Construction Projects (Organized by Category)
(Also visit the Organized by Issue page)

PIC-Based | Beginner/Starter | Auto | Remote Control | Alarm/Warning | Robotic/Microprocessor Radio/Wireless | Video/TV | Test Equipment | MIDI/Music/Audio | Novel/Unusual | Miscellaneous

PIC World Clock: Graphically displays world map, calendar, clock and global time-zone data (August 2002 -- Buy this issue NOW!).

EPE StyloPIC: Have fun with a modern interpretation of a classic musical instrument (July 2002 -- Buy this issue NOW!).

BIOPIC Heartbeat Monitor: Take a peek at the rhythmic waveforms that keep you ticking (June 2002 -- Buy this issue NOW!)

Freezer Alarm: How to prevent your food from defrosting unexpectedly (May 2002 -- Buy this issue NOW!)

PIC Big-Digit Display: Control the giant ex-British Rail platform clock 7-segment digits that are now available on the surplus market (May 2002 -- Buy this issue NOW!)

PIC-Controller Intruder Alarm: A sophisticated multi-zone intruder detection system that offers deluxe monitoring facilities (April 2002 -- Buy this issue NOW!)

PIC Virus Zapper: Can disease be cured electronically? Investigate this controversial subject for yourself (March  2002 -- Buy this issue NOW!)

PIC Mini-Enigma: Share encrypted messages with your friends -- true spymaster entertainment (March  2002 -- Buy this issue NOW!)

PIC Spectrum Analyzer: PIC-controlled PC interface for analyzing analog waveforms and displaying their harmonic content (February 2002 -- Buy this issue NOW!)

PIC Magick Musick: Conjure music from thin air at the mere untouching gesture of a fingertip (January 2002 -- Buy this issue NOW!)

PIC Polywhatsit: A novel compendium of musical effects to delight the creative musician (December 2001 -- Buy this issue NOW!)

PIC Toolkit Mk3: By popular demand - an enhanced PIC microcontroller programming development board (October 2001 -- Buy this issue NOW!)

Water Monitor: How costly is it to keep your garden watered? Find out and control it (September 2001 -- Buy this issue NOW!)

Digitimer: Enhance your ease of viewing - build an add-on VCR record timer unit for Sky TV (August 2001 -- Buy this issue NOW!)

PIC to Printer Interface: How to use dot-matrix printers as data loggers with PIC microcontrollers (July 2001 -- Buy this issue NOW!)

PIC Graphics LCD Scope: Long awaited, a PIC and graphics LCD signal monitor for your workshop (May 2001 -- Buy this issue NOW!)

Special Supplement: "How to use graphics liquid crystal displays (LCDs) with PICS" This step-by-step guide to understanding and using pixel-matrixed graphics LCDs with your PIC microcontroller projects is available for FREE from the EPE Online Library.

PIC-Monitored Dual PSU: Workshop power supply with multiple options and monitoring of voltage and current using a PIC microcontroller plus LCD readout (December 2000 and January 2001 -- Buy these issues NOW!)

PIC Pulsometer: Accurately measures and displays timings, frequency, and capacitance (November 2000 -- Buy this issue NOW!)

PIC-based Dual-Channel Virtual Oscilloscope: A virtual oscilloscope interface for monitoring audio frequency signals via your computer (October 2000 -- Buy this issue NOW!)

PIC-based Remote Control IR Decoder: Allows PIC programming enthusiasts to remotely control their designs (September 2000 -- Buy this issue NOW!)

EPE Moodloop: Have a relaxing "field-day" (or night) with our latest PIC-based brainwave generator (August 2000 -- Buy this issue NOW!)

PIC-Gen frequency generator/counter: Expand your test capability with this versatile PIC-based test equipment (July 2000 -- Buy this issue NOW!)

PIC-based Canute Tide Predictor: A simple PIC-based tide calculator for paddlers, dabblers, and kings of the sand castle (June 2000 -- Buy this issue NOW!)

Multi-Channel Transmission System: An 8 to 16-channel 2-wire PIC-based signaling link with optional interface for private phone systems (May 2000 -- Buy this issue NOW!)

Micro PICscope: There's plenty of scope for this ingenious piece of portable test gear (April 2000 -- Buy this issue NOW!)

EPE ICEbreaker: Real-time PIC In-Circuit Emulator (ICE), programmer, debugger, and development system (March 2000 -- Buy this issue NOW!)

