how to send data from nRF52832 to phone

RE: how to send data from nRF52832 to phone

Saffiq — Fri, 23 Mar 2018 12:57:39 GMT

Hi . Can i know the coding that you use to send data from nRF52832 to iphone ? because currently i am trying to send data from sensor that were connected to nRF52832 to mobile phone

RE: how to send data from nRF52832 to phone

Alaa — Tue, 02 Jan 2018 10:10:30 GMT

@Joakim - I solved it thanks... I had to enable notification in the BLE app on the smartphone.

RE: how to send data from nRF52832 to phone

Alaa — Tue, 02 Jan 2018 10:02:50 GMT

@Joakim - From debugging I understand that this happens because ble_srv_is_notification_enabled() returns false. What does it mean that notification is not enabled? How do I enable it please?

RE: how to send data from nRF52832 to phone

Alaa — Tue, 02 Jan 2018 09:58:22 GMT

@Joakim - I keep getting an error NRF_ERROR_INVALID_STATE when I do this. Any ideas? Thank you!

RE: how to send data from nRF52832 to phone

Joakim Jakobsen — Tue, 19 Sep 2017 07:39:16 GMT

Hi. I'm sorry, this is all my mistake. The code snippet in my answer should be in the bsp_event_handler NOT the ble_event_handler. I will edit my answer.

RE: how to send data from nRF52832 to phone

Kaito — Tue, 19 Sep 2017 07:31:56 GMT

thank you for your reply. i could send the data to iphone!!

I really appreciate your advice!!!

RE: how to send data from nRF52832 to phone

Bayram ZAYET — Mon, 18 Sep 2017 08:32:24 GMT

Hello,

you can just use the UART example in your SDK. via the service nus, you will be able to send what you want from and to your nRF52 through a terminal.

please check this link.

regards.

RE: how to send data from nRF52832 to phone

Joakim Jakobsen — Mon, 18 Sep 2017 07:47:24 GMT

Hi Kaito!

There is several ways to do this. You can send some data to your phone after a keypress, at a certain event or set up a timer and send data at a fixed interval etc. I also don't know what type of data you want to send.
There are several examples in the SDK that can send data to your phone. But you can take a look at the ble_app_uart example, and the way it is done there.

Just as a simple example, you can add this to the bsp_event_handler in the ble_app_uart example:

case BSP_EVENT_KEY_1:
{			
uint8_t data[6] = "Hello!";
uint16_t length = 6; 
ble_nus_string_send(&m_nus, data, &length);
}

This will make your application send the string "Hello!" each time you press button 2, if you connect your phone via UART in the nRF Toolbox app.

Best regards,
Joakim.