How to attach an LED to a micro:bit - teachwithict
led - Resistor requirement for 3.3 V supply - Electrical Engineering Stack Exchange
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How to select Resistor Value for LED with simple calculation|5v,12v,220v, Glow LED|Electronics pro| - YouTube
Choosing the Resistor to Use With LEDs : 3 Steps - Instructables
Don't Burn Out! Calculating LED Current Limiting Resistor | Benc
Guide to LEDs and resistors
Basics: Picking Resistors for LEDs | Evil Mad Scientist Laboratories
Resistors for LED Circuits | Resistor Applications | Resistor Guide
How to Calculate the Value of Resistor for LEDs Circuits?
How to select resistor value for LED with simple calculation (Ohm's Law) - YouTube
ASK AN EDUCATOR! “How do I choose resistors to match a multiplexed led matrix?” « Adafruit Industries – Makers, hackers, artists, designers and engineers!
