2 Building the System

To function as a complete system, the doorbell application requires multiple parts – the Bluetooth Click modules, the Cap Touch Click board and the NeoPixel LED Stick – to work together as a whole. This section of the application note discusses each part of the system in the order in which they were created, to allow the reader to understand how they fit together and create the application. Once the reader understands this, they will be able to adapt it as needed.

The microcontrollers and hardware modules described in this section have been assembled by direct wiring on a breadboard prototyping system. The development of appropriate circuit boards and casing for the final application is left up to the reader.