Here’s a cool little sensor product that uses capacitive sensing technology (the measure of minute electrical changes in elecrical capacity caused by objects moving in the immediate proximity of the sensing electrodes). What that means is that large conductive objects like the human body are easily detected. The sensors can not see through metal or other conductive materials as they block electric fields. The Sensacell can be ordered with or without on-board lighting. What’s nice is that they are modular and can be plugged together to make up larger grids for interactive architecture of differing scales.
Sensacell modules have various operation modes applicable for interactive architecture. In autonomous modes, modules perform actions without any interaction with the outside world, eg. they light up and change state when a sensor is triggered. They can also run in a passive mode updated by an external connection.