<?xml version="1.0" encoding="UTF-8" ?>
<?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>Radio Low power</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/50236/radio-low-power</link><description>Hello Im new here. 
 Im test Radio : Low power 
 When i push button --&amp;gt; wake up and send packet, after send packet, it sleep. 
 can you help me? thank you. 
 have a good day .</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 02 Jun 2023 23:06:36 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/50236/radio-low-power" /><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/429087?ContentTypeID=1</link><pubDate>Fri, 02 Jun 2023 23:06:36 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a6e198d6-7b64-438b-80ea-704110dfecc4</guid><dc:creator>John henrry</dc:creator><description>&lt;p&gt;tks u&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/429086?ContentTypeID=1</link><pubDate>Fri, 02 Jun 2023 23:05:34 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e55030f2-c3a6-4fee-8d19-4e7df2789837</guid><dc:creator>John henrry</dc:creator><description>&lt;p&gt;tks you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200834?ContentTypeID=1</link><pubDate>Sat, 27 Jul 2019 09:56:36 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:cdd1ccd0-4da1-453b-9c5a-caf15bce38da</guid><dc:creator>John henrry</dc:creator><description>&lt;p&gt;Thanks All. Love all, im trying.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200694?ContentTypeID=1</link><pubDate>Fri, 26 Jul 2019 08:47:03 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:ec7d3fda-f408-44fd-8866-f66092e6f7cd</guid><dc:creator>Simonr</dc:creator><description>&lt;p&gt;Sorry, I forgot to specify BLE products. I&amp;#39;ve corrected my reply. Thank you for your vigilance&amp;nbsp;&lt;a href="https://devzone.nordicsemi.com/members/awneil"&gt;awneil&lt;/a&gt;!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200690?ContentTypeID=1</link><pubDate>Fri, 26 Jul 2019 08:42:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:10fd8d97-dc63-4769-b32e-77317f47f99d</guid><dc:creator>awneil</dc:creator><description>[quote userid="81405" url="~/f/nordic-q-a/50236/radio-low-power/200629"]Sorry my english not ok[/quote]
&lt;p&gt;Your English is fine - there was just not enough information in your post.&lt;/p&gt;
[quote userid="81405" url="~/f/nordic-q-a/50236/radio-low-power/200629"]I want to comunication 2 nRF51822[/quote]
&lt;p&gt;As &lt;a href="https://devzone.nordicsemi.com/members/simonr"&gt;Simonr&lt;/a&gt; says, that&amp;#39;s rather an old product - do you have a specific reason for starting with that?&lt;/p&gt;
&lt;p&gt;Do you specifically want to use BLE (Bluetooth Low Energy), or would a proprietary radio protocol be OK for your application?&lt;/p&gt;
&lt;p&gt;With BLE, one of your devices would need to be a Central (presumably number 2?) and the other (number 1?) would be a Peripheral.&lt;/p&gt;
&lt;p&gt;This is the standard BLE architecture - not specific to Nordic or nRF51.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gap"&gt;https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gap&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://www.nordicsemi.com/Get-Started"&gt;https://www.nordicsemi.com/Get-Started&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/introduction-to-bluetooth-low-energy-and-ble-devel"&gt;https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/introduction-to-bluetooth-low-energy-and-ble-devel&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200688?ContentTypeID=1</link><pubDate>Fri, 26 Jul 2019 08:34:01 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8f1bf426-3f18-4d74-9d9a-da29cce7800c</guid><dc:creator>awneil</dc:creator><description>[quote userid="75734" url="~/f/nordic-q-a/50236/radio-low-power/200663"]the nF51 series are not recommended for new products[/quote]
&lt;p&gt;So that&amp;#39;s changed, then?&lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/119955#119955"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/119955#119955&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;It used to be just that they were not recommended for new &lt;em&gt;&lt;strong&gt;BLE&lt;/strong&gt;&lt;/em&gt; products:&lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/187356#187356"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/187356#187356&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200663?ContentTypeID=1</link><pubDate>Fri, 26 Jul 2019 07:23:16 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:970d27a3-27fd-4ff8-990c-f0a7af79059b</guid><dc:creator>Simonr</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;First of all, the nRF51 series are not recommended for new BLE products if that&amp;#39;s what you had in mind, as their SoftDevices and SDKs are not being updated anymore. Please consider checking out the &lt;a href="https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF52810"&gt;nRF52810&lt;/a&gt;/&lt;a href="https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF52832"&gt;nRF52832 &lt;/a&gt;instead, as we update the firmware for these devices regularly.&lt;/p&gt;
&lt;p&gt;Depending on how much data you want to send, the &lt;a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v12.3.0%2Fble_sdk_app_beacon.html&amp;amp;cp=5_5_7_4_2_2_2"&gt;ble_app_beacon example&lt;/a&gt; could be used to send up to 30 bytes. You&amp;#39;d have to configure the chip to wake up upon button press, and immediately go into deep sleep mode when the advertising is done, but it would be a good starting point.&lt;/p&gt;
&lt;p&gt;As for the central, most of our &lt;a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v12.3.0%2Fexamples_ble_central.html&amp;amp;cp=5_5_7_4_2_0"&gt;BLE central examples&lt;/a&gt; would do what you describe. You&amp;#39;ll have to set them to scan constantly to catch any advertisements made by the peripheral device.&lt;/p&gt;
&lt;p&gt;Due to the summer holidays in Norway, our support team is understaffed this week, and delayed replies must be expected. Sorry for the inconvenience!&lt;/p&gt;
&lt;p&gt;Best regards,&lt;/p&gt;
&lt;p&gt;Simon&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200629?ContentTypeID=1</link><pubDate>Fri, 26 Jul 2019 01:34:27 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:e3c098ec-1a24-410a-85c9-077c1b9be27b</guid><dc:creator>John henrry</dc:creator><description>&lt;p&gt;Sorry my english not ok.&lt;/p&gt;
&lt;p&gt;&amp;nbsp; - I want to comunication 2 nRF51822 ( radio).&lt;/p&gt;
&lt;p&gt;(1) nRF51822 ( I use send data)&lt;/p&gt;
&lt;p&gt;(2) nRF51822 ( I use Receive data)&lt;/p&gt;
&lt;p&gt;Normal (1) sleep mode.&amp;nbsp;when push button (1) wake up and send data --&amp;gt; (2), after send data,(1) sleep.&lt;/p&gt;
&lt;p&gt;Thank you.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Radio Low power</title><link>https://devzone.nordicsemi.com/thread/200472?ContentTypeID=1</link><pubDate>Thu, 25 Jul 2019 10:36:14 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8dc3c87a-6ff0-42d0-9478-8b3f0230895f</guid><dc:creator>awneil</dc:creator><description>&lt;p&gt;Help you with what exactly?&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Are you referring to an SDK example?&lt;/li&gt;
&lt;li&gt;Do you have something, but it&amp;#39;s not working?&lt;/li&gt;
&lt;li&gt;Are you asking how to get started?&lt;/li&gt;
&lt;li&gt;other?&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;We can&amp;#39;t read your mind!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>