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PWM stands for Pulse Width Modulation. One of the most important parameters of PWM is the duty cycle. We use PWM for many purposes, some like controlling LEDs or servo motors, as well as, of course, playing the imperial march ;-) You can learn more in the article on the website https://www.rinconingenieril.es/que-e... You can subscribe here https://goo.gl/egCRtg My Twitter: / ringenieril Facebook: / rinconingenieril Instagram: / rinconingenieril G+: https://plus.google.com/+Rinconingeni... Web: http://www.rinconingenieril.es