PIC-Based Projects

PIC MIDI Sound Generator
5 Octave - 18 Instruments and 8 note polyphony

PIC 'n MIX:
PIC controlling matrixed LEDs while maintaining constant brilliance

PC-Controlled:
Burglar Alarm System - Part 2

PIC In-Circuit Programming Add-On
Programming and even debugging without removing the micro

PC-Controlled:
Burglar Alarm System - Part 2

PC-Controlled:
Burglar Alarm System - Part 1

PIC n Mix:
Real Time Clocks

PIC n Mix:
Static LCDs and PICs

Teach-In 2008 - Part 4:
Using Alphanumeric LCDs under PIC Control

Teach-In 2008 - Part 3:
Using PIC Microcontrollers – More PIC Control Concepts Plus Multiplexing

Teach-In 2008 - Part 2:
Using PIC Microcontrollers – Programme basic commands, plus simple LED control

PIC Speech Synthesiser:
PIC-generated speech for PIC projects

Teach-In 2008 - Part 1:
Using PIC Microcontrollers – Introduction

USB Electrocardiograph:
Displays ECG on a PC

Inductance & Q-Factor Meter Part 2:
A wide range multi-frequency inductance and Q-factor meter

V8 Doorbell:
Sounds like a real V8 engine

Inductance & Q-Factor Meter:
A wide range multi-frequency inductance and Q-factor meter

Build Your Own Siesmograph:
Display ‘tremors’on a PC

PIC-based Car Computer:
An aid for motorists who don’t live with a mechanic!

PIC-based Watering Timer:
Keep your plants in pristine condition before you PIC them!

PIC NIM Machine:
Nimbly PIC a winning pile! Latest incarnation of the ancient Chinese game.

PIC Virus Zapper MK2:
An alternative method that could keep those bugs at bay!

Random LED Flasher:
Enjoy the fun of an interesting and attractive pattern display.

Serial Interface for PICs & VB8:
Serial hardware plus standalone license-free OCX software.

PIC-A-Colour Game:
PIC your wits against a colourful code-setting mastermind!

EPE PIC Met Office - Part 1:
Forget the seaweed and the proverbs, and let technology cater for your insatiable interest in the weather!

PICronos LED Wall Clock - Part 2:
Ancient and modern techniques display timely brilliance on a grand scale!

PIC-based Fido Pedometer:
Keeping Track of How Far You’ve Walked!

PICronos LED Wall Clock - Part 1:
Ancient and modern techniques display timely brilliance on a grand scale!

PIC-based Intelligent Garden Lights:
An easy-to-build lights controller that knows when it’s time to switch off.

PIC-based Earth Resistivity Logger:
Help your local archaeological society to locate and reveal the hidden mysteries of our ancestors.

PIC-based Driver Alert:
A thinking time reaction tester – award-winning design in the Young Electronic Designer Awards 2002.

PIC-based Brainibot Buggy:
A low-cost, easy-build buggy that has a mind of its own!

PIC-based Wind Tunnel:
Scientifically investigate Nature’s second essential element.

PIC Wind Speed Meter:
Ultrasonic techniques replace mechanics and calibration.

PIC Chaser Lights:
The third part of a 3-part series using PICAXE devices.

Versatile PIC Flasher:
An attractive display to enhance your Christmas decorations
or your child’s ceiling

PICAXE Projects - Part 2:
The second of a 3-part series using PICAXE devices - PIC microcontrollers that do not need specialist knowledge or programming equipment

IC Tester:
Let a PIC and PC check the health of your digital logic chips!

PIC Pocket Battleships:
Become a Sea Lord with our interpretation of the age-old pen and paper game!

EPE Morse Code Reader:
Multi-function Morse code translation and learning aid; standalone plus optional PC interface

Portable Telephone Tester:
A useful tool for testing those bargain boot sale phones before you buy

Freebird Glider Control:
An automatic flight attitude control system for your free-flight model glider

PIC World Clock:
Graphically displays world map, calendar, clock and global time-zone data

EPE StyloPIC:
Have fun with a modern interpretation of a classic musical instrument

BIOPIC Heartbeat Monitor:
Take a peek at the rhythmic waveforms that keep you ticking

Freezer Alarm:
How to prevent your food from defrosting unexpectedly

PIC Big-Digit Display:
Control the giant ex-British Rail platform clock 7-segment digits that are now available on the surplus market

PIC-Controller Intruder Alarm:
A sophisticated multi-zone intruder detection system that offers deluxe monitoring facilities

PIC Virus Zapper:
Can disease be cured electronically? Investigate this controversial subject for yourself

PIC Mini-Enigma:
Share encrypted messages with your friends -- true spymaster entertainment

PIC Spectrum Analyzer:
PIC-controlled PC interface for analyzing analog waveforms and displaying their harmonic content

