BLE transmission success rate after establishing a connection

[hmw]

Hi,

Recently I am using BLE for transmission on zephyr on nrf52840
When my peripheral establishes a connection with central, the subscription is also successful
My peripheral uses notify to transmit to central, is its success rate 100%?
I count the number of TX in peripheral and the number of RX in central
The result is that the number of TX and RX are the same, so my PDR (packet transmission success rate) is 100, which makes me confused whether it is too perfect
Want to ask if this is reasonable?

In addition, instead, the central uses the write_without_resopnse command to the peripheral and will not receive 100%

This is really strange. Notify does not care whether it will respond or not. Why does it have a 100% success rate?

Thanks in advance,

Poyi

[Einar Thorsrud]

Hi Poyi,

For how long did you test and in what kind of environment? You should always expect some packet loss in the real world, but if you are testing with devices close by and with little interference, you may not see any packet loss during a shorter session.

Einar