Columba is an end-to-end, end-to-cloud IoT solution that integrates various device platforms. The system provides MQTT service to read the status and control of all devices under the Columba system, allowing you to view the information and control from anywhere and everywhere. It also provides WebAPI and JSON Post mechanism, which can proactively notify more than one network address when the status of the device changes. It is recommended to use the MQTT method, which is more efficient and immediate.