PIC Magick Musick:
Conjure music from thin air at the mere untouching gesture of a fingertip

PIC Polywhatsit:
A novel compendium of musical effects to delight the creative musician

PIC Toolkit Mk3:
By popular demand - an enhanced PIC microcontroller programming development board

Water Monitor:
How costly is it to keep your garden watered? Find out and control it

Digitimer:
Enhance your ease of viewing - build an add-on VCR record timer unit for Sky TV

PIC to Printer Interface:
How to use dot-matrix printers as data loggers with PIC microcontrollers

PIC Graphics LCD Scope:
Long awaited, a PIC and graphics LCD signal monitor for your workshop

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

PIC Pulsometer:
Accurately measures and displays timings, frequency, and capacitance

PIC-based Dual-Channel Virtual Oscilloscope:
A virtual oscilloscope interface for monitoring audio frequency signals via your computer

PIC-based Remote Control IR Decoder:
Allows PIC programming enthusiasts to remotely control their designs

EPE Moodloop :
Have a relaxing "field-day" (or night) with our latest PIC-based brainwave generator

PIC-Gen frequency generator/counter:
Expand your test capability with this versatile PIC-based test equipment

PIC-based Canute Tide Predictor:
A simple PIC-based tide calculator for paddlers, dabblers, and kings of the sand castle

Multi-Channel Transmission System:
An 8 to 16-channel 2-wire PIC-based signaling link with optional interface for private phone systems

Micro PICscope:
There's plenty of scope for this ingenious piece of portable test gear

EPE ICEbreaker:
Real-time PIC In-Circuit Emulator (ICE), programmer, debugger, and development system

PIC Video Cleaner:
Improving video viewing on poorly maintained TVs and VCRs

PIC Micro-Probe:
A hardware tool to help debug your PIC software

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

Ginormous Stopwatch - Part 1:
PIC-based events timer with in-built LCD and radio-controlled gating

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

8-Channel Analog Data Logger: The new PIC16F877 microcontroller offers versatile logging opportunities

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

PIC-based MIDI Handbells:
Ring out thy bells will merry tolling - plus a MIDI PIC-up, of course!

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!

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!

Versatile Event Counter:
Counting and timing music beats, rowing rates, clock ticks, and much, much more!

Time and Date Generator: Add time and date codes to your CCTV security monitor

Wireless Monitoring System: Low-cost radio-linked short-range data-logging is now readily and simply available with this PIC-based solution

PIC MIDI Sustain Pedal: Add sustain and glissando to your MIDI line-up with this inexpensive PIC-controlled effects unit

EPE Mind PICkler: Want seven ways to relax? Try our PIC-controlled mind machine!

Fading Christmas Lights: How Seasonal! How Festive! But How Different!

PIC-Based Ultrasonic Tape Measure: You've got it taped if you PIC this ultrasonic distance measuring calculator

Top Tenners: Bedside Nightlight:
A two-in-one design that will bring comfort and joy to your youngster’s room.

Top Tenners: Cardboard Clock:
An intriguing and novel way in which you can tick-off time passing!

Top Tenners: Spooky Bug:
Hocus-pocus, get your Halloween party off to a shriek!

Top Tenners: Vibration Alarm:
Guard your property by sounding an alarm whenever it is disturbed!

Top Tenners: Priority Referee:
Decide which of two players was really the first.

Top Tenners: Master/Slave Intercom:
An intercom has many uses around the home and office, including acting as a baby alarm.

Top Tenners: Electronic Two-Up:
Chance your luck with this novel game!

Practical Radio Circuits - Part 2: (Regeneration, Q-Multiplier, Reflex Radio, Speaker Amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Top Tenners: Ultimate Egg Timer
Our first project in this series is a handy device for timing eggs, telephone calls, player’s moves in games like chess, and for how long you brush your teeth!

Practical Radio Circuits - Part 1: (Headphone Amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Back to Basics - Part 5:
Mini Theremin

Back to Basics - Part 5:
Light-sensitive Twilight Switch

Back to Basics - Part 4:
Live Wire Detector

Back to Basics - Part 4:
Medium Wave Radio

Back to Basics – Part 3:
Touch Light.

Back to Basics – Part 3:
Plant Watering Reminder.

Back to Basics - Part 2:
Metal Detector.

Back to Basics - Part 2:
Simple Timer.

Back to Basics - Part 1:
Hearing Aid.

Back to Basics - Part 1:
Audio Power Amplifier.

Perpetual Projects - Part 4:
Three more solar-powered projects - Gate Sentinel, Bird Scarer, and In-Out Register

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

Perpetual Projects - Part 2 - LED Flasher and Double-Doorbuzzer:
Two more perpetual projects for which you can be "eternally" grateful!

