I have been discussing control algorithms for a power supply and idly looking for some easy hardware on which to try the technique – hardware small enough to build into a prototype. See also: An AVR ...

Anyone who would like to learn Arduino programming and more about the fantastic electronic development platform which is fun and easy-to-use to create a wide variety of different projects. Maybe worth ...

Being new to Arduino, but having one project under my belt, I though I would try another. I wanted to play with a high-speed PWM – of which the 8pin ATtiny85 (or ..25 or ..45 – different flash only) ...

Most of us are aware that charlieplexing can drive a large number of LEDs from a relatively small number of I/O pins, but [David Johnson-Davies] demonstrates adding another dimension to that method to ...

Class D amps are simple – just take an input, and use that to modulate a square wave with PWM. Send this PWM signal to a MOSFET or something, and you have the simplest class D amp in existence.