问题
I'm attempting to use a classic bluetooth chip to possibly send out signals to another device with a classic bluetooth chip.
Now would it be possible to create a beacon with classic bluetooth?
回答1:
You certainly can. A Bluetooth LE beacon typically sends out regular advertisements with a unique identifier that can be picked up by a receiving device (typically a mobile phone) doing a Bluetooth LE scan. Since you can also send out advertisements and do scans with classic Bluetooth, you could build the same thing with this technology.
The main disadvantage is that classic Bluetooth uses much more power, both for transmitting the beacon signal and more importantly for doing the scans. So if you are using mobile phones to detect the beacons the battery drain will be much higher than if using Bluetooth LE.
来源：https://stackoverflow.com/questions/24786700/is-it-possible-to-create-a-beacon-with-classic-bluetooth