One again the team over at the RCarduino blog have published another interesting tutorial about working with digital audio and an Arduino - but this time with the 32-bit Due board. Their demonstration uses three counters, each of whose speed is determined by a value returned from three analogue inputs.
Two of the counters generate ramp waveforms, and a third waveform is created from the sum of the first two. It is an interesting demonstration of the possible audio that can be generated with an Arduino Due or compatible.
Furthermore they've provided details of a small amplifier circuit to connect to the DAC pins on the Due - and heed their notes about sinking and sourcing current from the Due's I/O. Nevertheless, for more explanation and demonstration code visit the website. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.
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