How to configure bluetooth 5 to bluetooth 4 in nrf52832

[srvd]

Hi,

I have recently started working on nrf52832 chip, don't have much knowledge on that. I have two chips (nrf52832) one is running on bluetooth version 5 and other one is version 4. Now I want to scan peripheral device (Version 4) by using central device (version 5), however central one is unable to detect the peripheral one.

Please suggest how can I configure version 5 chip to detect and connect second chip having bluetooth version 4.

please find below the device details:

nrf52832 DK (bluetooth version 5)
nrf52832 bluetooth beacon tag (bluetooth version 4)

Using SDK 14.2.0

Thanks

[rraa]

You can update software. If you update beacon tag's software (Bluetooth LE) central device connect your second chip. 

[srvd]

Thank you for quick response. 

We are not able to flash in beacon tag. So we are trying to configure nrf52832 DK to bluetooth version 4 as a central device, Please suggest how can we downgrade from 5.0 to 4?

[rraa]

You have only one way for solution, this is firmware update! If you update firmware (your SoC support Bluetooth LE) problem will solve.  

[srvd]

Thank you for responding.

[Kenneth]

Hi, have you verified that your "nrf52832 bluetooth beacon tag" is observable by a phone? Just to rule out any hardware issues on the beacon.

There should be no problem to scan for v4.x devices, what parameters are you using when calling sd_ble_gap_scan_start() on the scanner? For instance make sure to use BLE_GAP_PHY_1MBPS for scan_phys and BLE_GAP_SCAN_FP_ACCEPT_ALL for filter_policy.