why kc868 is super IOT controller for smart home automatio. it can control relay switch in many ways. It can work in LAN or WAN. if no internet , it also can control in local way. KC868 Smart Controller can control by mobile phone APP, PC computer and Google Home or Alexa voice control. It can also connect with sensors, the input ports can trig output relay ON/OFF or send alarm message to user phone.
This video record by KC868-H32 controller.
if you want to buy KC868 controller , you can visit : kincony.en.alibaba.com