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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>BLE DB Discovery module discovering same characteristics multiple times</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/34881/ble-db-discovery-module-discovering-same-characteristics-multiple-times</link><description>Hi everbody, 
 I&amp;#39;m using the BLE Database Discovery module to discover services and characteristics of a BLE peripheral. This works fine, except for one strange quirk: 
 When I perform the discovery multiple times, the same characteristics are reported</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 30 May 2018 14:25:16 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/34881/ble-db-discovery-module-discovering-same-characteristics-multiple-times" /><item><title>RE: BLE DB Discovery module discovering same characteristics multiple times</title><link>https://devzone.nordicsemi.com/thread/134066?ContentTypeID=1</link><pubDate>Wed, 30 May 2018 14:25:16 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:7f803523-1580-4217-b715-fbd986e0e6b1</guid><dc:creator>Alex Suzuki</dc:creator><description>&lt;p&gt;Thanks, that was it. I was missing the zeroing out of the ble_db_discovery_t structure before&amp;nbsp;starting the discovery.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: BLE DB Discovery module discovering same characteristics multiple times</title><link>https://devzone.nordicsemi.com/thread/134047?ContentTypeID=1</link><pubDate>Wed, 30 May 2018 13:25:40 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8aaac63a-3f26-4a7e-88ac-3ab2a52dca02</guid><dc:creator>Hung Bui</dc:creator><description>&lt;p&gt;Hi Alex,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Most likely it&amp;#39;s a bug with the initialization of the db discovery module. Please have a look at &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/16029/nrf52-ble_db_discovery-failed-to-initialize-correctly-when-repeats-the-service-discovery"&gt;this case,&lt;/a&gt; there is a fix provided.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>