https://devzone.nordicsemi.com/f/nordic-q-a/11455/proper-ble-transmissionThe code below is transmitting data from device (mcu+BLE) to an open source BLE terminal : void BLE_communication_device_to_app(void) { ble.updateCharacteristicValue(characteristic2.getValueAttribute().getHandle(), (const uint8_t*)rx_value1, strlenen-USTelligent Community 13Mon, 25 Jan 2016 12:14:14 GMThttps://devzone.nordicsemi.com/thread/43226?ContentTypeID=1Mon, 25 Jan 2016 12:14:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d3c2275c-c9e7-4ce5-a50a-e1d70805bc36Susheel Nuguru<p>what do you mean by data is stick together. The code snippet you put is android API?</p><div style="clear:both;"></div>