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PWM - Pulse Width Modulation - In this video I explain in a technical and extensive way Pulse Width Modulation, where the various concepts of Duty Cycle, Frequency, Period are covered and then we make a practical circuit with an LED Dimming using Arduino. Voluntary donation: You can invite me to a Peruvian Pisco Sour by making a donation that will be used to cover the costs of new electronic components for the new projects on my channel: https://www.paypal.com/cgi-bin/webscr... These other videos may interest you: RGB LED Strip - What it is - How it works • RGB LED Strip - What it is - How it works HC-SR04 Ultrasound Sensor - What it is and How it works • HC-SR04 Ultrasound Sensor - What it is... Measure Distance by Ultrasound - HC-SR04 Sensor • Measure Distance by Ultrasound - It... Follow me on... Personal website: http://www.humbertohiginio.com Facebook: / humberto.higinio Twitter: / hhiginio