PIC Video Cleaner: Improving video viewing on poorly maintained TVs and VCRs (February 2000 -- Buy this issue NOW!)

PIC Micro-Probe: A hardware tool to help debug your PIC software (December 1999 -- Buy this issue NOW!)

Ginormous Stopwatch - Part 2: These PIC-controlled giant display digits can be used with the Stopwatch from last month, or driven by your serial port (December 1999 -- Buy this issue NOW!)

Ginormous Stopwatch - Part 1: PIC-based events timer with in-built LCD and radio-controlled gating (November 1999 -- Buy this issue NOW!)

Interior Lamp Delay: Don't you just hate being plunged into darkness when the car door shuts? Here's a solution! Plus lights on alarm and battery saver (Oct 1999 -- Buy this issue NOW!)

8-Channel Analog Data Logger: The new PIC16F877 microcontroller offers versatile logging opportunities (August and September 1999 -- Buy these issues NOW!)

PIC Toolkit Mk2: Expanding Toolkit MK1 to include the PICF87x devices as well as the familiar 'x84s, plus many more features, including detailed discussions of the many software options offered by this sophisticated PIC programmer  (May and June 1999 -- Buy these issues NOW!)

PIC-based MIDI Handbells: Ring out thy bells will merry tolling -- plus a MIDI PIC-up, of course! (May 1999 -- Buy this issue NOW!)

EPE Mood PICker: Oh for a good night's sleep! Insomniacs rejoice -- your wakeful nights could soon be over with this mini-micro under the pillow! (July 1999 -- Buy this issue NOW!)

Musical Sundial: When the sun has got his hat off (hip-hip-hip-hooray) there's no shadow of doubt you'll find fun with our PIC-based musical garden gnomon! (June 1999 -- Buy this issue NOW!)

Versatile Event Counter: Counting and timing music beats, rowing rates, clock ticks, and much, much more! (April 1999 -- Buy this issue NOW!)

Time and Date Generator: Add time and date codes to your CCTV security monitor (March 1999 -- Buy this issue NOW!)

Wireless Monitoring System: Low-cost radio-linked short-range data-logging is now readily and simply available with this PIC-based solution (February & March 1999 -- Buy these issues NOW!)

PIC MIDI Sustain Pedal: Add sustain and glissando to your MIDI line-up with this inexpensive PIC-controlled effects unit (February 1999 -- Buy this issue NOW!)

EPE Mind PICkler: Want seven ways to relax? Try our PIC-controlled mind machine! (December 1998 & January 1999 -- Buy these issues NOW!)

Fading Christmas Lights: How Seasonal! How Festive! But How Different! (December 1998 -- Buy this issue NOW!)

PIC-Based Ultrasonic Tape Measure: You've got it taped if you PIC this ultrasonic distance measuring calculator (November 1998 -- Buy this issue NOW!)

Perpetual Projects - Part 3 - Loop Alarm, Touch Switch, Rain Alarm: Three more solar-powered projects - Loop Burglar Alarm, Touch-Switch Door-Light, Solar-Powered Rain Alarm - plus seven suggestions for variants (September 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 2 - LED Flasher and Double-Doorbuzzer: Two more perpetual projects for which you can be "eternally" grateful! (August 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 1 - Solar-Powered Power Supply and Voltage Regulator: Free power for your projects! The first in a new series (July 2001 -- Buy this issue NOW!)

In-Circuit Ohmmeter: Our final Top-Tenner ("Beginners") project enables you to measure in-circuit resistance (June 2001 -- Buy this issue NOW!)

Dummy PIR Detector: An extremely inexpensive way to fool would-be intruders (June 2001 -- Buy this issue NOW!) 

DC Motor Controller: Simply and inexpensively control low-voltage motors or lamps with this month's "Top Tenner" (beginner's) project (May 2001 -- Buy this issue NOW!)

Sound Trigger: Using a sound trigger/switch to soundly lighten your darkness (April 2001 -- Buy this issue NOW!)

Wave Sound Effect: Let the susurration of the waves soothe intrusions on your senses (April 2001 -- Buy this issue NOW!)

Circuit Tester: Simply check for open and short circuits with another "Top-Tenner" project (March 2001 -- Buy this issue NOW!)

Simple Metronome: Have a good musical time with another "Top Tenner" beginner's project (February 2001 -- Buy this issue NOW!)

Versatile Optical Trigger: A "Top Tenner" (beginner) project for light-controlling electrical equipment (January 2001 -- Buy this issue NOW!)