Perpetual Projects - Part 1 - Solar-Powered Power Supply and Voltage Regulator:
Free power for your projects! The first in a new series

In-Circuit Ohmmeter:
Our final Top-Tenner ("Beginners") project enables you to measure in-circuit resistance

Dummy PIR Detector:
An extremely inexpensive way to fool would-be intruders

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

Sound Trigger:
Using a sound trigger/switch to soundly lighten your darkness

Wave Sound Effect:
Let the susurration of the waves soothe intrusions on your senses

Circuit Tester:
Simply check for open and short circuits with another "Top-Tenner" project

Simple Metronome:
Have a good musical time with another "Top Tenner" beginner's project

Versatile Optical Trigger:
A "Top Tenner" (beginner) project for light-controlling electrical equipment

Static Field Detector:
An amusing "electroscope" starter project that reveals if your friends are "highly charged"

Sample-and-Hold:
A "Top-Tenner" add-on unit for your multimeter

Fridge/Freezer Alarm:
Another "Top-Tenner" project - audibly warns of imminent money loss!

Steeplechase Game:
Another "Top Tenner" design - how well can your horse jump the fences?

Quiz Game Indicator:
A low-cost fun project that cannot be questioned

Camera Shutter Timer:
Make sure that you get the right exposure with this simple starter design

Automatic Nightlight:
A simple starter project to lighten the darkness for the young and the frail

Low-Cost Capacitance Meter:
An easy-to-build starter project that adds a useful tool to your workshop

Flash Slave:
Make a striking image with this Starter Project

Automatic Train Signal:
This easy-to-build low-cost starter project is for model railways

Voltage Monitor:
This month's starter project illuminates your battery's condition

Flashing Snowman:
Add a "sparkle" to your festive decorations with this fun starter project!

Magnetic Field Detector:
Where's the attraction? Find out with out Starter Project!

Acoustic Probe:
An audio "telescope" or "stethoscope/microscope" to investigate distant or low-level sounds

Mains Cable Detector:
This simple Starter Project detects mains cables by sensing their "hum"

Loop Aerial Short Wave Receiver:
Discover the thrill of making your own radio with this simple Starter Project!

Sound Activated Switch:
Just one logic gate allows a simple mic to control - well almost anything!

LED Stroboscope:
Another low-cost starter project - how to "freeze" the motion of small machines

Clipping Video Fader:
The first in a new series of Starter Projects - add a simple fading facility to your camcorder/TV link

Electric Mobility Buggy Monitor
Adds speed and distance monitoring to wheeled vehicles     May 2008 - Purchase this issue

Low-Cost intercooler Water Spray Controller:
A cheap but sophisticated way of controlling a turbo car intercooler water spray

Vehicle Multi-Voltage Monitor:
Monitors voltages and sensor signals in a car

PIC-based Car Computer:
An aid for motorists who don’t live with a mechanic!

PIC-based Driver Alert:
A thinking time reaction tester – award-winning design in the Young Electronic Designer Awards 2002.

Lights Needed Alert:
Ensure your car can be seen when driven in poor lighting conditions

Ice Alert:
Tri-color LED warns motorists and gardeners of impending frost danger

Motorists' Buzz-Box A multipurpose piece of test equipment for the intrepid car owner

Garage Link:
An open and shut case for a 418MHz Transmitter/Receiver link

Parking Warning System:
Avoid having an unwanted rear entrance to your garage

Vehicle Frost Box:
Helps to predict the presence of black ice

Demister One-Shot:
Save car battery use and fuel consumption by minimizing rear-screen power-on times

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

12V Battery Tester:
Give a probing health check to your lead-acid batteries

Alternative Courtesy Light Controller: Motorists - lighten the depth of darkness in your garage or driveway

Serial I/O Controller & Analogue Sampler:
Looking for an easy-to-drive I/O controller?

Standby Power Saver:
Remotely turns off appliances in standby mode

Top Tenners: Bedside Nightlight:
A two-in-one design that will bring comfort and joy to your youngster’s room.

RC Car Wars:
It’s a bit like Robot Wars without the expense or destruction!

Freebird Glider Control:
An automatic flight attitude control system for your free-flight model glider

Infrared Autoswitch:
Keeps work-surface lights turned on only while you are near them

Pitch Switch:
A novel sound-operated switch with precise frequency response

Doorbell Extender:
Through-the-mains controller links your doorbell and garage or workshop, plus remote appliance switching

AM/FM Radio Remote Control:
Coded radio remote control has become straightforward and requires no UK licence

Reliable Infrared Remote Control: It has now become easy to build reliable IR systems - here's a selection of constructional articles to prove it!

Teach-In 2008 - Part 5:
Introduction to timers, BCD counting and equality checking

V8 Doorbell:
Sounds like a real V8 engine

Anyone At Home?:
Logically deter those shifty characters eyeing up your house!

