Methods of Communication

Since the communication between IoT devices is mostly a black box to most users. This leaves a lot of room for imagination of the methods they communicate to each other without letting humans be aware. We first made sure to embed the messages in devices’ normal daily activities. Then we examined how a minor twist of the normal behaviors can symbolize different hidden messages and the change of recipient. 

We experimented with morse code, physical traces (e.g. a roomba leaves dust piles in coded patterns), key word, pitch/tonality change, spectrogram etc. 

Since our intention is only to hide from the user not the audience watching the video, we expect our secret messages to be not too obscure for the audience to comprehend. We finally decided to use morse code and key words as the methods of communication to address the issue.