I couldn't find anything really useful quickly about picking resistor values and transistors to drive LEDs at the right current so I put together a blog post with a simple circuit and explanations of the various current and resistor calculations to help non-engineers. Arduino:figuring out transisto…

Single transistor LED switch

Topic		Replies	Views
Transistors and Resistors General Electronics	18	6083	May 6, 2021
LEDs und Transistoren Deutsch	27	8141	May 6, 2021
UNO controlled LEDs: Resistor Question General Electronics	10	4840	May 6, 2021
Help with transistor and resistor selection for LED array LEDs and Multiplexing	13	5481	May 6, 2021
Help check my (basic) understanding General Electronics	20	6539	May 6, 2021