Top Tenners: Vibration Alarm:
Guard your property by sounding an alarm whenever it is disturbed!

Alarm System Fault Finder:
A low-cost fault finder that will find a faulty sensor without the alarm system going off incessantly!

Super Motion Sensor
A highly responsive design that even detects a single finger moving at five metres!

PIC-based Driver Alert
A thinking time reaction tester – award-winning design in the Young Electronic Designer Awards 2002.

EPE Minder:

Looks after your personal belongings – maybe even your children!

Door Defender:
Keep an armed guard on your door or valuables

Pickpocket Alarm:
Keep bags safe from the artful dodger

Freezer Alarm:
How to prevent your food from defrosting unexpectedly

Washing Ready Indicator:
Has the washing machine finished? - Avoid those washday blues

PIC-Controller Intruder Alarm:
A sophisticated multi-zone intruder detection system that offers deluxe monitoring facilities

Versatile Current Monitor:
Monitors equipment current flow and warns if it changes significantly

Mains Failure Alarm:
Protect your freezer or fish tank contents, or monitor mains connections

Lights Needed Alert:
Ensure your car can be seen when driven in poor lighting conditions

Dummy PIR Detector:
An extremely inexpensive way to fool would-be intruders

Intruder Alarm Control Panel:
5-zone micro- controlled security system designed to meet British Standards specification BS4737

Sound Trigger:
Using a sound trigger/switch to soundly lighten your darkness

Body Detector:
Create your own "invisible shield" and let the force be with you!

Ice Alert:
Tri-color LED warns motorists and gardeners of impending frost danger

Opto-Alarm System:
Keep would-be intruders at bay with this portable, optically balanced security alarm

Fridge/Freezer Alarm:
Another "Top-Tenner" project - audibly warns of imminent money loss!

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)

PIR Light-Checker:
Be trigger happy with your outdoor security light system

Garage Link:
An open and shut case for a 418MHz Transmitter/Receiver link

Parking Warning System:
Avoid having an unwanted rear entrance to your garage

Versatile Burglar Alarm:
Simple, extendable, and easy-to-use indoor security monitoring

Loft Guard:
A lofty way to keep your power bills low and extend the life of your light bulbs

Vibralarm:
Multi-purpose vibration-triggered alarm with remarkable sensitivity

Child Guard:
Helping to protect your loved ones, an audible warning sounds if children (or others) approach a fire

Freezer Alarm:
Another low-cost starter project - Howe to avoid an expensive thaw!

Intruder Deterrent:
Is there anyone at home? Would-be intruders may never be sure if the lights keep switching

Light Alarm: Looking for undercover protection? Try this simple light-activated alarm!

PIC-based Car Computer:
An aid for motorists who don’t live with a mechanic!

PIC-based Brainibot Buggy
A low-cost, easy-build buggy that has a mind of its own!

EPE Hybrid Computer - Part 2:
Real-time computation of complex system behavior is greatly simplified by combining analogue and digital processing techniques

EPE Hybrid Computer - Part 1:
Real-time computation of complex system behavior is greatly simplified by combining analogue and digital processing techniques

Big-Ears Buggy: Sound-activated mobile "pet" buggy that follows your voice

Manual Stepper Motor Controller:
Illustrates how a 4-phase stepper motor can be controlled bi-directionally using a conventional rotary switch

PhizzyB Computers Part 7:
"Mom, it's making eyes at me!" The PhizzyBot now has vision ... here's how ...

PhizzyB Computers Part 6:
Adding microswitches to the PhizzyBot and creating collision detection and response routines

PhizzyB Computers Part 5: Constructing the motorized platform and DC motor controller output device for a simple robot called the PhizzyBot

PhizzyB Computers Part 4: In which we build polled and interrupt-driven input switch devices and investigate interrupts and interrupt service routines

PhizzyB Computers Part 3: In which we construct a liquid crystal display (LCD) output module, and also learn about the stack and subroutines

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

PhizzyB Computers Part 1: Introducing a new series on understanding computers, featuring the PhizzyB and PhizzyB Simulator

The Power of Mechatronics - Part 6:
A simple approach to RF networking

Practical Radio Circuits – Part 8:
The double-conversion Superhet (Prescaler, Mixers and Oscillators)

Practical Radio Circuits – Part 7:
The Superhet (Prescaler, Mixers and Oscillators)

Practical Radio Circuits – Part 6:
Single-sideband and direct conversion.

Practical Radio Circuits – Part 5:
A highly sensitive receiving system and buffer amplifier.

RC Car Wars:
It’s a bit like Robot Wars without the expense or destruction!