Static Field Detector: An amusing "electroscope" starter project that reveals if your friends are "highly charged" (December 2000 -- Buy this issue NOW!)

Sample-and-Hold: a Top-Tenner add-on unit for your multimeter (November 2000 -- Buy this issue NOW!)

Fridge/Freezer Alarm: Another "Top-Tenner" project -- audibly warns of imminent money loss! (October 2000 -- Buy this issue NOW!)

Steeplechase Game: Another "Top Tenner" design -- how well can your horse jump the fences? (September 2000 -- Buy this issue NOW!)

Quiz Game Indicator: A low-cost fun project that cannot be questioned (August 2000 -- Buy this issue NOW!)

Camera Shutter Timer: Make sure that you get the right exposure with this simple starter design (July 2000 -- Buy this issue NOW!)

Automatic Nightlight: A simple starter project to lighten the darkness for the young and the frail (June 2000 -- Buy this issue NOW!)

Low-Cost Capacitance Meter: An easy-to-build starter project that adds a useful tool to your workshop (May 2000 -- Buy this issue NOW!)

Flash Slave: Make a striking image with this Starter Project (April 2000 -- Buy this issue NOW!)

Automatic Train Signal: This easy-to-build low-cost starter project is for model railways (March 2000 -- Buy this issue NOW!)

Voltage Monitor: This month's starter project illuminates your battery's condition (February 2000 -- Buy this issue NOW!)

Flashing Snowman: Add a "sparkle" to your festive decorations with this fun starter project! (January 2000 -- Buy this issue NOW!)

Magnetic Field Detector: Where's the attraction? Find out with out Starter Project! (December 1999 -- Buy this issue NOW!)

Acoustic Probe: An audio "telescope" or "stethoscope/microscope" to investigate distant or low-level sounds (November 1999 -- Buy this issue NOW!)

Mains Cable Detector: This simple Starter Project detects mains cables by sensing their "hum" (October 1999 -- Buy this issue NOW!)

Loop Aerial Short Wave Receiver: Discover the thrill of making your own radio with this simple Starter Project! (September 1999 -- Buy this issue NOW!)

Sound Activated Switch: Just one logic gate allows a simple mic to control - well almost anything! (August 1999 -- Buy this issue NOW!)

LED Stroboscope: Another low-cost starter project -- how to "freeze" the motion of small machines (July 1999 -- Buy this issue NOW!)

Clipping Video Fader: The first in a new series of Starter Projects -- add a simple fading facility to your camcorder/TV link (June 1999 -- Buy this issue NOW!)

Ice Alert: Tri-color LED warns motorists and gardeners of impending frost danger (February 2001 -- Buy this issue NOW!)

Motorists' Buzz-Box A multipurpose piece of test equipment for the intrepid car owner (December 2000 -- Buy this issue NOW!)

Garage Link: An open and shut case for a 418MHz Transmitter/Receiver link (April 2000 -- Buy this issue NOW!)

Parking Warning System: Avoid having an unwanted rear entrance to your garage (March 2000 -- Buy this issue NOW!)

Vehicle Frost Box: Helps to predict the presence of black ice (January 2000 -- Buy this issue NOW!)

Demister One-Shot: Save car battery use and fuel consumption by minimizing rear-screen power-on times (November 1999 -- Buy this issue NOW!)

Interior Lamp Delay: Don't you just hate being plunged into darkness when the car door shuts? Here's a solution! Plus lights on alarm and battery saver (Oct 1999 -- Buy this issue NOW!)

12V Battery tester: Give a probing health check to your lead-acid batteries (July 1999 -- Buy this issue NOW!)

Alternative Courtesy Light Controller: Motorists - lighten the depth of darkness in your garage or driveway   (January 1999 -- Buy this issue NOW!)

Pitch Switch: A novel sound-operated switch with precise frequency response (November 2001 -- Buy this issue NOW!)

Doorbell Extender: Through-the-mains controller links your doorbell and garage or workshop, plus remote appliance switching (March 2001 -- Buy this issue NOW!)

AM/FM Radio Remote Control: Coded radio remote control has become straightforward and requires no UK licence (May 1999 -- Buy this issue NOW!)

Reliable Infrared Remote Control: It has now become easy to build reliable IR systems -- heres a selection of constructional articles to prove it! (November & December 1998 -- Buy these issues NOW!)

