In this chapter, you will use what you've learned throughout the book to build a complete, practical application. We will cover the following topics:
Until this point, we've only looked at relatively simple program examples, without any real scope to them. Let's take some time to build a more complete program that actually accomplishes a practical task, a weather station.
Let's start with the hardware. We'll use a HTU21D I2C relative humidity sensor (for example, https://www.sparkfun.com/products/12064), as well as a BMP183 SPI pressure sensor (for example,