Hello to everyone, just got here
I will try to explain what I need in the simplest way possible. Im designing a desk lamp, and we (me and the team) have come up with the idea of replacing a button with something more fancy. The lamp has an “O” shape, and the ligh comes form the inner side of the O. We were thinking of having some kind of sensor that detects when a human hand its placed in the middle, and that triggers the swich on/off.
What im looking for is the simplest and least bulky way of detecting that presence of the hand. Something that detects light, blocking of light, sound, anything. I have some ideas, but I want to hear your thougts. We are looking for something small, simple, and well, cheap
The “O” part of the lamp will be made of concrete, and a base at the bottom made of thermoformed plastic (its a Technology class project for the university, Im studyng industrial design). An arduino nano and a bluetooth board will be located inside the housing … Its one of the requirements that proffesors have determined. So we can use some kind of really small sensor in the “O” (we can´t drill or make more room there) OR we can put something bigger in the housing.