I'm looking at designing and building a system to detect the position of an object in a room. Two dimensions is fine. I'm thinking the object could send a short ultrasonic pulse (a few cycles at 40kHz) to be picked up by a minimum of three listening devices (for triangulation) and the listening devices would talk to each other (maybe 868 MHz) to determine the position and pass it back to the object.
I feel sure this has been done before - any advice on choice of hardware, processor etc most welcome.
I feel sure this has been done before - any advice on choice of hardware, processor etc most welcome.