LED Complete Basics for Beginners Get 5 PCB's for $5 (plus shipping) - https://www.pcbway.com/ In this video we cover the basic principles of LEDs work and how to use them. We look at the 3 key things you MUST know to work with LED's: Polarity, Forward Voltage, and Current. Knowing the forward voltage and current will allow you to choose the right resistor to keep your LED from blowing up.
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