After the connection is established, the Peripheral immediately sends data to the Central , which sometimes the Central does not receive the data.

[Xphiting]

Hi,

On the Peripheral , after establishing a connection with the Central , start the timer to send data to the Central  (the timer interval is set to 500ms and stop after sending the data). Sometimes, the Central  does not receive data from the Peripheral .
What is the reason?

Perhaps there is some other way that the Peripheral can send data to the Central immediately after a connection is established?

Thanks.

[run_ar]

Hi,

Could you try to capture a sniffer trace of the communication to see what is happening on-air?

https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE

Could you also provide some information about which peripheral and Central you are using? (HW and SW version).