In Japan, regional shopping districts are on the decline because residents prefer suburban-type large-scale shopping stores. Such issues can be addressed in the context of the “Smart City”, of which functions depend on the information and communication technology (ICT). We established the “KIT Digital Signage Project,” which aims to help the regional stores around the Kanazawa Institute of Technology (KIT). In our project, we developed a digital signage system that is low-cost and easy to introduce in small stores. We conducted an experiment to evaluate the effect of our system. During the experiment, store-advertising movies were shown on digital signage terminals, which were placed in each store. The total average watching time and audience rate of our system were 24 s and 50%, respectively. In addition, we investigated the educational aspects of our project. The students in our project could master movie production in a shorter time when compared against learning it as an ordinary classroom subject. The future plans of our project are also discussed.