https://devzone.nordicsemi.com/f/nordic-q-a/8132/stack-execute-time-to-send-the-dataHi, I using nRF51822, S110 and NUS to send the data to the phone. When sending the data, I using ble_nus_string_send function. I need the execute time to the phone from my device. As you know I can not check the execute time in BLE stack. Soen-USTelligent Community 13Mon, 13 Jul 2015 14:03:41 GMThttps://devzone.nordicsemi.com/thread/29195?ContentTypeID=1Mon, 13 Jul 2015 14:03:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f22ca92-58d5-4ed0-b1d2-609a3e61b79dSusheel Nuguru<p>you can easily achieve this by toggling pin before ble_nus_string_send and after you receive a radio notification and see how far they toggled.</p><div style="clear:both;"></div>