BLE is not advertising after goes to sleep mode?

[Eisenheim]

Hi, 

I am using  nRF5_SDK_15.3.0 with ble_app_uart example.When I flashed the ble_app_uart example into my  nRF52840 DK it starts to advertising. If there is no connection occurs it goes to sleep mode after 3 minute. So advertising also stopped.  I want to connect the bluetooth after it is going to sleep mode. Is there any possibility? 

[awneil]

Eisenheim said:

it goes to sleep mode after 3 seconds

You mean 3 minutes.

That is the documented behaviour!

"11. If no peer connects to the application within 180 seconds (APP_ADV_TIMEOUT_IN_SECONDS), the application will put the chip into system-off mode"

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_nus_eval.html?cp=5_1_4_2_2_24_2#project_uart_nus_eval_test

180 seconds = 3 minutes.

If you look at the code, you will see that an advertising timeout is specified and, when the timeout event occurs, the device is put to sleep.

So you have 2 choices:

1. Don't have a timeout
2. Don't go sleep when the timeout happens - restart the advertising.

[Eisenheim]

Oh Sorry it's my mistake I mean 3 minute. Thanks for your suggestions.. By pressing Button 1,2, 3 or 4  it starts to advertise again.