Electronics

Servicing a Chamsys PC Wing
After months of searching I managed to purchase a used Chamsys PC Wing from eBay at a good price. Described as “owned from new by a nightclub venue” and “cosmetically very poor” it was sold as not working.
David Cannings
Aug 26, 2024 3 min read Electronics
Logic Friday

Today I wanted to quickly calculate a truth table for a simple boolean equation. Whilst this can be done very simply on paper it becomes tedious with lots of inputs.

A quick Google search found “Logic Friday”, available at sontrak.com. Boolean operations can be described using logic gates, truth tables or an equation.

David Cannings
Jan 25, 2014 1 min read Computing, Electronics
Kart Timing Mk1
A basic kart timing system, built from scratch
Kart Timing Mk1
PCB0001 - 18F breakout
A PIC 18F breakout board, suitable for prototyping
PCB0001 - 18F breakout
PCB0003 - Breadboard supply
A 5v / 3.3v breadboard power supply circuit
PCB0003 - Breadboard supply
PCB0006 - RFM12 breakout
A breakout for the popular RFM12 radio module
PCB0006 - RFM12 breakout
The ST7565 display controller
I have moved the contents of this post to a permanent page, available at this page.
David Cannings
Feb 5, 2012 1 min read Electronics
PCB0002 - LED matrix
A simple 8x8 LED matrix, with a cute ghost :)
PCB0002 - LED matrix
Cooking with gas, my first SMD board

My first bunch of boards arrived back from BatchPCB and I’m really impressed.  Great printing for the silkscreen and a really professional looking product.  One of the boards I ordered was a breakout board for the SMD PIC 18F2321, the first surface mount board I have tried.
David Cannings
May 10, 2010 3 min read Electronics
Eagle library
Some useful components for Cadsoft Eagle
Eagle library