nRF52840 to acts as central and peripheral simultaneously

RE: nRF52840 to acts as central and peripheral simultaneously

Amanda Hsieh — Mon, 20 May 2019 08:27:51 GMT

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

RE: nRF52840 to acts as central and peripheral simultaneously

ps_anu — Sat, 18 May 2019 05:34:31 GMT

yes .

RE: nRF52840 to acts as central and peripheral simultaneously

awneil — Fri, 17 May 2019 13:33:08 GMT

[quote userid="74848" url="~/f/nordic-q-a/47325/nrf52840-to-acts-as-central-and-peripheral-simultaneously/187683"]central is scanning and but not getting connect to peripheral[/quote]

Is it seeing the advertising?

RE: nRF52840 to acts as central and peripheral simultaneously

ps_anu — Fri, 17 May 2019 12:51:20 GMT

hi ... Amanda Hsieh

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

RE: nRF52840 to acts as central and peripheral simultaneously

awneil — Thu, 16 May 2019 10:39:03 GMT

The multilink example shows you how to manage multiple links.

So you take that, and use it to make your Peripheral+Central manage multiple Peripherals & Centrals.

Are you still trying to invent your own Mesh?

RE: nRF52840 to acts as central and peripheral simultaneously

ps_anu — Thu, 16 May 2019 10:29:30 GMT

no no ... i want to acts as peripheral and central simultaneously , i need connect two central&peripheral combination device and 10 peripheral device , these device want to interact with each other . so how to connect the multi peripheral to central & peripheral device

RE: nRF52840 to acts as central and peripheral simultaneously

awneil — Thu, 16 May 2019 10:16:11 GMT

[quote userid="74848" url="~/f/nordic-q-a/47325/nrf52840-to-acts-as-central-and-peripheral-simultaneously/187485"]how to connect to multiple peripheral and one central[/quote][quote userid="77782" url="~/f/nordic-q-a/47325/nrf52840-to-acts-as-central-and-peripheral-simultaneously/187408"]The multilink example [/quote]

RE: nRF52840 to acts as central and peripheral simultaneously

ps_anu — Thu, 16 May 2019 10:13:20 GMT

thank you for your response Amanda . I have tried the central & peripheral example , i can able to connect only to one device (one peripheral ) how to connect to multiple peripheral and one central , i tried with the example LE secure connection multirole example, device are connecting using matched uuid , how to change uuid if i want to connect with ble uart instead of heart rate service ,how to modify the program

RE: nRF52840 to acts as central and peripheral simultaneously

Amanda Hsieh — Thu, 16 May 2019 06:42:52 GMT

Hi,

[quote user=""]i want nRF52840 to acts as central and peripheral simultaneously . how can i achieve this ?[/quote]

Please see this post.

[quote user=""]i have seen in website nRF52840 can concurrent upto 20 link (multilink). how to do this ? which example i have to work out .[/quote]

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

RE: nRF52840 to acts as central and peripheral simultaneously

awneil — Wed, 15 May 2019 13:53:57 GMT

[quote userid="74848" url="~/f/nordic-q-a/47325/nrf52840-to-acts-as-central-and-peripheral-simultaneously"]which example i have to work out[/quote]

Have you actually looked at the examples available in the SDK?

infocenter.nordicsemi.com/.../examples_ble_cen_per.html