Sometime It is very convinience that one toilet is occupied or not. There is a human detect sensor like EKMC1601111. We create html that showing lavatory signal (like in airplane ) by collaborating with this sensor.
RPLIDAR is a low cost Laser Scanner. It works like a Radar. One is connected to an obniz. And draw results on HTML.
When pouring with the M5StickC, connected to the remote obniz tilts and takes into consideration.