Project #1:

1. Observation

Night light - reactive to presence, ambient light, sound

motion

→

switched user interaction to proactive and light turning on to reactive

sound & motion

2. Research

1) Take a closer look at the system for some time and play with it by trying different actions. What did you find out? What is the most common error of the system?

reactive to motion

common error: duration of light depends on motion rather than presence

→ light will turn off even when present

vs. sound

common error: detection of sound through volume(decibels)

→ difficulty differentiating between human and non-human sounds

2) Search relevant information online. You can probably find tutorials or datasheet of the system or adjacent. Consider these questions: Which sensors are being use in the current systems using? How are they programmed? How are they embedded on the device? How do they decide when to activate (flushing, dispensing, making sound…)?