| This circuit will need just a few micro-amps to make an LED flash. The energy comes from a home made ‘vegetarian’ battery.We have to admit t...
Martin Ossmann (82)
| In recent years the LED has seen many improvements so that we see them fitted in more and more situations where filament lamps were traditio...
| Switch-mode power supplies are not among the hobbyist’s favourite circuits. The specialised components are often hard to obtain, and mistake...
| In this fourth and final instalment we propose a few more programs and applications for the SX microcontroller from Scenix. Some of...
| With a PC-like RISC architecture and offering clock frequencies up to 100 MHz, the new SX processors from Scenix are currently the faste...
| Atmel’s AT90S1200 AVR-RISC 8-bit RISC processor has been available for some time now, and is generally recognised as a very fast device. Th...
| This sixth and final instalment deals with the subject of modulation and demodulation.
| In this instalment, we have another look at filters and their synthesis and then turn our attention to modulation techniques.
| An important function of digital audio signal processing is the generation of reverberation and echo. This instalment looks at how ech...
| After last month’s discourse on the computation of frequency spectra, that knowledge is used in this, the third, instalment to acquain...