We are already familiar with the basic parts required for building a prototype. The two new aspects to consider when building a standalone project are an independent power source and a project container.
Figure 1: Typical parts of a standalone prototype
As shown in the preceding diagram, typically a standalone device prototype will contain the following parts:
- The device prototype (Arduino board + peripherals + all the required connections)
- An independent power source
- A project container/box
After the basic prototype has been built, the next consideration is to make it operable on its own, like an island. This is because in real-world situations, you will often have to make a device that is not directly connected to and powered from a computer. Therefore, we will need to understand the various options that are available for powering our device prototypes...