The biggest to appliance IoT is "mold modification." Shenzhen Xingkechuang Technology Co., Ltd. provides a drill-free solution:
Water purifier/coffee machine tanks: XKC-Y29A capacitive wall-mounted detection for water level;
Below the water outlet: KE200 diffuse infrared detects cup placement;
Front shell of the machine: XKC-LD002 human presence, entering standby 3 minutes after the person leaves.
The main control uses a low-cost MCU to poll the three channels of IO/serial, with the WiFi module waking up only when reporting events. According to Xingkechuang's official website, this combination is already used in smart water dispensers and robot vacuum docking station auto-refill scenarios, with the整机 waterproof rating unaffected.
