The SensiMote is an interactive remote control for an air conditioning system. It is activated by intuitive gestures: if we feel hot and we want to cool the room, we simply blow on it. The remote will “feel” the cold and will pass what it “feels” to the A/C. The longer we blow on it, the bluer it becomes and the colder the room gets. If we feel cold and we want to heat the room, we simply rub Sensimote’s fuzzy side. The remote will “feel” the heat, and will pass what it “feels” to the A/C.The more we rub it, the redder it becomes and the hotter the room gets.

To turn off the A/C, the SensiMote should be laid down to Sleep on its left side (not the rubbed side) for at least 3 seconds.


The main idea for this product was to question the way we using certain devices. Perhaps there is a better and more convenient way to use them? We chose the air conditioner because we think that the current mental model with which we control it is wrong, and the numeric scale that is related to temperature is not right. Those numbers are not really a good description of the sensation we are after (also, 22˚ is not the same in different operation modes). With Sensimote, we don’t care anymore about a number that is shown on the remote control – from now on, we only care about what we FEEL, and this is what we indicate to the remote.



The remote

For the “rubbing” gesture we used 3 pressure sensors (FSRs) connected in a row and when the user press all 3 of them together and changed the main pressure from one to another, the remote “senses ” the heat. We did it this way to prevent from the A/C to turn the heat on in case that someone is simply touching it with no intention of doing so.

For the “blowing” gesture we used a wind sensor the can sense when a wind is blowing through it.For the “sleeping” function used a tilt swich (mercury switch) that needed to be closed for 3 seconds. We connected those and multiple LEDs to Arduino.The SensiMote runs on a 9v battery.

We connected the heat ventilator’s functions to Relays that were controlled with Arduino. We used Xbee for the communication between the “A/C” and the SensiMote. We connected one to SensiMote’s and the other to the “A/C” through the Arduinos.



David Budzik, Guy Eizon and Shimon Aviram