Maximum notification frequecy

[BLE_Full_Stack]

Hello All,

Chip :  nrf52832

Mobile App : BLE scanner

Requirement : We want to transfer 20 Bytes(or more) at every 8 ms. Is it possible?

I have tested it :

No of Bytes : 12
Connection Interval : 7.5 ms
Data transfer @ 1 sec            : Done, No data loss
Data transfer  @ 500 ms         : Done, No data loss
Data transfer @100 ms          : Done , No data loss
Data transfer @ 40 ms          : Done , No data loss
Data transfer @ 10 ms          : Data transfer was possible, but we were not manage to check it to BLE Scanner, it was stopped.Application is running but i can't see data in BLE Scanner

Please can anyone confirm on this?Is it possible for 8 ms?

[haakonsh]

The nRF52832 with S132 can easily handle 20 byte payload at 7.5ms connection intervals, given its only connected to a single BLE link. The bottleneck in your application is most likely the mobile phone as Anroid/iOS limits the connection interval to 20ms i believe. 

Why do you need 8ms latency, what is your use-case?