Bluetooth Pinger PRO (bluetooth.pinger.pro) on Google Play
This program checks for the presence of people nearby using their bluetooth-enabled devices.If you need to quickly check that a certain group of people is near you, you can use this app to quickly check the presence of these people.Each person may have with itself any bluetooth device. So that its presence can be checked by connecting to it bluetooth device. If the connection is successful, then that person is nearby.For example, you need to quickly check that a group of students came to the session in its entirety. Then you need to quickly ping their bluetooth devices that everyone should carry. If someone is missing, you will know it immediately.This program does not require that the remote device was paired with your phone. Just do not need it to work in the mode of visibility for all. Enough to on the remote device was just enabled bluetooth adapter.You can to smash list of devices by groups, if you need to check the different groups of people.To check whether this program can work on your android powered device, you can first download the free version Bluetootn Pinger, which uses same algorithm of ping the remote device. In free version is not possible to smash device by groups.