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.

What new insight or understanding did you gain from this video?