I decided to put an ultrasonic distant sensor on the cat litter box to send me a notification whenever my cat uses the litter box. I created an Applet on IFTTT to send me a text message when the cat is less than 10cm close to the litter box. When I tried to put it on the litter box, I realized my cat will play with it and ruin the sensor, so this is not very practical.
The work that inspired me is an installation I found online a year ago. Unfortunately I couldn’t find it now. It is an Arduino based project with some LCDs and speakers. It used the Twitter API to capture all tweets that have the word “I am” and showed it on LCDs and played in the speaker. I think it is interested to see how people identified themselves and sometimes say it unconsciously.