Freezer Alarm: How to prevent your food from defrosting unexpectedly (May 2002 -- Buy this issue NOW!)

Washing Ready Indicator: Has the washing machine finished? - Avoid those washday blues (May 2002 -- Buy this issue NOW!)

PIC-Controller Intruder Alarm: A sophisticated multi-zone intruder detection system that offers deluxe monitoring facilities (April 2002 -- Buy this issue NOW!)

Versatile Current Monitor: Monitors equipment current flow and warns if it changes significantly (February 2002 -- Buy this issue NOW!)

Mains Failure Alarm: Protect your freezer or fish tank contents, or monitor mains connections (December 2001 -- Buy this issue NOW!)

Lights Needed Alert: Ensure your car can be seen when driven in poor lighting conditions (November 2001 -- Buy this issue NOW!)

Dummy PIR Detector: An extremely inexpensive way to fool would-be intruders (June 2001 -- Buy this issue NOW!) 

Intruder Alarm Control Panel: 5-zone micro- controlled security system designed to meet British Standards specification BS4737 (April 2001 -- Buy this issue NOW!)

Sound Trigger: Using a sound trigger/switch to soundly lighten your darkness (April 2001 -- Buy this issue NOW!)

Body Detector: Create your own "invisible shield" and let the force be with you! (March 2001 -- Buy this issue NOW!)

Ice Alert: Tri-color LED warns motorists and gardeners of impending frost danger (February 2001 -- Buy this issue NOW!)

Opto-Alarm System: Keep would-be intruders at bay with this portable, optically balanced security alarm (November 2000 -- Buy this issue NOW!)

Fridge/Freezer Alarm: Another "Top-Tenner" project -- audibly warns of imminent money loss! (October 2000 -- Buy this issue NOW!)

Door Protector: The first in a series of "Top-Tenner" projects, featuring simple designs that can be built for around 10 UK pounds (16 US dollars) (August 2000 -- Buy this issue NOW!)

PIR Light-Checker: Be trigger happy with your outdoor security light system (May 2000 -- Buy this issue NOW!)

Garage Link: An open and shut case for a 418MHz Transmitter/Receiver link (April 2000 -- Buy this issue NOW!)

Parking Warning System: Avoid having an unwanted rear entrance to your garage (March 2000 -- Buy this issue NOW!)

Versatile Burglar Alarm: Simple, extendable, and easy-to-use indoor security monitoring (January 2000 -- Buy this issue NOW!)

Loft Guard: A lofty way to keep your power bills low and extend the life of your light bulbs (December 1999 -- Buy this issue NOW!)

Vibralarm: Multi-purpose vibration-triggered alarm with remarkable sensitivity (November 1999 -- Buy this issue NOW!)

Child Guard: Helping to protect your loved ones, an audible warning sounds if children (or others) approach a fire (September 1999 -- Buy this issue NOW!)

Freezer Alarm: Another low-cost starter project - Howe to avoid an expensive thaw! (August 1999 -- Buy this issue NOW!)

Intruder Deterrent: Is there anyone at home?  Would-be intruders may never be sure if the lights keep switching (July 1999 -- Buy this issue NOW!)

Light Alarm: Looking for undercover protection? Try this simple light-activated alarm! (February 1999 -- Buy this issue NOW!)

Manual Stepper Motor Controller: Illustrates how a 4-phase stepper motor can be controlled bi-directionally using a conventional rotary switch (April 2002 -- Buy this issue NOW!)

PhizzyB Computers Part 7: "Mom, it's making eyes at me!" The PhizzyBot now has vision ... here's how ... (May 1999 -- Buy this issue NOW!)

PhizzyB Computers Part 6: Adding microswitches to the PhizzyBot and creating collision detection and response routines (April 1999 -- Buy this issue NOW!)

PhizzyB Computers Part 5: Constructing the motorized platform and DC motor controller output device for a simple robot called the PhizzyBot (March 1999 -- Buy this issue NOW!)

PhizzyB Computers Part 4: In which we build polled and interrupt-driven input switch devices and investigate interrupts and interrupt service routines (February 1999 -- Buy this issue NOW!)

PhizzyB Computers Part 3: In which we construct a liquid crystal display (LCD) output module, and also learn about the stack and subroutines (January 1999 -- Buy this issue NOW!)

PhizzyB Computers Part 2: Here we construct two simple input and output devices and use them to test the PhizzyB's external input/output ports (December 1998 -- Buy this issue NOW!)

