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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>Zephyr - nRF52840 BLE data characteristic write does not give a response.</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/84567/zephyr---nrf52840-ble-data-characteristic-write-does-not-give-a-response</link><description>Hello, 
 I am writing code in zephyr on nRF52840. I am advertising my BLE. and we have a stable android app (built-in a flutter). My problem is when I am trying to write an array of data from android app data characteristics one by one. It writes first</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 10 Feb 2022 06:48:54 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/84567/zephyr---nrf52840-ble-data-characteristic-write-does-not-give-a-response" /><item><title>RE: Zephyr - nRF52840 BLE data characteristic write does not give a response.</title><link>https://devzone.nordicsemi.com/thread/352211?ContentTypeID=1</link><pubDate>Thu, 10 Feb 2022 06:48:54 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0530ec97-fddb-449d-adae-cc6ccfe42af5</guid><dc:creator>Amanda Hsieh</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;My colleague in your first link already answered that.&lt;/p&gt;
&lt;p&gt;-Amanda&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Zephyr - nRF52840 BLE data characteristic write does not give a response.</title><link>https://devzone.nordicsemi.com/thread/352173?ContentTypeID=1</link><pubDate>Wed, 09 Feb 2022 17:55:38 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:f6974658-30ce-4d3b-92ba-38a61ed7a8cd</guid><dc:creator>Neeraj Dhekale</dc:creator><description>&lt;p&gt;Hello Amanda,&lt;/p&gt;
&lt;p&gt;Thanks for your reply.&lt;/p&gt;
&lt;p&gt;This is not flutter related question. Basically, my question was similar to below question asked.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/81477/zephyr---ble-how-to-send-response-after-characteristic-write-operation"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/81477/zephyr---ble-how-to-send-response-after-characteristic-write-operation&lt;/a&gt; &lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/3978/how-to-give-response-after-client-writes-to-characteristic"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/3978/how-to-give-response-after-client-writes-to-characteristic&lt;/a&gt; &lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/29157/sdk-12-3-0---how-to-return-response-after-characteristic-write-is-called"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/29157/sdk-12-3-0---how-to-return-response-after-characteristic-write-is-called&lt;/a&gt; &lt;/p&gt;
&lt;p&gt;I want more detailed help with this.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks and regards,&lt;/p&gt;
&lt;p&gt;Neeraj Dhekale&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Zephyr - nRF52840 BLE data characteristic write does not give a response.</title><link>https://devzone.nordicsemi.com/thread/352099?ContentTypeID=1</link><pubDate>Wed, 09 Feb 2022 14:18:00 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:309c37af-a03c-40df-a019-5b7fe0e1e926</guid><dc:creator>Amanda Hsieh</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
[quote user=""]I haven&amp;#39;t used the &lt;strong&gt;write without response&lt;/strong&gt; property but still, I have to write property in flutter &amp;quot;withoutResponse:true&amp;quot; to proceed. that&amp;#39;s why I believe nRF52840 is not responding. Is this understanding correct?[/quote]
&lt;p&gt;I am not familiar with flutter, so let other experts answer or seek help on flutter form or&amp;nbsp;stackoverflow.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
[quote user=""]Is there anything wrong with my code? How can I make sure my nRF52840 is responding back?[/quote]
&lt;p&gt;You can test the code with&amp;nbsp;&lt;a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-mobile"&gt;https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-mobile&lt;/a&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Regards,&lt;br /&gt;Amanda&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>