Notification receive error

[hrms]

I use two nRF52840 to send notifications every second. Analysis using a logic analyzer revealed that the reception interval had strange variations. What is causing this?　Why is there a gap at 1 second from the reception?

connection interval 10ms.

[Simonr]

Hi

If you just want to send data, and not worry about connection events/intervals, wouldn't it be easier to just have a beacon transmit the data every X second, as it won't have to wait to connect until it transmits data.

To avoid any BLE device to be able to read the data transmitted by your beacon, you can use a whitelist so that it will only advertise to your central. This will, of course, not work as a notification, as notifications require responses from the central, which a beacon is not able to receive.

Best regards

[hrms]

I see.

Am I using broadcast mode instead of connection?

I'll try．