ethernet or wifi relay module controller work in local LAN network by android app , not need cloud server and internet. just mobile phone , KC868-Hx smart controller connect with same router. Then use controller’s IP and port to control every relay switch. KBOX also open source, you can download the android studio project code file in KinCony’s github.
KBOX source code Github download: https://github.com/hzkincony/Ethernet-WiFi-Relay-Switch-KBOX-Android-APP-LAN
Subscribe to KinCony IOT for weekly tech amusing DIY videos hosted by XuWei! We will continue to develop IOT and smart control system and make video lessons provide smart solution products and service around the world.