Arduino Mini-Drone Lesson Part 2: Controlling Motors with an Arduino and a Transistor

This video tutorial explains how to use a transistor in an Arduino circuit to control a motor. It begins with an introduction to transistors and their necessity in circuits requiring more current than an Arduino pin can provide. The tutorial then demonstrates building a simple circuit with a potentiometer and LED, explaining the concept of pulse width modulation (PWM) to control brightness. The video progresses to replacing the LED with a motor, using a transistor to manage the current from an external battery pack. Finally, it covers how to connect and control multiple motors using transistors.

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