big data transmit and switch mac address

[CFF.K]

Hi, I have some question need your help.

I use SDK 14.0.0, S132 and peripheral code. and then I define two peripherals of function in the nrf52.

Q1: My product needs bonding with two mobiles because I need two mobiles could control our product at the same time. But some brand of mobile happens weird situation. The same mobile will connect nrF52 twice when nrf52 do advertising twice. So I think to switch mac address in different advertising mode, Whether mac address types no difference to me. I don't know which mac address type is best for me. Do you have some suggestions for me? Or if you have other ways to solve my problem, could you help me?

Q2: The transmits data more than 20 bytes in our product. So I start to search ATT MTU and DLE function, but I still don't understand the difference, and I don't know how to do program in the nrf52. Do you have the explain this function and example code for this function?

[MartinBL]

Hi,

Q1) It sounds like the easiest fix would be to change your app to not connect multiple times to the same device?

Q2) Here is good explanation of the difference between DLE and MTU. The Throughput example allows you to play around with DLE and MTU and shows you the effect.