Physical Computing: Switching LEDs with an Arduino or Raspberry Pi
Channel: HomoFaciens
Date: 2017-08-01

Table Of Contents
00:05 Introduction
01:27 LEDs
02:16 Current limits
03:21 Connecting LED and series resistor
04:18 Voltage across LED
06:10 Output impedance
07:27 Switching multiple LEDS - total current
09:25 Sorce and sink current
12:38 Current between GPIOs

The project page:
http://homofaciens.de/technics-physical-computing-switching-LEDs_en.htm