PhizzyB Computers Part 1: Introducing a new series on understanding computers, featuring the PhizzyB and PhizzyB Simulator (November 1998 -- Buy this issue NOW!)

HT Power Supply: Power your favorite antique valve radio! (February 2002 -- Buy this issue NOW!)

2-Valve Shortwave Radio: Designed for valve (vacuum tube) radio enthusiasts, or anyone who would like to try the nostalgic approach to shortwave listening (October 2001 -- Buy this issue NOW!)

Compact Shortwave Loop Aerial: This Q-multiplied loop amplifies signals and nulls out electrical interference. Four plug-in loops covering 1.5MHz to 30MHz (August 2001 -- Buy this issue NOW!)

MSF Signal Repeater and Indicator: How to receive MSF radio clock signals in a shielded building (July 2001 -- Buy this issue NOW!)

Active Ferrite Loop Aerial: Superbly designed vertically and horizontally rotating reception optimizer (September 2000 -- Buy this issue NOW!)

Garage Link: An open and shut case for a 418MHz Transmitter/Receiver link (April 2000 -- Buy this issue NOW!)

High-Performance Regenerative Receiver: A beautifully designed receiver covering 130kHz to 30MHz global broadcast and amateur bands (March and April 2000 -- Buy these issues NOW!)

Loop Aerial Short Wave Receiver: Discover the thrill of making your own radio with this simple Starter Project! (September 1999 -- Buy this issue NOW!)

AM/FM Radio Remote Control: Coded radio remote control has become straightforward and requires no UK licence (May 1999 -- Buy this issue NOW!)

Mechanical Radio: Wrist power provides a renewable radio energy source (April 1999 -- Buy this issue NOW!)

Wireless Monitoring System: Low-cost radio-linked short-range data-logging is now readily and simply available with this PIC-based solution (February & March 1999 -- Buy these issues NOW!)

Camcorder Mixer: Enhance the sound of your home video productions (May 2001 -- Buy this issue NOW!)

PIC Video Cleaner: Improving video viewing on poorly maintained TVs and VCRs (February 2000 -- Buy this issue NOW!)

Clipping Video Fader: The first in a new series of Starter Projects -- add a simple fading facility to your camcorder/TV link (June 1999 -- Buy this issue NOW!)

Time and Date Generator: Add time and date codes to your CCTV security monitor (March 1999 -- Buy this issue NOW!)

TV Volume Compressor: Taking a level approach to cracking the TV adverts sound barrier  (January 1999 -- Buy this issue NOW!)

RH Meter: How healthy is the moisture content in your home? By monitoring its relative Humidity you can then take steps to control it (March 2002 -- Buy this issue NOW!)

Versatile Current Monitor: Monitors equipment current flow and warns if it changes significantly (February 2002 -- Buy this issue NOW!)

PIC Spectrum Analyzer: PIC-controlled PC interface for analyzing analog waveforms and displaying their harmonic content (February 2002 -- Buy this issue NOW!)

Versatile Bench Power Supply: A well-proven power supply that provides 0V to 20V with current limiting in two ranges of 100mA and 1A (January 2002 -- Buy this issue NOW!)

Capacitance Meter: Allows any capacitor type to have it's true value readily measured (November 2001 -- Buy this issue NOW!)

Teach-In 2002 Power Supply: Supplies +/-12V and +5V at 600mA (November 2001 -- Buy this issue NOW!)

In-Circuit Ohmmeter: Our final Top-Tenner ("Beginners") project enables you to measure in-circuit resistance (June 2001 -- Buy this issue NOW!)

PIC Graphics LCD Scope: Long awaited, a PIC and graphics LCD signal monitor for your workshop (May 2001 -- Buy this issue NOW!)

Circuit Tester: Simply check for open and short circuits with another "Top-Tenner" project (March 2001 -- Buy this issue NOW!)

PC Audio Power Meter: Measure audio amplifier power output via your PC computer (February 2001 -- Buy this issue NOW!)

PIC-Monitored Dual PSU: Workshop power supply with multiple options and monitoring of voltage and current using a PIC microcontroller plus LCD readout (December 2000 and January 2001 -- Buy these issues NOW!)

Motorists' Buzz-Box A multipurpose piece of test equipment for the intrepid car owner (December 2000 -- Buy this issue NOW!)

Sample-and-Hold: a Top-Tenner add-on unit for your multimeter (November 2000 -- Buy this issue NOW!)

