Bluetooth LE proximity sensor

[Chema]

Hi,

I´m looking for a Bluetooth low energy proximity sensor with this (or similar) characterisics:

• One main (receiver) module and many secondary (transmitter) modules.

• The secondary modules should have a programmable ID number.

• When the secondary modules are 20 meters near or less to main module, this one should identify which secondary module is and indicate the presence of it.

Do you know what I can use with this characteristic?

Thanks..

[RK]

That sounds pretty much exactly what a beacon is. Your transmitters can be beacons, your receiver just needs to scan for beacons and flag when they are within range using RSSI. Beacons have a facility to give each one a unique ID even though they all share one basic beacon ID value.

If that's all you need, writing the code is about a day's work.