https://devzone.nordicsemi.com/f/nordic-q-a/37454/how-to-send-a-char-array-in-a-custom-characteristicHi, I&#39;ve been trying to build a custom characteristic and so far I can display a single digit number on my BLE app. My update value function looks like this: And my add function looks like this : Now, how do I send a character say : char testen-USTelligent Community 13Wed, 15 Aug 2018 08:23:58 GMThttps://devzone.nordicsemi.com/thread/144271?ContentTypeID=1Wed, 15 Aug 2018 08:23:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:64447990-a4f8-411b-b6a6-c651790cd199Kenneth<p>Yes, but you can also take a look at the description on how to test the example from the documentation:<br /> <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/ble_sdk_app_nus_eval.html?cp=4_0_0_4_1_2_24_2#project_uart_nus_eval_test">http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/ble_sdk_app_nus_eval.html?cp=4_0_0_4_1_2_24_2#project_uart_nus_eval_test</a>&nbsp;</p> <p>You should also look at the ascii table that show the relationship between an hex and ascii value:<br /><a href="https://commons.wikimedia.org/wiki/File:ASCII-Table.svg">https://commons.wikimedia.org/wiki/File:ASCII-Table.svg</a>&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/144229?ContentTypeID=1Tue, 14 Aug 2018 17:30:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e840db32-8b08-461e-adb3-7d42914b6f66smhapank<p>Hi, Kenneth. Are you referring to the function&nbsp;ble_nus_string_send()?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/144057?ContentTypeID=1Tue, 14 Aug 2018 06:37:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6b42007-a8df-481d-904a-5e274b03d621Kenneth<p>Have you taken a look at \ble_app_uart example?</p><div style="clear:both;"></div>