In the previous sections, we looked at the basics of achieving IoT prototyping with the Arduino platform and an IoT cloud platform. With this basic knowledge, you are encouraged to start exploring more advanced IoT scenarios. As a future inspiration, the following smart retail project idea is being provided for you to try by applying the basic principles that you have learned in this book. After all, the goal of this book has been to show you the light and make you self-reliant with the Arduino platform.

Imagine a large retail store where products are displayed in hundreds of aisles and thousands of racks. Such large warehouse-type retail layouts are common in some countries, usually with furniture sellers. One of the time-consuming tasks that these retail shops face is to keep the price of their displayed inventory matched with the ever changing...