nRF52840 Serial Comm. RSSI Values

[Chris Eubanks]

Hello,

I am currently working with the nRF52840 DK, and I have been having trouble printing RSSI values over termite.

Code:

static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)

{

ret_code_t err_code;

ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;

switch (p_ble_evt->header.evt_id)

{

case BLE_GAP_EVT_ADV_REPORT:

on_adv_report( &p_gap_evt->params.adv_report );

if ( p_gap_evt->params.adv_report.scan_rsp )

{

printf("RSSI: %d",p_ble_evt->evt.gap_evt.params.adv_report.rssi);

}

break; ...

At the the moment the following is happening: 

I am using printf("RSSI: %d",p_ble_evt->evt.gap_evt.params.adv_report.rssi);, to capture the RSSI value in the adv_report, however there appear to be a very large quantity of RSSI values.

My goal is to print out a single RSSI value for each device. 

Thanks,

Chris

[Joakim Jakobsen]

Hi Chris!

I suppose the reason that you get a large quantity of RSSI values is because you will get advertising reports whenever the cental device are scanning and detects an advertising packet.

Take a look at this thread, and see the comments from Jørgen.

if ( p_gap_evt->params.adv_report.scan_rsp )

I'm not sure why you are using the .scan_rsp. This will only print the RSSI for scan responses?

This exact topic is discussed in this thread:
https://devzone.nordicsemi.com/f/nordic-q-a/27453/read-rssi-value

Take a look at the threads above, and let me know if they are helpful.
Please let me know if you have any further questions.

Best regards,
Joakim.

 

[Venkat]

hello Chris can you please tell me where should I write this code