Welcome to my projects web site and blog. I'm a hacker, not just a hacker of software, but also a hacker of hardware too. I majored in physics and have some training in electronics but I am mostly self taught. This doesn't stop me having ago at electronics design and frabrication. Below is a list of my projects and a little bit about each one. New projects will appear at the top. Enjoy ...
This is an attempt to develop an ethernet interface for a BBC Microcomputer. The interface is based around the WIZ812MJ part which itself is based on the W5100 chip. The chip is an ethernet adapter micrcontroller which includes an embedded TCP/IP stack. The board is access via bit-banged SPI on the BBC's parallel port. The board also includes power regulation, address decoding, a socket for one of Microchip's SPI EEPROMs and expansion connections (the SPI bus together with power and to address lines).
See the Beebthernet page for more details.
I make beaded jewelery using tradition materials (mainly glass beads from my favourite bead shop, YumYum Beads). One day I was soldering up an electronics project and I thought it would be great to make earrings out of electronic components as they look neat. Then I wondered if I could actually make earrings that did something. After some experimentation I chose a circuit and then worked out how to turn this in to wearable jewelery. I wanted the PCB to be aestheticly pleasing as well as functional. This required me to learn circuit board design and surface mount soldering. The earrings produce a light pattern on the RGB LED which changes with the ambient light intensity. They aren't perfect but I'm pleased with what I developed.
See the Programmable Earrings page for more details.
Vivarium Temperature Monitor
I keep snakes. I was looking to get a new python and I had a vivarium that I thought might be suitable for a young python but wasn't sure whether its heating system would keep the temperature at a level which would be suitable. So using prototyping parts I put together a web enabled vivarium temperature monitor.
See the Vivarium Temperature Monitor page for more details.