An IoT gateway is a key device that connects sensors, controllers, and smart devices to the cloud or central systems. It collects, filters, and processes data from IoT devices before sending it to data centers or analytics tools. This reduces bandwidth usage and improves performance. Gateways often support protocols like MQTT, HTTP, and Modbus, making them compatible with various devices. In applications like water management, energy, or manufacturing, IoT gateways ensure reliable, real-time communication between hardware and software platforms. Visit: https://www.karikala.in/blog/iot-gateway/