Using NPN transistor for either load control (LEDs) or digital signal (WS2812) - General Electronics - Arduino Forum
Working of Transistor as a Switch - NPN and PNP Transistors
NPN Transistor With Three LED's as a Switch | IamTechnical.com | Electronics basics, Transistors, Simple electronics
Transistor Basics
BJT Driving an LED - Above or Below? - Electrical Engineering Stack Exchange
b>Electronics Components: Use a Transistor as a Switch</b> - dummies
How to Use a Transistor as a Switch | Nuts & Volts Magazine
How to Use an NPN Transistor as a Switch – Fiz-ix
Single LED single transistor circuit not working - Electrical Engineering Stack Exchange
Silverlight Developer » Blog Archive Simple LED and Transistor Switch - Silverlight Developer
64.63 -- NPN transistor switch
Using Transistor as a Switch | ermicroblog
Working of Transistor as a Switch - NPN and PNP Transistors
Driving LEDs on higher voltage | LEDnique
switches - Simplest LED-transistor switch LED being on in switch's off-state - Electrical Engineering Stack Exchange
Transistors - SparkFun Learn
Transistors 101
Transistors - SparkFun Learn
bjt - How to replace a green LED with a red one in a simple transistor switch? - Electrical Engineering Stack Exchange
How to Use an NPN Transistor to Switch on an LED - Electronics for Absolute Beginners - YouTube
Using Transistor as a Switch | ermicroblog
NPN transistor switch
led - Why is my transistor accepting power from a base? - Electrical Engineering Stack Exchange
