Disclosed herein are related to a device, a method, and a non-transitory computer readable medium for controlling building equipment. In one aspect, disclosed is a mobile gateway that receives a user input to change a status of a device of the building equipment. The mobile gateway device generates a request action message indicating the user input based on an application programming interface of the mobile gateway device. The request action message conforms to a building automation and control network (BACnet) protocol. The mobile gateway device transmits, through an interne protocol network, the request action message conforming to the BACnet protocol to a BACnet controller. The BACnet controller operates the device according to the request action message conforming to the BACnet protocol.