Change from BLE5 long range to BLE4 on the fly?

[Avi]

Using nrf52840, is it possible to change advertisement from BLE5 long range to BLE4 on the fly?

i.e. interval of 2 sec, first BLE5 long range, than BLE4 and so on 

[Simonr]

Hi

This should not be a problem, but you will have to stop advertising in order to change the PHY from Coded_PHY to 1MBPS_PHY when going from long-range to BLE v.4.x and back.

You can check out our long-range just works blog post, where this is done by pressing buttons on the DK, but you should be able to set a timer to take care of the switch. You can use the source code from the blog as a reference.

Best regards,

Simon