PIC Pulsometer: Accurately measures and displays timings, frequency, and capacitance (November 2000 -- Buy this issue NOW!)

EPE Moodloop Field Strength Indicator: Check that your Moodloop's loop is working, and find the sources of 50HZ mains fields (October 2000 -- Buy this issue NOW!)

Handy Amp: A simple multi-purpose amplifier with built-in speaker and headphone output (August 2000 -- Buy this issue NOW!)

PIC-Gen frequency generator/counter: Expand your test capability with this versatile PIC-based test equipment (July 2000 -- Buy this issue NOW!)

Low-Cost Capacitance Meter: An easy-to-build starter project that adds a useful tool to your workshop (May 2000 -- Buy this issue NOW!)

Micro PICscope: There's plenty of scope for this ingenious piece of portable test gear (April 2000 -- Buy this issue NOW!)

Voltage Monitor: This month's starter project illuminates your battery's condition (February 2000 -- Buy this issue NOW!)

PC Audio Frequency Meter: Use your PC's bidirectional printer port to monitor frequencies up to 32kHz (June 1999 -- Buy this issue NOW!)

12V Battery tester: Give a probing health check to your lead-acid batteries (July 1999 -- Buy this issue NOW!)

Handheld Function Generator: Sine, triangle, and square wave signals always at hand, with almost full audio range coverage and output adjustability (December 1998 -- Buy this issue NOW!)

Simple Audio Circuits - Part 4 - Loudspeaker Enclosures, Tuning Oscillator and Resonance Detector: A compendium of useful audio circuits for the experimenting constructor (August 2002 -- Buy this issue NOW!)

Simple Audio Circuits - Part 3 - Power Supplies, Loutspeakers, Crossover Networks, and Filters: A compendium of useful audio amplifier circuits for the experimenting constructor (July 2002 -- Buy this issue NOW!)

Simple Audio Circuits - Part 2 - Preamps, Tone Controls, and Filters: A compendium of useful audio amplifier circuits for the experimenting constructor (June 2002 -- Buy this issue NOW!)

Simple Audio Circuits - Part 1 - Power Amplifiers: A compendium of useful audio amplifier circuits for the experimenting constructor (May 2002 -- Buy this issue NOW!)

Electric Guitar Tuner: Six fixed frequencies and an l.e.d. help you to stay in tune (April 2002 -- Buy this issue NOW!)

Guitar Practice Amp: A low-cost amplifier that will allow the budding guitarist to improve his/her playing technique, without annoying the household or neighbors! (February 2002 -- Buy this issue NOW!)

Stereo/Surround Sound Amplifier: An easy-to-build design whose effect, considering its inexpensive cost, is convincing! (July 2001 -- Buy this issue NOW!)

Camcorder Mixer: Enhance the sound of your home video productions (May 2001 -- Buy this issue NOW!)

Sound Trigger: Using a sound trigger/switch to soundly lighten your darkness (April 2001 -- Buy this issue NOW!)

Wave Sound Effect: Let the susurration of the waves soothe intrusions on your senses (April 2001 -- Buy this issue NOW!)

PC Audio Power Meter: Measure audio amplifier power output via your PC computer (February 2001 -- Buy this issue NOW!)

Simple Metronome: Have a good musical time with another "Top Tenner" beginner's project (February 2001 -- Buy this issue NOW!)

Two-Way Intercom: How to create your own local two-way chat zone (January 2001 -- Buy this issue NOW!)

Handy Amp: A simple multi-purpose amplifier with built-in speaker and headphone output (August 2000 -- Buy this issue NOW!)

Versatile Mic/Audio Preamplifier: The new SSM2166 chip offers AGC compression, limiting, and noise reduction (May 2000 -- Buy this issue NOW!)

Easy-Typist Tape Controller: Soundly helps copy-typists who can't type (February 2000 -- Buy this issue NOW!)

Scratch Blanker: Spin-doctoring for a better sound bite! Use this project to remove the "clicks" and "pops" from your old vinyl records (January 2000 -- Buy this issue NOW!)

QWL Loudspeaker System: Enjoy superb hi-fi sound at a fraction of the cost of an equivalent commercial speaker system! (October 1999 -- Buy this issue NOW!)

PIC-based MIDI Handbells: Ring out thy bells will merry tolling -- plus a MIDI PIC-up, of course! (May 1999 -- Buy this issue NOW!)

