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Magazine July/August 2008

Magazine July/August 2008

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60 Elektor Credits

Content

Tracking Solar Panel

Portable Thermometer

Multitasking Pins

Environmentally-friendly Mosquito Repeller

Dimmable LED Light

Solar-powered Automatic Lighting

Fog Lamp Sensor

Battery Discharge Meter

Mysterious Self Charging

LED Tester

Wireless Audio Transmitter

Gas Flow Meter

RFID Door Opener

Bell Alarm

Smart Chocolate Block

Slave Flash Trigger

Operating Hour Counter

Put that Light Out!

Post-box Monitor

Lamp in a Wine Bottle

Pitch Meter for Model Helicopters

Smooth Flasher

Deluxe 123 Game

Temperature Sensor with 2-Wire Interface

Video Isolator

Reaction Race using ATtiny13

48-V Microphone Supply

Discrete PWM Generator

Simple One-wire Touch Detector

Solar Cell Voltage Indicator

Minimalist Oscilloscope

Underwater Magic

Flowcode for Garden Lighting

The Gentle Touch

High-intensity LED Warning Flasher

Stroboscope with Trigger Input

Remote Control Mains Switch

Tent Alarm

Gratis Symmetrical Opamp Supply Voltages

Simple Audio Power Meter

Mini High-voltage Generator

Programmable Servo Driver

Simple USB AVR-ISP Compatible Programmer

123 Game – all MCU-free

Cheap 12 V/230 V Invertor

USB <-> RS-232 Cable

Car & Motorcycle Battery Tester

Mobile Phone Data Cable goes Interface Converter

Intelligent Presence Simulator

Low-Voltage Step-Down Converter

LiPo Manager

DCF77 Preamplifier

Camera = Data Store

RC Mains Sockets with Feedback

Magnetic Flip-flop

Indicator for Weller Soldering Stations

Play the Guitar – Recycle Tip

Automatic Range Switching

Active Rectifier

GPS Receiver

ZigBee-based Wireless Motion Sensor

Logic Goats

Simple Capacitive Touch Sensor

TV Muter

Universal Thermostat

DTMF-controlled Home Appliance Switcher

USB-standby-killer

Fog Lamp Switch

22-bit A/D Converters

Solar-powered Battery Charger

Simple LED Bike Light

Solar-powered Uninterruptible PSU

RGB Lights

FM Microbug

Energy-efficient Backlight

SimpleProg

Radio Control Signal Frame-rate Divider

FL Twilight Switch

The OC171 Mystery (solved)

Pseudo-random Glitter

Microlight Fuel Gauge

PWM Control for Permanent Magnet Motors

Five-output Video Distribution Amplifier

Turbo BDM Lite ColdFire Interface

Automatic S/PDIF Selector

Phantom Supply for TV Antenna

Mini Bench Supply

Servo Control

Software-defined Valve Radio

Detector with Amplification

Piezo-powered Lamp

Digital Rev Counter for (Older) Diesels

Golf Tally

Solar Cell Array Charger with Regulator

Assistance for BASCOM Programmers

LED Spinning Top

Cigarette-lighter Battery Charger

AlphaSudoku

Automatic car Battery Charger

Auto-off for Audio Gear

LED Switching Regulator

Lighting Governor

Solar lamp using the PR4403

12V Fan Directly on 230 V

Outside Light Controller

ISO Standard for Car Radios

PR4401/02 off the Beaten Track

Price: USD 9.40

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