Back in February, the Foundation published a blog post about Tangram ES which an open source map-rendering engine from Mapzen. Mapzen has now gone one further and developed an example app which displays a three-dimensional map and ties it into an Adafruit GPS HAT. They’ve even provided the files to 3D print a mounting case for the whole thing which includes a 5″ touch screen to control the map. It’s a lovely example of what you can do with the library and all the code is available, so give it a go! NB: You probably need a Raspberry Pi 2 to handle this. Read more here.