PCB's are included showing track layouts the correct size ready for photocopying onto acetate for PCB photo-etch production. Some projects have kits and PCB's available if you do not have photo-etching facilities.

If you have any problems with these, email us and we shall do our best to help.

• Please read Hints & Tips page before you begin constructing any PCB.
• If you download any PCB diagrams, do not resize them. They have been reproduced to scale so any resizing will cause some components not to fit your board. Always check components like IC's and presets against PCB track printouts to ensure they have be reproduced to the correct size.

This memory game very similar to others but MUCH BETTER. All the features of the original 70's toy and more - for those that remember it!!
Note: Requires a ptogrammed PIC - available from our shop.

A 2 digit electronic dice with sound. Shake the die to roll some numbers from 1 to 6.
Note: Requires a ptogrammed PIC - available from our shop.

A simple timed alarm based on a 555 monostable and activated by a vibration switch. The siren used is very loud indeed reaching 110dB!!

A basic metronome with adjustable tempo from around 50 beats to 240 beats per minute. The pitch and duration of the tone can be adjusted to produce a variety of sounds.

A light operated circuit that sounds an alarm for an adjustable period of time when the fridge door is opened. Ensures the door stays closed and also good for food junkies!!

A compact little circuit with alarm duration control and sensitivity adjustment. Good for single rooms and small buildings. Requires oscilloscope or voltmeter to set up.

A simple device to count the number of times medication has been taken. Press the button to activate display. Counter resets after 24 hours. Note: Requires a PIC programmer. (Pre-programmed PIC available)

A 4digit lap timer counting in 1/100's of a second. Times alternate laps and auto resets.

A parking aid that relies on a car moving over a pressure pad that displays a warning to the driver. Circuit fetaures automatic power management.

A snooker scoreboard that has count up/down and reset. The project shown uses 2 identical circuits for each display. Note: Requires a PIC programmer. (Pre-programmed PIC available)

A guitar tuner with 3 LED display to indicate Flat - OK - Sharp. Tunes to middle A - 440Hz. Note: Requires a PIC programmer. (Pre-programmed PIC available)

A discrete sentry circuit that will count the number of people walking past but only display it when a button is pressed. Good for guarding bedrooms.

A neat circuit that allows timing from 5-55 minutes in 5 minute intervals. A dual 7-segment display indicates time left. Note: Requires a PIC programmer. (Pre-programmed PIC available)

This metronome includes selection of 2,4,6,8 and10 beats to the bar. An audible emphasis and LED indicate the first beat, and a second LED for the rest. Tempo and pitch also adjustable.

This is a variation of an old game. Climb the rope while the light is on, if it's off when the button's pressed, fall to the bottom. Has variable difficulty settings and sound.

This roulette wheel in a briefcase has 37 LED's that flash in sequence while the 'spin' button is pressed and slow down gradually to a stop when released. Note: there is some complex wiring to connect up in this project.

A speedometer that can measure up to 11 or 22m/s (45mph) on an LED display. Uses spoke magnets and a reed switch. Requires a PIC micro-controller.

A simple alarm that uses a PIR to detect people. An interesting case design for this one.

An intercom with call facility, in the shape of a burger!