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Arduino – ArduinoBoardUno (EAGLE files and schematic posted) « Adafruit Industries – Makers, hackers, artists, designers and engineers!
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Electronics-Salon 10x Prototype PCB for Arduino UNO R3 Shield Board DIY. by CZH-LABS: Amazon.com: Industrial & Scientific
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DIY Soldering UNO R3 PCB Board ATMEGA328 Development Board For Arduino UNO R3 | Sharvielectronics: Best Online Electronic Products Bangalore
![PCB layout of Arduino board (Top side on the left figure and bottom... | Download Scientific Diagram PCB layout of Arduino board (Top side on the left figure and bottom... | Download Scientific Diagram](https://www.researchgate.net/publication/318283686/figure/fig4/AS:513729730813956@1499494120540/PCB-layout-of-Arduino-board-Top-side-on-the-left-figure-and-bottom-side-on-the-right.png)