nrf51822 ble s110 scan another device get RSSI value

[Peter]

Hi everyone : I have some questions about nrf51822 ble S110 ,I have two ble device ,both device used S110,is it possible use the first device to scan the second device to get the RSSI value?

[Hung Bui]

@Peter: The S110 (peripheral) stack is not made to be able to scan for a device. You can think of having one device running S120 (central stack) to scan for the other device running S110. If you want the central device be able to be peripheral also, you can think of using S130 (central+peripheral stack).

Alternativelly, if you don't want to use S130/S120, you can use S110 and access radio directly using timeslot API to scan for packet with S110, but it's more complicated. You can have a look at this example.

[Hung Bui]

1. Yes, it can
2. To be able to let other device detect and read RSSI one must advertise. To do that you can use S130 that can advertise and scan at the same time. Or you can use S110 and timeslot API so that you can do scanning manually. Here is an example.