30 Mar 2015

Protek 608 multimeter overview

Protek 608 multimeter

The Protek 608 is a 5000 count digital multimeter made by Hung Chang, who have since changed their name to GS Instruments. I’ve owned one of these since about 2009. This multimeter is now discontinued and no longer available new, although they occasionally show up on the second-hand market from forums and eBay. This DMM […]

26 Mar 2012

Home-made GPS and compass update

GPS and compass project - Breadboard prototype

After posting my project I had a number of questions online. I thought this is a good opportunity to update the blog to share more information on this project. GUI concepts I’ve made some more progress on the software side of things, mostly just playing around with the graphics display. The Nokia 3310 LCD screen […]

21 Mar 2012

Home-made GPS and compass

GPS and compass project - Breadboard prototype

This is a project I started about a week or so ago and have been working on when I find time after work. It’s a GPS and compass that temporarily uses an Arduino Nano micro-controller, Nokia 3310 screen, EM-406A SiRF III GPS receiver, and a simple (non-tilt compensated) magnetometer for compass heading. It’s obviously in […]

10 Nov 2008

Lowboy arcade cabinet modifications

Lowboy arcade cabinet - Joystick height comparison

The lowboy arcade cabinet design, as the name suggests, is a relatively small cabinet that was common in Australia during the 90s. I remember these being more popular in corner stores than video game arcades. They were a cheap and compact alternative to the standard larger cabinets and could easily be converted to play different […]