https://devzone.nordicsemi.com/f/nordic-q-a/3432/send-some-data-when-advertisingmy purpose is like that:i want to collect some useful data from external sensors before initial BLE ,and when the the nrf51822 advertising,i send this data out to the smartphone. is it possible to do that?if i can ,how to do that?en-USTelligent Community 13Mon, 11 Aug 2014 07:37:51 GMThttps://devzone.nordicsemi.com/thread/12438?ContentTypeID=1Mon, 11 Aug 2014 07:37:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0a79dd54-33df-470a-8571-0356e4b5df77Vidar Berg<p>Hi, It sounds like you should take a look at the BLE beacon example in SDK. This example advertises service data in broadcast mode, which means that sensor data can be read without connecting to the peripheral. I would also recommend experimenting with app. note 36 <a href="https://www.nordicsemi.com/eng/Products/Bluetooth-Smart-Bluetooth-low-energy/nRF51822">(link)</a> if you&#39;re new to BLE. Note that the app. note is currently compatible with nrf51 SDK 5.2 only.</p><div style="clear:both;"></div>