He managed to find a few good deals on electronics components online, including and Arduino Uno, a GPS module, and a TFT display. In order to get the map images on the device, [middelbeek] has to ...

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.

Among all the Arduino boards, the Uno is most folks' go-to choice ... four as seen in this basic example code or by using the map() function, as you can see in this Analog In, Out Serial sample ...