To connect wise-4012 to WISE-PaaS by MQTT, please refer:
How to upload data to WISE-PaaS via iSensing MQTT
https://support.advantech.com/support/KnowledgeBaseSRDetail_New.aspx?SR_ID=1-1UFFYTQ&Doc_Source=Knowledge+Base
If using other functions of wise-4012 , please refer:
Manual
https://support.advantech.com/support/SearchResult.aspx?keyword=wise-4012&searchtabs=BIOS,Certificate,Datasheet,Documentation,Driver,FAQ,Firmware,Installation,Manual,Online Training,Software Utility,Software API,Software API Manual,Utility,3D Model,Quick Start Guide,Reference,SDK&select_tab=Manual
other FQA
https://support.advantech.com/support/SearchResult.aspx?keyword=wise-4012&searchtabs=BIOS,Certificate,Datasheet,Documentation,Driver,FAQ,Firmware,Installation,Manual,Online Training,Software Utility,Software API,Software API Manual,Utility,3D Model,Quick Start Guide,Reference,SDK&select_tab=FAQ