the output of a Current Cost power consumption meter. I used some simple Perl code, RRDTool and iWebKit to create the pages. Here is an article (PDF) describing how the project was created.  The actual web pages are here.