Practical Radio Circuits – Part 4:
Tuning systems, coils, and coil packs for general coverage and the amateur bands

Practical Radio Circuits – Part 3:
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter. (Regeneration, Q-Multiplier, Reflex Radio, Speaker Amplifier)

Practical Radio Circuits - Part 2: (Regeneration, Q-Multiplier, Reflex Radio, Speaker Amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Practical Radio Circuits - Part 1: (headphone amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Back to Basics - Part 4
Medium Wave Radio

FM Frequency Surfer:
Trawl-in those unusual contacts on the 88MHz to 125MHz band.

EPE Morse Code Reader:
Multi-function Morse code translation and learning aid; standalone plus optional PC interface

MK484 Shortwave Radio:
The MK484 is a replacement for the once-popular ZN414 radio receiver IC

HT Power Supply:
Power your favorite antique valve radio!

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

Compact Shortwave Loop Aerial:
This Q-multiplied loop amplifies signals and nulls out electrical interference. Four plug-in loops covering 1.5MHz to 30MHz

MSF Signal Repeater and Indicator:
How to receive MSF radio clock signals in a shielded building

Active Ferrite Loop Aerial:
Superbly designed vertically and horizontally rotating reception optimizer

Garage Link:
An open and shut case for a 418MHz Transmitter/Receiver link

High-Performance Regenerative Receiver:
A beautifully designed receiver covering 130kHz to 30MHz global broadcast and amateur bands

Loop Aerial Short Wave Receiver:
Discover the thrill of making your own radio with this simple Starter Project!

AM/FM Radio Remote Control: Coded radio remote control has become straightforward and requires no UK licence

Mechanical Radio:
Wrist power provides a renewable radio energy source

Wireless Monitoring System: Low-cost radio-linked short-range data-logging is now readily and simply available with this PIC-based solution

Four-Channel A/V Selector
Select one of four S-Video or composite video sources plus audio

Camcorder Power Supply:
Battery replacement with a lot more bottle

Camcorder Mixer:
Enhance the sound of your home video productions

PIC Video Cleaner:
Improving video viewing on poorly maintained TVs and VCRs

Clipping Video Fader:
The first in a new series of Starter Projects - add a simple fading facility to your camcorder/TV link

Time and Date Generator: Add time and date codes to your CCTV security monitor

TV Volume Compressor: Taking a level approach to cracking the TV adverts sound barrier

Electrosmog Sniffer:
Read Most EMFs

USB Electrocardiograph:
Displays ECG on a PC

Inductance & Q-Factor Meter Part 2:
A wide range multi-frequency inductance and Q-factor meter

Build Your Own Siesmograph:
Display ‘tremors’on a PC

Inductance & Q-Factor Meter:
A wide range multi-frequency inductance and Q-factor meter

Serial Interface for PICs & VB8:
Serial hardware plus standalone license-free OCX software.

Alarm System Fault Finder:
A low-cost fault finder that will find a faulty sensor without the alarm system going off incessantly!

Low Range Ohmmeter Adaptor MK2
Improved accuracy when measuring low resistance

Back to Basics - Part 4
Live Wire Detector

200 kHz Function Generator:
Versatile test gear that generates sine, square and triangle-wave outputs, with controllable amplitude.

PIC-based Wind Tunnel:
Scientifically investigate Nature’s second essential element.

Temperature Sensor, Voltage Sensor and VU Display:
The second of a 3-part series using PICAXE devices - PIC microcontrollers that do not need specialist knowledge or programming equipment

IC Tester:
Let a PIC and PC check the health of your digital logic chips!

Portable Telephone Tester:
A useful tool for testing those bargain boot sale phones before you buy

Frequency Standard Generator:
High precision 1Hz to 100kHz frequency source, derived "off-air"

RH Meter:
How healthy is the moisture content in your home? By monitoring its relative humidity you can then take steps to control it

Versatile Current Monitor:
Monitors equipment current flow and warns if it changes significantly

PIC Spectrum Analyzer:
PIC-controlled PC interface for analyzing analog waveforms and displaying their harmonic content

Versatile Bench Power Supply A well-proven power supply that provides 0V to 20V with current limiting in two ranges of 100mA and 1A

Capacitance Meter:
Allows any capacitor type to have it's true value readily measured

Teach-In 2002 Power Supply:
Supplies +/-12V and +5V at 600mA

In-Circuit Ohmmeter:
Our final Top-Tenner ("Beginners") project enables you to measure in-circuit resistance

PIC Graphics LCD Scope:
Long awaited, a PIC and graphics LCD signal monitor for your workshop

Circuit Tester:
Simply check for open and short circuits with another "Top-Tenner" project

PC Audio Power Meter:
Measure audio amplifier power output via your PC computer

PIC-Monitored Dual PSU:
Workshop power supply with multiple options and monitoring of voltage and current using a PIC microcontroller plus LCD readout

Motorists' Buzz-Box A multipurpose piece of test equipment for the intrepid car owner

