Science, technology, engineering, and mathematics (STEM) education plays a fundamental role in achieving the 17 United Nations Sustainable Development Goals. STEM education awareness can be enhanced through engaging workshops that allow students to appreciate how the Internet of Things (IoT) can be applied to increase convenience and productivity in daily tasks and in industry. This article presents a model for a secondary school-based STEM workshop that incorporates the theoretical and hands-on learning for IoT-based smart farming technology. The workshops served as an interactive learning platform for students to appreciate the connections among 5G wireless networks, the IoT, and smart farming.