A stock Arduino isn’t really known for its hi-fi audio generating abilities. For “serious” audio like sample playback, people usually add a shield with hardware to do the heavy li… ...

Now it is very easy to build your own siren sound alarm, small enough to be carried in a garment pocket. This powerful audio-visual alert device is realized using the renowned Arduino platform. The 9V ...

What Are PWM Pins? The Arduino Mega's PWM pins are digital output pins located on D2 to D13 and D44 to D46, coming to a total of 15.

Audio output is via PWM, as is common in low-cost microcontroller projects. It’s a fun build and we’re sure [Kevin] learned plenty about wavetable synthesis along the way.

CleO incorporates 8 MBytes of eFlash memory for embedded data storage of display or audio objects, with a Micro-SD card socket for external storage up to 32 GBytes. Connectivity options include an SPI ...

Also on there is a Class-D (digital, PWM) audio amplifier with a 1W speaker, a thermocouple input (comes with a probe), solid state relay outputs and a microSD memory card slot. “It is always ...

In this tutorial, T.K. Hareendran shows us how to set up an interleaved PWM output on an Arduino Uno. He then uses different techniques to validate that the desired result is achieve.

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 ...