Teletubby is an empathetic elf who cares and understands your inner feeling. At my draft attached below, in order to know how a person feels, I use the force sensor as input data in the beginning. Teletubby will be able to know your mental condition by analyzing the frequency and volume from your answering voice. However, I ended up using a force sensor because I think users could be more interactive with the device.

Category | Physical Interface of Networking . Physical Computing . Physical Installation Design

Tool Used | Arduino (Esp8266) . P5.js