Eclipse IoT provides a complete Java stack to build IoT gateway applications, including support for MQTT, CoAP, LWM2M, and remote configuration and management via Kura and OSGI. With the programming tool Reactive Blocks you can connect these Eclipse technologies by plugging together Java-based building blocks graphically. This makes it much easier to build new applications, or understand and adapt existing ones. This talk shows you how we implemented the software for the Eclipse IoT Car. The demo takes advantage of MQTT, CoAP and Kura so you can experience these technologies in action.