Sample-and-Hold:
A "Top-Tenner" add-on unit for your multimeter

PIC Pulsometer:
Accurately measures and displays timings, frequency, and capacitance

EPE Moodloop Field Strength Indicator:
Check that your Moodloop's loop is working, and find the sources of 50HZ mains fields

Handy Amp:
A simple multi-purpose amplifier with built-in speaker and headphone output

PIC-Gen frequency generator/counter:
Expand your test capability with this versatile PIC-based test equipment

Low-Cost Capacitance Meter:
An easy-to-build starter project that adds a useful tool to your workshop

Micro PICscope:
There's plenty of scope for this ingenious piece of portable test gear

Voltage Monitor:
This month's starter project illuminates your battery's condition

PC Audio Frequency Meter:
Use your PC's bidirectional printer port to monitor frequencies up to 32kHz

12V Battery Tester:
Give a probing health check to your lead-acid batteries

Handheld Function Generator: Sine, triangle, and square wave signals always at hand, with almost full audio range coverage and output adjustability

June 2008 - Purchase this issue

Mini Theremin - Part 2
A unique and versatile electronic musical instrument

Starship Enterprise Door Sounder
A project especially for 'Trekkies'

May 2008 - Purchase this issue

Mini Theremin - Part 1
A unique and versatile electronic musical instrument

Studio Series - Remote Control Module
If you’ve built our preamp described in February 2008, then this project is a must-have addition.

Studio Series - MIDI Activity Detector
If you build, repair or regularly set up MIDI (Musical Instrument Digital Interface) systems, you need this easy-to-use, ‘quick-check’ gadget!

Studio Series - Stereo Headphone Amplifier:
A top-class headphone amp that can drive high or low impedance ‘phones to full power levels, with very low noise and distortion

MIDI Drum Kit- Part 4:
The software...and driving it!

Studio Series - Stereo Headphone Amplifier:
A top-class headphone amp that can drive high or low impedance ‘phones to full power levels, with very low noise and distortion

MIDI Drum Kit- Part 3:
Building the sensors and stand

Studio Series - Stereo Preamplifier:
A Superb Preamplifier For The Audio Enthusiast!

PIC Carillon:
Ding-Dong Merrily on High, or Lower!

MIDI Drum Kit- Part 2:
Puting it all together

PIC Speech Synthesiser:
PIC-generated speech for PIC projects

Build a charger for your iPOD or MP3 player :
Charge from a mains plug-pack or a car battery

MIDI Drum Kit- Part 1:
Drums without the skins

Experimenter's Audio System:
Audio preamp, filters, power amp and PSU for radio experiments

Practical Radio Circuits - Part 2: (Regeneration, Q-Multiplier, Reflex Radio, Speaker Amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Practical Radio Circuits - Part 1: (Headphone Amplifier)
Dispelling the mysteries of radio. A new series featuring a variety of practical circuits for the set builder and experimenter.

Back to Basics - Part 1:
Hearing Aid.

Back to Basics - Part 1:
Audio Power Amplifier.

Headset Communicator:
Ideal for directors who don't wish to shout - comprises master console and three slave units.

Vinyl-to-CD Preamplifier:
Copy your old records to CD, and perhaps enhance their quality in the process!

Big-Ears Buggy:
Sound-activated mobile "pet" buggy that follows your voice

Simple Audio Circuits - Part 4 - Loudspeaker Enclosures, Tuning Oscillator and Resonance Detector:
A compendium of useful audio circuits for the experimenting constructor

Simple Audio Circuits - Part 3 - Power Supplies, Loutspeakers, Crossover Networks, and Filters:
A compendium of useful audio amplifier circuits for the experimenting constructor

Simple Audio Circuits - Part 2 - Preamps, Tone Controls, and Filters:
A compendium of useful audio amplifier circuits for the experimenting constructor

Simple Audio Circuits - Part 1 - Power Amplifiers:
A compendium of useful audio amplifier circuits for the experimenting constructor

Electric Guitar Tuner:
Six fixed frequencies and an l.e.d. help you to stay in tune

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!

Stereo/Surround Sound Amplifier:
An easy-to-build design whose effect, considering its inexpensive cost, is convincing!

Camcorder Mixer:
Enhance the sound of your home video productions

Sound Trigger:
Using a sound trigger/switch to soundly lighten your darkness

Wave Sound Effect:
Let the susurration of the waves soothe intrusions on your senses

PC Audio Power Meter:
Measure audio amplifier power output via your PC computer

Simple Metronome:
Have a good musical time with another "Top Tenner" beginner's project

Two-Way Intercom:
How to create your own local two-way chat zone

Handy Amp:
A simple multi-purpose amplifier with built-in speaker and headphone output

Versatile Mic/Audio Preamplifier:
The new SSM2166 chip offers AGC compression, limiting, and noise reduction

Easy-Typist Tape Controller:
Soundly helps copy-typists who can't type

Scratch Blanker:
Spin-doctoring for a better sound bite! Use this project to remove the "clicks" and "pops" from your old vinyl records

QWL Loudspeaker System:
Enjoy superb hi-fi sound at a fraction of the cost of an equivalent commercial speaker system!

