He further explains that, with the Arduino Uno, you can remove the reference capacitor from the circuit, and simply use the stray capacitance present in the board and microcontroller, which can be ...

Both the Arduino Nano and Uno can be powered via their integrated USB connectors. This automatically supplies regulated 5V power to the board, allowing you to use any USB-supported power source ...

A team of software engineers and designers released Arduino in 2005 as a teaching tool for graduate students in interactive design, but it quickly caught on in the DIY community.