https://devzone.nordicsemi.com/f/nordic-q-a/106495/how-to-auto-refreshing-the-values-of-temperature-and-humidity-that-i-send-on-nrf-connect-for-mobileLike the title says, i&#39;m using BLE on Arduino IDE so i can send the values of the temperature and humidity that my dht11 sensor is receiving. I want to refresh those values automatically on the nrf connect for mobile app and i can only do that by clickingen-USTelligent Community 13Mon, 11 Dec 2023 12:47:46 GMThttps://devzone.nordicsemi.com/thread/459696?ContentTypeID=1Mon, 11 Dec 2023 12:47:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59e7ec6c-48b6-4296-88f7-cbf2d7289b58J&#248;rgen Holmefjord<p>Hi,</p> <p>Notifications are normally used to send values without requiring the receiver to periodically read the characteristics. Notifications are enabled by pressing &quot;3 downward arrows&quot; button in nRF Connect application. Since this button is not available for your characteristics, it is possible that the&nbsp;<span>Client Characteristic Configuration Descriptor is not implemented in the custom service.</span></p> <p><span>If you are using nRF Connect SDK, you can reference <a href="https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-4-bluetooth-le-data-exchange/topic/blefund-lesson-4-exercise-2/">exercise 2 in lesson 4 of the Bluetooth Low Energy Fundamentals course</a> on DevAcademy.</span></p> <p><span>If you are using nRF5 SDK, please have a look at step 3 in the <a href="https://devzone.nordicsemi.com/guides/short-range-guides/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial">Bluetooth low energy Characteristics, a beginner&#39;s tutorial Tutorial</a>.</span></p> <p><span>Best regards,<br />Jørgen</span></p><div style="clear:both;"></div>