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Magazine July & August 2012

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85 Elektor Credits

Content

The Renesas RL78 Ecosystem

Design with the power of partnership

Goodbye Standby

Noisy LEDs

Simple generation of complex sound effects

Bicycle Rear Light

one super LED and 10 components last 5 minutes

ATtiny Goes Wireless

A Zero Current Switch

For inductive Loads

LED-LDR Ring Oscillator

Soft AC Line Start

Knitting Counter

‘Green’ Solar Lamp

Power LED Driver

DC Protection for Speakers

Bulb-2-LED Bicycle Light Conversion

EZ-SMD OpAmp Tweaker Board

Room for a Small One?

LC Oscillator with Pot Tuning

FET Radiation Meter

Gee Whiz, a GPIB-to USB Converter

$50 interface circuit brings 80s/90s edebris to life

16 Ways to Switch your AC Power On

Arduino LC’Deed

Control a display using a (virtual) serial port

Mini-Mute

Kill noisy TV commercials with one stroke

Battery Maintainer

One-transistor Voltage Converter

Elex Board Layout in LochMaster

LED Garland Controller

All the colours of the rainbow

Lengths Counter for Swimmers

An example application using speech synthesis, an accelerometer, and a magnetometer

The Maze of the Lost Electronics Technician

Arduino on Course (1a)

Part 1a: Welcome & Arduino 8-bit sound generation

OPA660: Diamonds are not forever

Component Tips series

Chateau Rising Damp

An ATM18 hygrometer

Economical 7-segment Display

MOSFET Circuit Breaker

Voltage Inverter using a 555

AVR MultiTool

Measure, control, experiment

TAPIR Sniffs it Out!

Ultrasensitive wideband E-smog detector

USB Control Board

USB-to-LPT bidirectional adapter

I’ve Got the USB Power

But how much in milliamps?

Smoke Alarm Power Supply

Simply but effective

Equipment ‘ON’ Counter for 68 Years Max.

Universal Measurement Amplifier / Attenuator

For laptop or PC

Loudspeaker Resonant Frequency Meter

For laptop or PC

Pt100 Simulator

Shoo Heron!

Outsmart a clever bird

Tiny Compass

Two-Transistor Regenerative Receiver

Same PCB Shoots Again!

A thermometer with an unusual readout

Laser Projection with Arduino

Mini Stroboscope

EUC Penta-Hexadoku

Puzzle with an electronics touch

Size:

148 pages

Price: USD 15.40
Member price: USD 13.80

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