Sawtooth Waveform on Bald Engineerhttps://www.baldengineer.com/tag/sawtooth-waveformRecent content in Sawtooth Waveform on Bald EngineerHugoen-USTue, 05 Apr 2016 23:25:06 +0000Sawtooth waveform with the Arduino Due's Built-In DAChttps://www.baldengineer.com/sawtooth-waveform-with-the-arduino-dues-built-in-dac.htmlFri, 08 Feb 2013 00:36:18 +0000https://www.baldengineer.com/?p=1533Users of the ATmega328 based Arduino boards will recognize that the analogWrite() function doesn’t actually do anything analog. It just sets the duty cycle of a pulse width modulated (PWM) signal. The (new) Arduino Due board, which I have had limited time to play with, actually sports two Analog DAC channels. Using a very simple for() loop, it is possible to generate a sawtooth waveform using these channels.

Sawtooth waveform with the Arduino Due's Built-In DAC