Voice Record & Playback Module: Less cuddly than a Firby, but more useful! (April 1999 -- Buy this issue NOW!)

PIC MIDI Sustain Pedal: Add sustain and glissando to your MIDI line-up with this inexpensive PIC-controlled effects unit (February 1999 -- Buy this issue NOW!)

World Lamp: Low cost lighting when there’s no mains supply available (June 2002 -- Buy this issue NOW!)

Solar Charge-and-Go: Use solar power to charge your 2·4V or 3·4V NiCad and nickel metal hydride mobile phone batteries (April 2002 -- Buy this issue NOW!)

Forever Flasher: A novel flashing LED that could run for over 20 years on a 9V lithium battery or "forever" using the "free energy" from a TV aerial or similar (January 2002 -- Buy this issue NOW!)

Ghost Buster: Spooky feelings all around you? Track down their source! (December 2001 -- Buy this issue NOW!)

Pitch Switch: A novel sound-operated switch with precise frequency response (November 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 4: Three more solar-powered projects - Gate Sentinel, Bird Scarer, and In-Out Register (October 2001 -- Buy this issue NOW!)

LED Super Torches (Flashlights): Two high-tech (one super-high-tech) designs to brighten your nights (September 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 3 - Loop Alarm, Touch Switch, Rain Alarm: Three more solar-powered projects - Loop Burglar Alarm, Touch-Switch Door-Light, Solar-Powered Rain Alarm - plus seven suggestions for variants (September 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 2 - LED Flasher and Double-Doorbuzzer: Two more perpetual projects for which you can be "eternally" grateful! (August 2001 -- Buy this issue NOW!)

Perpetual Projects - Part 1 - Solar-Powered Power Supply and Voltage Regulator: Free power for your projects! The first in a new series (July 2001 -- Buy this issue NOW!)

EPE Snug-Bug: Treat your tropical pets to a personalized 4-channel central heating system (April 2001 -- Buy this issue NOW!)

DIY Tesla Lightning: Build a giant Tesla Coil and challenge Zeus at creating lightning! (March 2001 -- Buy this issue NOW!)

Body Detector: Create your own "invisible shield" and let the force be with you! (March 2001 -- Buy this issue NOW!)

UFO Detector and Event Recorder: Charting the X-files revolution (January 2001 -- Buy this issue NOW!)

Static Field Detector: An amusing "electroscope" starter project that reveals if your friends are "highly charged" (December 2000 -- Buy this issue NOW!)

Handclap Switch: Let there be light -- quick as the clappers (November 2000 -- Buy this issue NOW!)

Wind-Up Torch/Flashlight: An occasional twist of a knob provides light without battery power (October 2000 -- Buy this issue NOW!)

g-Meter: Use a space-age chip to measure g-forces (July 2000 -- Buy this issue NOW!)

Atmospheric Electricity Generator: Investigate Nature's power-house with this intriguing experimental design (June and July 2000 -- Buy this issue NOW!)

PIC-based Canute Tide Predictor: A simple PIC-based tide calculator for paddlers, dabblers, and kings of the sand castle (June 2000 -- Buy this issue NOW!)

Musical Sundial: When the sun has got his hat off (hip-hip-hip-hooray) there's no shadow of doubt you'll find fun with our PIC-based musical garden gnomon! (June 1999 -- Buy this issue NOW!)

Ultrasonic Puncture Finder: Find that elusive puncture speedily and without water! (August 1999 -- Buy this issue NOW!)

Mechanical Radio: Wrist power provides a renewable radio energy source (April 1999 -- Buy this issue NOW!)

Infrared Autoswitch: Keeps work-surface lights turned on only while you are near them (July 2002 -- Buy this issue NOW!)

World Lamp: Low cost lighting when there’s no mains supply available (June 2002 -- Buy this issue NOW!)

Washing Ready Indicator: Has the washing machine finished? - Avoid those washday blues (May 2002 -- Buy this issue NOW!)

Manual Stepper Motor Controller: Illustrates how a 4-phase stepper motor can be controlled bi-directionally using a conventional rotary switch (April 2002 -- Buy this issue NOW!)

RH Meter: How healthy is the moisture content in your home? By monitoring its relative Humidity you can then take steps to control it (March 2002 -- Buy this issue NOW!)

Time Delay Touch Switch: Automatically turns off lights after a preset period (January 2002 -- Buy this issue NOW!)

Twinkling Lights: A beautiful four-channel lighting effect for your Christmas tree or festive party (December 2001 -- Buy this issue NOW!)

