This feature isn’t exclusive to the Leonoardo, as [Michael] explains in a build he sent in – the lowly Arduino Uno can also serve as a USB HID keyboard with just a firmware update.

[Damian] used the lowly ATmega16u2 to generate the video timing. The 16u2 is normally used as the Arduino Uno’s USB interface. The only external hardware needed is a single 120 ohm resistor.

Read more: Battery Brands Ranked From Worst To Best The Arduino Uno Rev3 is the third revision ... The Rev3 has a single serial connection, shared by the USB port and the RX/TX pins.

Apart from understanding the Arduino's code language, one of the most confusing parts about the platform — especially for beginners — is picking the right board to use in a project. Sure, it ...

What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project ...