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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>NRF52 Capacitive Button Interrupt and Power Consumption</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/74756/nrf52-capacitive-button-interrupt-and-power-consumption</link><description>Hello, 
 I am working an a product based on the NRF52832 and I need to trigger an interrupt when a capacitive button is pressed / proximity detected (BLE is peripheral and it is advertising). 
 I need the extra current used by the capacitive touch controller</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 05 May 2021 14:07:29 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/74756/nrf52-capacitive-button-interrupt-and-power-consumption" /><item><title>RE: NRF52 Capacitive Button Interrupt and Power Consumption</title><link>https://devzone.nordicsemi.com/thread/308383?ContentTypeID=1</link><pubDate>Wed, 05 May 2021 14:07:29 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:11aceaa1-3a52-4f43-b660-fc4773d69e56</guid><dc:creator>Jared</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;If&amp;nbsp;you use the &lt;a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_csense.html?cp=7_1_3_8"&gt;capacitive sensing library&lt;/a&gt; then you can expect a significant increase in current consumption as it uses the Timer and COMP peripherals, where the former uses the HFCLK. You can try flashing your devkit with&amp;nbsp;&lt;a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_csense_example.html?cp=7_1_4_6_5"&gt;capacitive sensor example&lt;/a&gt; and measure the current it uses.&lt;/p&gt;
&lt;p&gt;regards&lt;/p&gt;
&lt;p&gt;Jared&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>