adding beacon to BLE LED/Button service

[xtian]

good day,

is it possible to add beacon to bled led/button example. If the device is not connected and the button is pressed, we would like it to start broadcasting as beacon.

but if the device is paired/connected, it would be like the normal ble led/button behavior where it is going to send 1 if button is pressed.

using pca10040 with sdk 17.1

[Hieu]

Hi xtian,

Yes, this is possible. You can just modify the options in the button_event_handler() or its equivalent in the example you are working on.

However, for most of our examples, I believe the application's behavior is to start advertising when the device is disconnected. What kind of advertisement do you want to broadcast?

Hieu

[M.Praveen]

any example code modified the button_event_handler

[xtian]

sorry for late reply.

instead of button example, how about changing from uart example to beacon example. so initially it will be using gatts service and change to beacon mode when button is pressed.

do i need to uninitialize something?

[Hieu]

Hi xtian,

You shouldn't need to deinitialize anything. However, if you need the GATT feature to be completely inaccessible after the button is pressed, then you also need to remember to disconnect all existing connection to the device.

[xtian]

the plan is to switch to beacon mode when no devices are connected if the button is pressed. so i just need to call the advertising_start function for beacon?

[Hieu]

Hi xtian,

I may have misunderstood you. I thought by "beacon" you mean a device making non-connectable advertising to broadcast certain data.

If I understand you correctly now, your use case is: When a device is disconnected, it makes connectable advertising so that a new Central device can reconnect to it.

Is that right?

If so, then almost all of our Peripheral examples already work like that. I am sure the UART/Serial Port Emulation over BLE example does it.

The behavior is realized by the Advertising Module library. Please go over its documentation for more information.

Hieu

[xtian]

hi,

the first one is correct. initially, it will be like the BLE_UART example where it is connectable but we also want it to be like the BLE_APP_BEACON (non-connectable) example when a button is pressed when no devices are connected and it's advertising. and when it is acting as beacon, we want it to be able switch back to BLE_UART (connectable) example if the button is pressed.

[Hieu]

Hi xtian,

Please refer to this blog post then:  How to update advertising data dynamically using BLE Advertising library .