I need to put multiple bluetooth modules in various places so that they trigger something on a smartphone.
Of course the smartphone has to grant access to the bluetooth device at some point, but I would like to avoid this by stating that every bluetooth module that is broadcasting "my secret key" must be handled as virtually the same device. That way the user does not have to accept the pairing each time he/she encounters one of my devices.
Does the bluetooth specification allow me to do so, or is the authentication based on the unique address of each chip ?
EDIT : From a pure design point of view, I plan to use this chip together with an ATMega and all the usual stuff that are needed to power up the board (battery holder + DC/DC regulator + buffer capacitors, pullup resistors, etc.), but that is not relevant for this question as I am still considering the feasibility of the project.