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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Guidance on Sending Distance Measurements to an Android App via GATT Service</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/118934/guidance-on-sending-distance-measurements-to-an-android-app-via-gatt-service</link><description>I am currently working on a distance measurement library using the nRF52840 DK and nRF52840 dongle. I have successfully obtained distance values on the serial terminal, but I need assistance in transmitting these values to an Android application. 
 Specifically</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 13 Feb 2025 17:17:49 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/118934/guidance-on-sending-distance-measurements-to-an-android-app-via-gatt-service" /><item><title>RE: Guidance on Sending Distance Measurements to an Android App via GATT Service</title><link>https://devzone.nordicsemi.com/thread/522936?ContentTypeID=1</link><pubDate>Thu, 13 Feb 2025 17:17:49 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:eac41935-17f9-4a49-b545-bbb243d80ac0</guid><dc:creator>Amanda Hsieh</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Nordic Semiconductor has a custom GATT service called the Direction and Distance Finding Service (DDFS) which is designed for publishing distance measurement data. This service has a specific UUID and characteristics for distance measurements. See&amp;nbsp;&lt;a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/libraries/bluetooth/services/ddfs.html" rel="noopener noreferrer" target="_blank"&gt;DDFS Documentation&lt;/a&gt;. You can use &lt;a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-mobile"&gt;nRF Connect for mobile&lt;/a&gt;&amp;nbsp;app to get the values.&amp;nbsp;&lt;/p&gt;
[quote user=""]A step-by-step process to implement this, including defining the GATT service, setting up characteristics, and handling notifications or read requests on the Android side.[/quote]
&lt;p&gt;See this &lt;a href="https://devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/getting-started/posts/ncs-ble-tutorial-part-1-custom-service-in-peripheral-role#h80sk6jeuuqohyrfrbic4xhe8hobp4"&gt;tutorial&lt;/a&gt;.&lt;/p&gt;
&lt;p&gt;Regards,&lt;br /&gt;Amanda H.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>