kash791

Strange, Photo detectors would need to be wired. So more difficult to manage.

No the QR code won't spoil the aesthetics. Viewers aren't limited to the perimeter. They can travrl about the model. However the Triggering of the QR code will be done by only one viewer.

Swansont, Hi, Yes i do have a line of sight and i would standing out of the area. HI, Frank, Actually what i want to build is a sand model of a map on ground. i want to point a laser/rf reader or qr reader or something else to a particular feature like a town and data of the town comes up on computer screen. when i point it at a different feature then details of that feture needs to come on screen. thanks

Hi Strange, but how can i have 100 bluetooth beacons. i need to place 100 such sensors in about 100 ft area. and need to read/activate anyone at a time, the one selected should in turn open its respective pdf file on computer.

Not bill board size but actually small may be few inch size.. And readable/sensed from 25m using another device.. Which then can trigger a PC to open a pdf file..

Hi, I need to some kind of sensors/tags which can be placed outdoor. The same needs to be read from about 25 m. (There will be need of setting multiple sensors in proximity, so the reader had to be a pin point and accurate system.) On reading it should open particular pdf file on computer.