In this chapter, you learned about how to interact with small screens in the form of an OLED display. We have learned how to display text on the screen and how to program a simple clock. We have also played around with GPS receivers and how to gather information, such as the position of the receiver, speed and altitude from satellites. Then we took a look at how you can design your own watchcase.

There is still tons of fun stuff you can do with displays and if you want to learn more I suggest you check out the example code that comes with the SSD1306 library, which you can find under examples in you Arduino IDE if you have installed the library. For more information about the MTK3339 GPS receiver you can try searching online for the product name and datasheet. Most electronic components are supplied with a datasheet that contains detailed information about it, but may be tricky to read if you are a newcomer.

A good place to start when developing projects in the future is to think of...