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What's in Elektor's July & August 2012 summer edition!

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Published on Jun 21, 2012

•'Green' Solar Lamp
•16 Ways to Switch your AC Power On
•A Zero Current Switch; For inductive Loads
•Arduino LC'Deed; Control a display using a (virtual) serial port
•Arduino on Course; Part 1a: Welcome & Arduino 8-bit sound generation
•ATtiny Goes Wireless
•AVR MultiTool; Measure, control, experiment
•Battery Maintainer
•Bicycle Rear Light; one super LED and 10 components last 5 minutes
•Bulb-2-LED Bicycle Light Conversion
•Chateau Rising Damp; An ATM18 hygrometer
•DC Protection for Speakers
•Economical 7-segment Display
•Elex Board Layout in LochMaster
•Equipment 'ON' Counter for 68 Years Max.
•EUC Penta-Hexadoku; Puzzle with an electronics touch
•EZ-SMD OpAmp Tweaker Board
•FET Radiation Meter
•Gee Whiz, a GPIB-to USB Converter; $50 interface circuit brings 80s/90s edebris to life
•Goodbye Standby
•I've Got the USB Power; But how much in milliamps?
•Knitting Counter
•Laser Projection with Arduino
•LC Oscillator with Pot Tuning
•LED Garland Controller; All the colours of the rainbow
•LED-LDR Ring Oscillator
•Lengths Counter for Swimmers; An example application using speech synthesis, an accelerometer, and a magnetometer
•Loudspeaker Resonant Frequency Meter; For laptop or PC
•Mini Stroboscope
•Mini-Mute; Kill noisy TV commercials with one stroke
•MOSFET Circuit Breaker
•Noisy LEDs; Simple generation of complex sound effects
•One-transistor Voltage Converter
•OPA660: Diamonds are not forever; Component Tips series
•Power LED Driver
•Pt100 Simulator
•Room for a Small One?
•Same PCB Shoots Again! A thermometer with an unusual readout
•Shoo Heron! Outsmart a clever bird
•Smoke Alarm Power Supply; Simply but effective
•Soft AC Line Start
•TAPIR Sniffs it Out! Ultrasensitive wideband E-smog detector
•The Maze of the Lost Electronics Technician
•The Renesas RL78 Ecosystem; Design with the power of partnership
•Tiny Compass
•Two-Transistor Regenerative Receiver
•Universal Measurement Amplifier / Attenuator; For laptop or PC
•USB Control Board; USB-to-LPT bidirectional adapter
•Voltage Inverter using a 555

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