| Looking for an audio project? This article explores the design of a DIY 50-m range directive sound beam using an array of piezo ultrasonic t...
More about Array (104)
| These days we all carry a whole array of portable devices along with us. Very handy, but those mobile phones and MP3 players have to be rech...
| How can you find out how stable a lab or benchtop supply is? You can get a good impression of the stability of a power supply under various...
| The rules of the ‘123’ Game are described in the ‘123 Game – all MCU-free’ article. Naturally, a more luxurious version can be built with a...
| This simple circuit can be used to charge batteries from a solar cell array. The circuit consists of an oscillator, a DC-DC step-up or ‘boos...
| Elektor in 1984 saw a niche for a disco lights controller that was unusual and novel in not being limited to dull, fixed light patterns. In...
| Industrial production-line robots require high-resolution sensors to measure the position of robotic actuators so that the tools can be accu...
| The miniaturisation of components does cause the odd bit of trouble at Elektor Electronics as well. While developing last June’s Electrosmog...
| The article on fingerprint authentication elsewhere in this issue describes the wide array of different incarnations and applications of the...
| This version of Solitaire is played with an array of LEDs instead of pegs, with a microcontroller behind the scenes to check if you’re any g...