arduino uno - LED series Resistor- Noob question - Arduino Stack Exchange
Why is my red LED dimmer without a resistor than with a 100 Ohm resistor? - Electrical Engineering Stack Exchange
Why do LED circuits in a parallel series need a resistor? - Quora
Basic LED Circuit with TinkerCAD — Digital Maestro Magazine
Exterior led resistor fix – GoWesty
Make a Pushbutton Without a Resistor - Instructables
L1: Turning on an LED - Physical Computing
Picking Resistors for LEDs - Make:
Battery and LED without resistor | LEDnique
LED Resistor Values | Current Limiting Resistor
Hi everyone, I wanted to get orange color on rgb led strip without using controller, so I used resistor after green pin to lower green tone. It worked good for 1 meter
Blue light LED works without any resistor and doesn't burn out. Why? - Electrical Engineering Stack Exchange
How To Light Up LEDs Without Resistor Math - YouTube
No Resistor LED Strip 12V | SMD2835 LED Strip | Smile lighting | LED flexible strip light, rigid strip
Light-Emitting Diodes (LEDs) - SparkFun Learn
Driving an LED with or without a resistor – tinkerlog