https://devzone.nordicsemi.com/f/nordic-q-a/839/the-loss-of-data-while-sending-through-bleHi, For developing our application i am using ble_app_hrs in my case i have gpio interrupt for every 500 ms to get data from accelerometer. question: in heart rate measurement time out handler , i create local buffer of 300 bytes , i senden-USTelligent Community 13Mon, 11 Nov 2013 16:41:20 GMThttps://devzone.nordicsemi.com/thread/4148?ContentTypeID=1Mon, 11 Nov 2013 16:41:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6b7590d-bcf2-4669-b4d4-6208239112c5Ole Morten<p>The reason you don&#39;t get your data through is that you don&#39;t check your error codes. Please take a detailed look again at your previous questions, and make sure to implement all recommendations there.</p><div style="clear:both;"></div>