nRF52840 to acts as central and peripheral simultaneously

[ps_anu]

Hi , everyone 

i want nRF52840 to acts as central and peripheral simultaneously . how can i achieve this ? i  have seen in website  nRF52840 can concurrent upto 20 link (multilink). how to do this ? which example i have to work out .

Thanks in advance

saral 

[Amanda Hsieh]

Hi, 

i want nRF52840 to acts as central and peripheral simultaneously . how can i achieve this ?

 Please see this post.

 

i  have seen in website  nRF52840 can concurrent upto 20 link (multilink). how to do this ? which example i have to work out .

 SoftDevice S132 v4.x.x, S140 v5.x.x and later supports up to 20 concurrent connections in total. The connections can be any combination of central and peripheral.

A device can have several peripheral links.

The multilink example can be modified to support 20 connections, but currently it supports 8.

In sdk_config.h, you can modify NRF_SDH_BLE_CENTRAL_LINK_COUNT for the maximum number of central links.

You might want to see this post. 

Best regards,

Amanda

[ps_anu]

hi ... Amanda Hsieh 

 i have tried with multilink example , central is scanning and but not getting connect to peripheral device 

[awneil]

ps_anu said:

central is scanning and but not getting connect to peripheral

Is it seeing the advertising?

[ps_anu]

yes . 

[Amanda Hsieh]

Hi, 

BLE Multi-link Central: You can find the source code and the project file of the example in the following folder: <InstallFolder>\examples\ble_central\ble_app_multilink_central

BLE Multi-link Peripheral: You can find the source code and the project file of the example in the following folder: <InstallFolder>\examples\ble_peripheral\ble_app_blinky

The BLE Multi-link Example requires at least three boards to verify that more than one link is active. The central device can have a maximum of 8 concurrent connections to peripheral devices.

Do you modify the example code? If so, what did you do?

Could you describe the LED status on Central and Peripheral board?

-Amanda