How send message to all from peripheral to peripheral in the multiperipheral example?

[Renato Silva]

I am trying to create a network mesh using the multiperipheral example.

In the original version the communication is possible only:

central >> peripherals peripferals >> central

Ans now I wanna sent som messages peripheral to peripheral.

For this I adapted the led_status_send_to_all method but I have a problem.

._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol ble_lbs_led_status_send (referred from main.o).

I already copy the ble_bs_c.c to BLE Services folder.

Is it possible to do what I am doing or are there other way to do it? How I can fix it?

[MartinBL]

I suspect that you have forgotten to enable the lbs service in sdk_config.h. Please add this to the file:

// <q> BLE_LBS_C_ENABLED  - ble_lbs_c - Nordic LED Button Service Client
 

#ifndef BLE_LBS_C_ENABLED
#define BLE_LBS_C_ENABLED 0
#endif

That should hopefully solve the "undefined symbol" error.

To send messages between peripherals you will have to implement some sort of relay mechanism in your central application. Just make the central forward all packets it receives from one peripheral to all the other peripherals.

[Renato Silva]

I undestood! I am trying it.

I changed the multlink example...and I wanna that works as: When peripherals button1 pushed => led on (central) When peripherals button2 pushed => central send broacast to led on in all periphrals (forwad packets)

My doubt now is: How the central knows what button was pushed?

[MartinBL]

There are many ways to Rome. You can modify the Button characteristic with one value showing the state of several buttons, or you can have one characteristic for each button. I suggest that you experiment a bit and create a new thread if you get stuck with new problems.