PIC-based MIDI Handbells:
Ring out thy bells will merry tolling -- plus a MIDI PIC-up, of course!

Voice Record & Playback Module:
Less cuddly than a Firby, but more useful!

PIC MIDI Sustain Pedal: Add sustain and glissando to your MIDI line-up with this inexpensive PIC-controlled effects unit

Top Tenners: Cardboard Clock:
An intriguing and novel way in which you can tick-off time passing!

PIC-A-Colour Game:
PIC your wits against a colourful code-setting mastermind!

Top Tenners: Ultimate Egg Timer
Our first project in this series is a handy device for timing eggs, telephone calls, player’s moves in games like chess, and for how long you brush your teeth!

Atmospherics Monitor:
Tune in to the sounds of the heavens in turmoil!

PIC-based Earth Resistivity Logger:
Help your local archaeological society to locate and reveal the hidden mysteries of our ancestors.

Wind-up Torch (Flashlight) Mk II:
A new twist for providing light without a battery!

Back to Basics - Part 2:
Metal Detector.

Tesla High Voltage Transformer:
Spectacularly create your own sizzling DIY lightning!

EPE Morse Code Reader:
Multi-function Morse code translation and learning aid; standalone plus optional PC interface

Rotary Combination Lock:
Pure logic and a "stack of cards" function enhance security

World Lamp:
Low cost lighting when there's no mains supply available

Solar Charge-and-Go:
Use solar power to charge your 2·4V or 3·4V NiCad and nickel metal hydride mobile phone batteries

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

Ghost Buster:
Spooky feelings all around you? Track down their source!

Pitch Switch:
A novel sound-operated switch with precise frequency response

Perpetual Projects - Part 4:
Three more solar-powered projects - Gate Sentinel, Bird Scarer, and In-Out Register

LED Super Torches (Flashlights):
Two high-tech (one super-high-tech) designs to brighten your nights

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

Perpetual Projects - Part 2 - LED Flasher and Double-Doorbuzzer:
Two more perpetual projects for which you can be "eternally" grateful!

Perpetual Projects - Part 1 - Solar-Powered Power Supply and Voltage Regulator:
Free power for your projects! The first in a new series

EPE Snug-Bug:
Treat your tropical pets to a personalized 4-channel central heating system

DIY Tesla Lightning:
Build a giant Tesla Coil and challenge Zeus at creating lightning!

Body Detector:
Create your own "invisible shield" and let the force be with you!

UFO Detector and Event Recorder:
Charting the X-files revolution

Static Field Detector:
An amusing "electroscope" starter project that reveals if your friends are "highly charged"

Handclap Switch:
Let there be light - quick as the clappers

Wind-Up Torch/Flashlight:
An occasional twist of a knob provides light without battery power

g-Meter:
Use a space-age chip to measure g-forces

Atmospheric Electricity Generator:
Investigate Nature's power-house with this intriguing experimental design

PIC-based Canute Tide Predictor:
A simple PIC-based tide calculator for paddlers, dabblers, and kings of the sand castle

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!

Ultrasonic Puncture Finder:
Find that elusive puncture speedily and without water!

Mechanical Radio:
Wrist power provides a renewable radio energy source

Mains Monitor
Keep track of electricity in your home        
August 2008 - Purchase this issue

DC Relay Switch
Control high current loads with a few milliamps         
August 2008 - Purchase this issue

Temperature Switch
CA cheap general-purpose design that can work up to 245 deg C       
August 2008 - Purchase this issue

Galactic Voice
Develop an instant rapport with Droids, Cyclons, Klingons and Daleke         July 2008 - Purchase this issue

COOLMASTER
Turn a fridge into a wine chiller or a freezer into a fridge          July 2008 - Purchase this issue

Universal High Energy LED Lighting System - Part 2
An incredibly versatile Luxeon LED lighting system - easy dimming, flashing and automatic switch-on

July 2008 - Purchase this issue

Universal High Energy LED Lighting System - Part 1
An incredibly versatile Luxeon LED lighting system - easy dimming, flashing and automatic switch-on                           June 2008 - Purchase this issue

Monopoly Money
See if you can do better than Wall Street                               June 2008 - Purchase this issue

Flourescent Tube Driver:
Provides fluorescent lighting from a 6V rechargable battery. Ideal for emergency, camping and no-mains lighting applications

Teach-In 2008 - Part 5:
Introduction to timers, BCD counting and equality checking

Multi Throttle Control for PC Flight Simulators:
Build this simple controller and start flying with the big boys

Flourescent Tube Driver:
Provides fluorescent lighting from a 6V rechargable battery. Ideal for emergency, camping and no-mains lighting applications

Serial I/O Controller & Analogue Sampler:
Looking for an easy-to-drive I/O controller?

