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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>I tried SAADC on Dynastream D52 module. Im not understanding the value read</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/61579/i-tried-saadc-on-dynastream-d52-module-im-not-understanding-the-value-read</link><description>Hello, 
 I successfully downloaded SAADC SDK example in the peripheral folder. The hardware setup is as below , 
 
 
 The pin configuration for this is as below 
 
 
 
 
 When i connect to J102.01 to GND pin, i get the values as below. 
 
 
 Kindly help</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 27 May 2020 14:51:48 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/61579/i-tried-saadc-on-dynastream-d52-module-im-not-understanding-the-value-read" /><item><title>RE: I tried SAADC on Dynastream D52 module. Im not understanding the value read</title><link>https://devzone.nordicsemi.com/thread/252020?ContentTypeID=1</link><pubDate>Wed, 27 May 2020 14:51:48 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3613819d-eaed-4ae0-8ace-e3550d52bc1f</guid><dc:creator>Nats</dc:creator><description>&lt;p&gt;Thank you @&lt;a class="internal-link view-user-profile" href="https://devzone.nordicsemi.com/members/kme"&gt;Kenneth&lt;/a&gt;&amp;nbsp;for the detailed explanation.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: I tried SAADC on Dynastream D52 module. Im not understanding the value read</title><link>https://devzone.nordicsemi.com/thread/250860?ContentTypeID=1</link><pubDate>Wed, 20 May 2020 06:57:48 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4381242e-e582-44a0-bae1-56a8b18be970</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;In an perfect world the value would be 0 if you connected the input to GND. However an ADC have for instance offset and gain error, and thermal noise&amp;nbsp;affect individual readings, so a value of (assuming 10bit): 30 / 1024 * VDD(assuming 3V) = 88mV is not the far off. However,&amp;nbsp;you may consider running&amp;nbsp;nrf_drv_saadc_calibrate_offset() during&amp;nbsp;saadc_init(). This should reduce the offset error.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>