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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>Electrical signal linked to the push action</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/61922/electrical-signal-linked-to-the-push-action</link><description>Hi, 
 I am working with the bsp.c functions. One of the actions is BSP_BUTTON_ACTION_PUSH, which the value is 1. I would like to know at which electrical signal it is related : is it a up to down or down to up ? 
 I am working with SDK 15.2.</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 28 May 2020 14:46:52 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/61922/electrical-signal-linked-to-the-push-action" /><item><title>RE: Electrical signal linked to the push action</title><link>https://devzone.nordicsemi.com/thread/252247?ContentTypeID=1</link><pubDate>Thu, 28 May 2020 14:46:52 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e55f0c4a-d0d1-4ab0-86a4-4d11568e6534</guid><dc:creator>Beldramma</dc:creator><description>&lt;p&gt;I think that it is &lt;a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf52832_dk%2FUG%2Fnrf52_DK%2Fhw_btns_leds.html&amp;amp;resultof=%22%62%75%74%74%6f%6e%22%20"&gt;that&lt;/a&gt;.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;From the doc :&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;quot;&amp;nbsp;&lt;span&gt;The&amp;nbsp;buttons are active low, meaning the input will be connected to ground when the&amp;nbsp;button&amp;nbsp;is activated. The&amp;nbsp;buttons have no external pull-up resistor, so to use the&amp;nbsp;buttons the&amp;nbsp;&lt;/span&gt;&lt;span class="keyword pcb"&gt;P0.13&lt;/span&gt;&lt;span&gt;&amp;ndash;&lt;/span&gt;&lt;span class="keyword pcb"&gt;P0.16&lt;/span&gt;&lt;span&gt;&amp;nbsp;pins must be configured as an input with an internal pull-up resistor. &amp;quot;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Electrical signal linked to the push action</title><link>https://devzone.nordicsemi.com/thread/252238?ContentTypeID=1</link><pubDate>Thu, 28 May 2020 14:13:21 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8e9579d0-d4ef-4b96-81f3-95e815eb6f31</guid><dc:creator>Beldramma</dc:creator><description>&lt;p&gt;Hi Turbo J, thanks for you fast answer.&lt;/p&gt;
&lt;p&gt;My&amp;nbsp;BUTTONS_ACTIVE_STATE is at 1. So that mean that my push button is active when i come from low to high ?&lt;/p&gt;
&lt;p&gt;Do you know where i can find this information?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Electrical signal linked to the push action</title><link>https://devzone.nordicsemi.com/thread/252216?ContentTypeID=1</link><pubDate>Thu, 28 May 2020 13:44:59 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:f08b9c2a-e254-4d56-a91b-3e2b2ed1537c</guid><dc:creator>Turbo J</dc:creator><description>[quote userid="90244" url="~/f/nordic-q-a/61922/electrical-signal-linked-to-the-push-action"] is it a up to down or down to up[/quote]
&lt;p&gt;That is configurable in the board&amp;#39;s header file: BUTTONS_ACTIVE_STATE&lt;/p&gt;
&lt;p&gt;Edit: On the DKs, the buttons are usually active low.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>