AVR ISP SocketBoard:
Supports dual-in-line AVR micros

Christmas Cheeks:
A novel technological way to decorate you for the festivities!

Serial Interface for PICs & VB8:
Serial hardware plus standalone license-free OCX software.

Top Tenners: Electronic Two-Up:
Chance your luck with this novel game!

Wind-up Torch (Flashlight) Mk II:
A new twist for providing light without a battery!

Back to Basics - Part 2:
Metal Detector.

Tesla High Voltage Transformer:
Spectacularly create your own sizzling DIY lightning!

EPE Bounty Treasure Hunter:
Inexpensive easy-build design that has good penetration and discrimination capabilities, helping you find the valuables, but not the iron and tin dross!

Freebird Glider Control:
An automatic flight attitude control system for your free-flight model glider

Rotary Combination Lock:
Pure logic and a "stack of cards" function enhance security

Infrared Autoswitch:
Keeps work-surface lights turned on only while you are near them

World Lamp:
Low cost lighting when there's no mains supply available

Washing Ready Indicator:
Has the washing machine finished? - Avoid those washday blues

Manual Stepper Motor Controller:
Illustrates how a 4-phase stepper motor can be controlled bi-directionally using a conventional rotary switch

RH Meter:
How healthy is the moisture content in your home? By monitoring its relative humidity you can then take steps to control it

Time Delay Touch Switch:
Automatically turns off lights after a preset period

Twinkling Lights:
A beautiful four-channel lighting effect for your Christmas tree or festive party

Pitch Switch:
A novel sound-operated switch with precise frequency response

Synchronous Clock Driver:
By popular request - a dual-frequency 50Hz/60Hz converter for mains-operated synchronous clocks

LED Super Torches (Flashlights):
Two high-tech (one super-high-tech) designs to brighten your nights

Lead-acid battery charger:
Keep your 6V and 12V batteries in a properly charged condition

Hosepipe Controller:
How to avoid wasting money when watering your garden

Magfield Monitor:
A sophisticated fluxgate sensor monitors static and alternating magnetic fields and outputs processed signals to a meter and headphones

EPE Snug-Bug:
Treat your tro al pets to a personalized 4-channel central heating system

Doorbell Extender:
Through-the-mains controller links your doorbell and garage or workshop, plus remote appliance switching

Two-Way Intercom:
How to create your own local two-way chat zone

Handclap Switch:
Let there be light - quick as the clappers

EPE Moodloop Field Strength Indicator:
Check that your Moodloop's loop is working, and find the sources of 50HZ mains fields

EPE Moodloop Power Supply:
Stably power your Moodloop (see August 2000 projects) and other 13.2V or 12V 1A designs

Quiz Game Indicator:
A low-cost fun project that cannot be questioned

PIR Light-Checker:
Be trigger happy with your outdoor security light system

Find It - Don't Lose It:
Offering the key to enlightened location finding

Easy-Typist Tape Controller:
Soundly helps copy-typists who can't type

Scratch Blanker:
Spin-doctoring for a better sound bite! Use this project to remove the "clicks" and "pops" from your old vinyl records

Demister One-Shot:
Save car battery use and fuel consumption by minimizing rear-screen power-on times

Mains Cable Detector:
This simple starter project detects mains cables by sensing their "hum"

QWL Loudspeaker System:
Enjoy superb hi-fi sound at a fraction of the cost of an equivalent commercial speaker system!

+/- 5V Micro Power Supply:
Supplies a well-regulated +/-5V, even if your battery's nearly flat!

Variable Dual Power Supply:
Fully variable from +/-3V to +/-15V up to 500mA, and short-circuit proof

Ultrasonic Puncture Finder:
Find that elusive puncture speedily and without water!

Magnetic Field Detector:
A neat and sensitive instrument for detecting low-level magnetic fields

12V Battery Tester:
Give a probing health check to your lead-acid batteries

Voice Record & Playback Module:
Less cuddly than a Firby, but more useful!

Ironing Board Saver:
Save energy with this safety add-on

Smoke Absorber: You don't want to inhale solder fumes do you? Help avoid them with our neat little heat-triggered tool

Auto Cupboard Light: Let there be light - whenever you open the door to the depth of darkness in your wardrobe!

Twinkle Twinkle Reaction Game: Twinkle twinkle little chip, you'll be tuneful if we're quick!

Alternative Courtesy Light Controller: Motorists - lighten the depth of darkness in your garage or driveway