Below are some challenging projects I have developed over the years. With hindsight, there is room for improvement on some of them, but they are still all functioning well after over a decade of use.
Some use PICs and I can supply the required HEX file on request.
CNC PCB DRILL
This is a CNC PCB drill made from meccano and printer patrs.
DOT MATRIX DISPLAY
A 32x7 dot matrix messaging display controlled via serial port with programmable messages.
FREQUENCY METER
No PICs in this! A frequency meter/counter/timer using only CMOS 4000 ICs and crystal.
GIANT LED METER
A giant modular LED meter for sound which can be expanded repeatedly. Last count 1260 LEDs.
GIANT SIMON GAME
This is a wall mounted giant Simon game from the 70's, with scrolling messages and tunes.
SERIAL/DMX CONVERTER
This unit generates DMX signals for lighting using a PC with a serial RS232 output.
SERIAL PORT READER
A simple serial port reader in Hex, decimal or ASCII for testing projects with RS232 serial coms.
STAGE LIGHT CONTROLLER
A 32 channel light controller for old analogue Zero88/Pulsar lighting systems, with PC control interface.
STAGE INTERCOM
Simple modular intercom system for stage production and more. Up to 10 stations so far connected.
SPEED TRAP
This Speed Trap measures RC cars through 2 light beams and displays the speed in m/s or scaled mph.
UV IC/EPROM ERASER
A timed UV light source for clearing old PICs and EPROMs
WORKSHOP PSU
A power supply with grunt! Split and variable voltages from 1.2 to 28 volts with up to 10A capability.