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NulSom NeoPixel WS2812B (WS2811) LED-Leuchtengitter für Arduino uC, 3 x 3 LEDs, adressierbare RGB-LEDs, mit integrierten Treibern : Amazon.de: Gewerbe, Industrie & Wissenschaft
![GitHub - rztio/Arduino-74HC595-LED-Matrix: Basic LED matrix library for an Arduino with a 74HC595 shift register. GitHub - rztio/Arduino-74HC595-LED-Matrix: Basic LED matrix library for an Arduino with a 74HC595 shift register.](https://user-images.githubusercontent.com/12734917/31724317-4efa597e-b419-11e7-9cc8-53ff5d1ed7fd.png)
GitHub - rztio/Arduino-74HC595-LED-Matrix: Basic LED matrix library for an Arduino with a 74HC595 shift register.
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arduino - How many 2N2222 transistors required for 3x3 LED matrix to mutiplex - Electrical Engineering Stack Exchange
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