Pitch Switch: A novel sound-operated switch with precise frequency response (November 2001 -- Buy this issue NOW!)

Synchronous Clock Driver: By popular request - a dual-frequency 50Hz/60Hz converter for mains-operated synchronous clocks (September 2001 -- Buy this issue NOW!)

LED Super Torches (Flashlights): Two high-tech (one super-high-tech) designs to brighten your nights (September 2001 -- Buy this issue NOW!)

Lead-acid battery charger: Keep your 6V and 12V batteries in a properly charged condition (August 2001 -- Buy this issue NOW!)

Hosepipe Controller: How to avoid wasting money when watering your garden (June 2001 -- Buy this issue NOW!)

Magfield Monitor: A sophisticated fluxgate sensor monitors static and alternating magnetic fields and outputs processed signals to a meter and headphones (June 2001 -- Buy this issue NOW!)

EPE Snug-Bug: Treat your tropical pets to a personalized 4-channel central heating system (April 2001 -- Buy this issue NOW!)

Doorbell Extender: Through-the-mains controller links your doorbell and garage or workshop, plus remote appliance switching (March 2001 -- Buy this issue NOW!)

Two-Way Intercom: How to create your own local two-way chat zone (January 2001 -- Buy this issue NOW!)

Handclap Switch: Let there be light -- quick as the clappers (November 2000 -- Buy this issue NOW!)

EPE Moodloop Field Strength Indicator: Check that your Moodloop's loop is working, and find the sources of 50HZ mains fields (October 2000 -- Buy this issue NOW!)

EPE Moodloop Power Supply: Stably power your Moodloop (see August 2000 projects) and other 13.2V or 12V 1A designs (September 2000 -- Buy this issue NOW!)

Quiz Game Indicator: A low-cost fun project that cannot be questioned (August 2000 -- Buy this issue NOW!)

PIR Light-Checker: Be trigger happy with your outdoor security light system (May 2000 -- Buy this issue NOW!)

Find It -- Don't Lose It: Offering the key to enlightened location finding (February 2000 -- Buy this issue NOW!)

Easy-Typist Tape Controller: Soundly helps copy-typists who can't type (February 2000 -- Buy this issue NOW!)

Scratch Blanker: Spin-doctoring for a better sound bite! Use this project to remove the "clicks" and "pops" from your old vinyl records (January 2000 -- Buy this issue NOW!)

Demister One-Shot: Save car battery use and fuel consumption by minimizing rear-screen power-on times (November 1999 -- Buy this issue NOW!)

Mains Cable Detector: This simple Starter Project detects mains cables by sensing their "hum" (October 1999 -- Buy this issue NOW!)

QWL Loudspeaker System: Enjoy superb hi-fi sound at a fraction of the cost of an equivalent commercial speaker system! (October 1999 -- Buy this issue NOW!)

+/- 5V Micro Power Supply: Supplies a well-regulated +/-5V, even if your battery's nearly flat! (October 1999 -- Buy this issue NOW!)

Variable Dual Power Supply: Fully variable from +/-3V to +/-15V up to 500mA, and short-circuit proof (September 1999 -- Buy this issue NOW!)

Ultrasonic Puncture Finder: Find that elusive puncture speedily and without water! (August 1999 -- Buy this issue NOW!)

Magnetic Field Detector: A neat and sensitive instrument for detecting low-level magnetic fields (August 1999 -- Buy this issue NOW!)

12V Battery tester: Give a probing health check to your lead-acid batteries (July 1999 -- Buy this issue NOW!)

Voice Record & Playback Module: Less cuddly than a Firby, but more useful! (April 1999 -- Buy this issue NOW!)

Ironing Board Saver: Save energy with this safety add-on (April 1999 -- Buy this issue NOW!)

Smoke Absorber: You don't want to inhale solder fumes do you? Help avoid them with our neat little heat-triggered tool (March 1999 -- Buy this issue NOW!)

Auto Cupboard Light: Let there be light -- whenever you open the door to the depth of darkness in your wardrobe! (March 1999 -- Buy this issue NOW!)

Twinkle Twinkle Reaction Game: Twinkle twinkle little chip, you'll be tuneful if we're quick!  (January 1999 -- Buy this issue NOW!)

Alternative Courtesy Light Controller: Motorists - lighten the depth of darkness in your garage or driveway   (January 1999 -- Buy this issue NOW!)

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