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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>Achieving ~3uA sleep current with nRF52832 running mbed-os 5.8</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/30515/achieving-3ua-sleep-current-with-nrf52832-running-mbed-os-5-8</link><description>I need to achieve the &amp;quot;few uAmps&amp;quot; level of sleep current while running the latest mbed-os 5 on an nRF2832 (inside a u-blox NINA-B1 module). I&amp;#39;m currently seeing ~500 uA in sleep, so there is a way to go. In the NRF5 hal_sleep() call softdevice_hander_is_enabled</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 20 Feb 2018 15:32:01 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/30515/achieving-3ua-sleep-current-with-nrf52832-running-mbed-os-5-8" /><item><title>RE: Achieving ~3uA sleep current with nRF52832 running mbed-os 5.8</title><link>https://devzone.nordicsemi.com/thread/121414?ContentTypeID=1</link><pubDate>Tue, 20 Feb 2018 15:32:01 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:9b56538f-0569-4a36-ac17-e533dd1f04da</guid><dc:creator>RobMeades</dc:creator><description>&lt;p&gt;Thanks: I&amp;#39;ve now made a build which does not enable BTLE (so SoftDevice is not in use), main() containing just a wake-up event to toggle a GPIO every 500 ms, and that shows a sleep current of ~350 nA with very short spikes to ~10 uA every ~18 ms.&amp;nbsp; That&amp;#39;s good enough for now, I can look at enabling and disabling SoftDevice later.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Achieving ~3uA sleep current with nRF52832 running mbed-os 5.8</title><link>https://devzone.nordicsemi.com/thread/121282?ContentTypeID=1</link><pubDate>Mon, 19 Feb 2018 15:03:50 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3b8de711-458b-449e-9d64-965142b07176</guid><dc:creator>Mttrinh</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;You can try using &lt;a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v5.0.0/group___n_r_f___s_d_m___f_u_n_c_t_i_o_n_s.html#ga420235cbdf6b0746ce86af3cfd0ec055" rel="noopener noreferrer" target="_blank"&gt;sd_softdevice_enable&lt;/a&gt; and &lt;a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v5.0.0/group___n_r_f___s_d_m___f_u_n_c_t_i_o_n_s.html#ga45900ecbe6d5ebf9ae78894fe6c75b23" rel="noopener noreferrer" target="_blank"&gt;sd_softdevice_disable&lt;/a&gt;, to enable and disable the softdevice.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Also check out this &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/19400/nrf52-sleep-mode-and-ble-advertising-mbed" rel="noopener noreferrer" target="_blank"&gt;post&lt;/a&gt;.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>