How do i distinguish between many ble devices advertising same name?

[SumitS]

Hi,

I am developing a glucose application using nrf51822 chip. Now i want to go for mass manufacturing. All my devices are advertising the same name. I want to identify a particular device while scanning. How can i distinguish between multiple devices advertising the same name? Does each Nordic chip has some unique identification number?

Thanks & Regards, Sumit

[Håkon Alseth]

Hi,

All devices will have a random generated BLE address, even if they have the same advertising name. This address is derived from the FICR register, and is set during our production. You can read more about this here: devzone.nordicsemi.com/.../

Cheers, Håkon

[Håkon Alseth]

In iOS, the API does not allow you to get the BLE address directly due to privacy reasons: stackoverflow.com/.../can-get-mac-address-of-peripheral-after-pairing-in-core-bluetooth-ios

In this case, you need to add manufacturer specific data or alter the device name to distinguish the devices.