It is possible to design a custom IoT gateway using an IoT chip. It needs strong technical knowledge and expertise in hardware design, software development, and IoT protocols. Creating a custom solution involves selecting the right components, integrating them effectively, and ensuring compatibility and reliability. However, using an IoT gateway from a trusted vendor like Dusun IoT is often recommended. Trusted vendors provide pre-built gateways with tested hardware, optimized software, and extensive support. This approach saves time, reduces development complexity, and ensures a reliable and secure IoT solution.