Dida information was founded in 2015, specializing in the development of electronic products of the Internet of things. It has developed 4G mqtt gateway wg10, Ethernet mqtt gateway wg20, nbiot mqtt gateway wg01, 9-serial port mqtt gateway wg40 with serial bridge function, mqtt gateway wg50 with 7-inch screen configurable design, nbiot meter and other products. It provides the upper computer setting software and management platform to realize the setting of serial port parameters, protocols, variables, mqtt server, subscription topic and publishing topic.It can connect with alicloud, onenet, etc.