https://devzone.nordicsemi.com/f/nordic-q-a/4504/broadcast-4-bytes-from-peripheralWhat are the possibilities to broadcast 4bytes to many devices? Can I just put them somewhere in adv packet? Any other solutions?en-USTelligent Community 13Tue, 18 Nov 2014 17:58:32 GMThttps://devzone.nordicsemi.com/thread/15987?ContentTypeID=1Tue, 18 Nov 2014 17:58:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5135d28e-7e6c-4dce-9427-0886edcd00deOliver<p>I added a chapter which should clarify upon your concern.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/15986?ContentTypeID=1Tue, 18 Nov 2014 14:08:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6fe0ea3d-fda9-4699-8b21-9a3328dcabe6buslik<p>Tnx for help. I forget to mention that I would like to update data each second.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/15985?ContentTypeID=1Tue, 18 Nov 2014 13:53:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:25f32d42-f7d6-4f55-a11a-6c75e138fcacOliver<p>You can include arbitrary data in the advertisement payload using the <a href="https://www.bluetooth.org/en-us/specification/assigned-numbers/generic-access-profile"><code>MANUFACTURER_SPECIFIC_DATA</code></a> type. The size is limited by the maximum size of one advertisement frame, though.</p> <p><strong>Edit:</strong> If haven&#39;t used any of the nRF chips before, but by looking at the S110 API it should be pretty simple to update the advertisement data quite frequently.</p> <p>First start the advertising using <code>sd_ble_gap_adv_start</code> with a proper value for <code>interval</code>. Something like <code>0x640</code> should correspond to an interval of 1 second, since 1000 / 0.625 = 1600. Second you need to call <code>sd_ble_gap_adv_data_set</code> to update your advertisement data when ever you feel the need to.</p> <p><strong>Beware:</strong> These are just assumptions, since I haven&#39;t worked with an nRF chip or the corresponding software stack before.</p><div style="clear:both;"></div>