BASIC CIRCUIT DIAGRAM OF ARDUINO UNO R3 - EasyEDA open source hardware lab
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![EasyEDA | Arduino Uno 3x3x3 LED Cube Shield PCB Layout [Download in description] - YouTube](https://i.ytimg.com/vi/mky_eAJIGOY/maxresdefault.jpg "EasyEDA | Arduino Uno 3x3x3 LED Cube Shield PCB Layout [Download in description] - YouTube")
EasyEDA | Arduino Uno 3x3x3 LED Cube Shield PCB Layout [Download in description] - YouTube
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