ELEKIT sells a cute toy grasshopper with solar panels. I used a door vibration sensor, a temperature/humidity sensor, acceleration sensor, and human detection sensor. Also I added a song module taken from Eric Carl’s ‘The Very Quiet Cricket’. This one sends the atmosphere information with BLE and controls home appliances with ECHONET Lite. This development was fun.
Conceptual washroom that allows communication between a person inside and outside. They can exchange messages through no-touch buttons, freehand drawing, or some weapons to attack a person behind the door.