Why choose the Raspberry Pi Zero W? It’s small. It’s cheap. It’s power efficient. It has WiFi and Bluetooth Low Energy (BLE) built in. And it has the same general-purpose input/output (GPIO) header that bigger Raspberry Pis have: the gateway to controlling all sorts of hardware.
It’s easy to build gizmos that use hardware and networking in fun ways. In this book, you’ll build three projects using the Pi Zero W: