Pi install - Teh Forum

<body> <div id="header"> <span class="left"> <span class="back"><a href="lthread_list.php?webtag=DEFAULT"><span class="image mobile_back" title="Back"></span></a></span> <span class="image mobile_logo" title="Beehive Forum Logo"></span> </span> <ul> <li> <a class="reply_all" href="lpost.php?webtag=DEFAULT&reply_to=42216.0&return_msg=42216.44"> <span class="image mobile_reply_all"></span><span class="text">Reply to All</span> </a> </li> <li> <a class="navigation" href="#"> <span class="image mobile_navigation"></span><span class="text">Show messages</span> </a> </li> <li> <a class="main" href="#"><span class="image mobile_menu" title="Menu"></span> </a> </li> </ul> </div> <div class="menu main"> <ul> <li><a href="lthread_list.php?webtag=DEFAULT">Messages</a></li> <li><a href="lpm.php?webtag=DEFAULT">Inbox</a></li> <li><a href="lsearch.php?webtag=DEFAULT">Search</a></li> <li><a href="llogon.php?webtag=DEFAULT">Login</a></li> </ul> </div> <div class="menu navigation"><a href="lmessages.php?webtag=DEFAULT&msg=42216.1">1–10</a>…<a href="lmessages.php?webtag=DEFAULT&msg=42216.21">21–30</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.31">31–40</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.41">41–50</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.51">51–60</a>…<a href="lmessages.php?webtag=DEFAULT&msg=42216.91">91–92</a></div> <div id="page_content"> <h3 class="thread_title"><a href="index.php?webtag=DEFAULT&amp;msg=42216.44">Pi install</a> </h3> <div id="messages" data-navigation="42216_44_92_10"> <a name="a42216_44"></a><div class="message" id="message_42216_44"> <div class="message_header"> <div class="message_from"> From: Peter (BOUGHTONP)<span class="message_time">26 Aug 2018 14:12</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 26 Aug 2018 14:59"></span></span> <span class="message_count">44 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.44">42216.44</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.43">42216.43</a></div> <div class="message_body"> The <tt>GPIO.setmode(GPIO.BOARD)</tt> makes it use pin numbers, but you can use <tt>GPIO.setmode(GPIO.BCM)</tt> to use GPIO numbers instead. <p>The DAC/AMP might only provide the first 10 pins on top, but it's not clear from photos if they actually prevent you connecting to the other pins underneath?</p></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.44&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.44"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_45"></a><div class="message" id="message_42216_45"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">26 Aug 2018 18:41</span> <div class="clearer"></div> </div><div class="message_to">To: Peter (BOUGHTONP) <span><span class="image post_read" title="Read: 26 Aug 2018 20:12"></span></span> <span class="message_count">45 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.45">42216.45</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_44" target="_self">42216.44</a></div> <div class="message_body"> Yeah, they do. The DAC covers all 40 pins, while the amp takes the first ten and passes them through to the headers on top of the whole stack. I'm pretty sure it's passing pins 1 - 10 through as shorting 5 and 6 with the script configured to use them did shut it down. I don't get that if /a/ GPIO pin can be utilised to do a thing, then why couldn't /another/ GPIO be used to do the same thing, providing it's (apparently) unused?</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.45&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.45"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_46"></a><div class="message" id="message_42216_46"> <div class="message_header"> <div class="message_from"> From: Peter (BOUGHTONP)<span class="message_time">26 Aug 2018 20:44</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 26 Aug 2018 20:53"></span></span> <span class="message_count">46 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.46">42216.46</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_45" target="_self">42216.45</a></div> <div class="message_body"> Well yeah, if GPIO is supposed to be general purpose then any unused pin should work. <p>It seems counter to the point of this to take all pins, only use some, and pass through ones that can't be properly used. What about sending a message to IQaudio seeing if they're willing to help? </p><p>Failing that, maybe you can de-solder the connector and replace it with several smaller ones, including a right-angle connector for the unused ports? Or I guess cables would be easier at the expense of compactness.</p></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.46&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.46"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_47"></a><div class="message" id="message_42216_47"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">26 Aug 2018 20:55</span> <div class="clearer"></div> </div><div class="message_to">To: Peter (BOUGHTONP) <span><span class="image post_read" title="Read: 26 Aug 2018 20:58"></span></span> <span class="message_count">47 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.47">42216.47</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_46" target="_self">42216.46</a></div> <div class="message_body"> That's a fair idea, I'll send them a message. There must also be some kind of inbuilt shutdown script, as there's a software power button within the Kodi interface. If I can find that, I might be able to add in the backlight commands, which would be half the battle won.</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.47&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.47"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_48"></a><div class="message" id="message_42216_48"> <div class="message_header"> <div class="message_from"> From: Peter (BOUGHTONP)<span class="message_time">26 Aug 2018 21:19</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 26 Aug 2018 21:19"></span></span> <span class="message_count">48 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.48">42216.48</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_47" target="_self">42216.47</a></div> <div class="message_body"> <i>> There must also be some kind of inbuilt shutdown script</i> <p>Heh, so yeah, that's a really simple solution - that loser Xen would have pointed it out ages ago if he were here. </p><p>You can use <a href="https://www.freedesktop.org/software/systemd/man/systemd.special.html">systemd</a> to hook into system events (like shutdown), so you can create simple service <a href="https://bbs.archlinux.org/viewtopic.php?pid=1469558#p1469558">like this one</a> with <tt>Before=shutdown.target</tt>: </p><pre>[Unit] Description=/etc/rc.local.shutdown Compatibility Before=shutdown.target [Service] ExecStart=/bin/true ExecStop=/etc/rc.local.shutdown RemainAfterExit=yes [Install] WantedBy=multi-user.target</pre> <p>Where <tt>/etc/rc.local.shutdown</tt> is a script containing the original <tt>echo 0 > /sys/class/backlight/rpi_backlight/bl_power</tt> (prepended with <tt>#!/bin/bash</tt> line) and once you've enabled that service, any time the system is shutdown - whether via Kodi or command line or the button - it triggers the script and turns off the backlight.</p></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.48&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.48"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_49"></a><div class="message" id="message_42216_49"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">26 Aug 2018 21:19</span> <div class="clearer"></div> </div><div class="message_to">To: All <span><span class="image post_unread" title="Unread Message"></span></span> Peter (BOUGHTONP) <span><span class="image post_read" title="Read: 26 Aug 2018 21:20"></span></span> <span class="message_count">49 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.49">42216.49</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.30">42216.30</a></div> <div class="message_body"> Okaaaaay... I've created a shutdown file here:<br /> <div class="quotetext"><strong>Code:</strong> </div> <pre class="code"> /storage/.config/<span class="mark">shutdown</span>.sh</pre> <br /> And created this script, putting in the backlight command under the poweroff option.<br /> <div class="quotetext"><strong>Code:</strong> </div> <pre class="code"> case "$1" in halt) # your commands here ;; poweroff) # your commands here ;; reboot) # your commands here ;; *) # your commands here ;; esac</pre> <br /> This works with the software power off, but will mean I need to flick the power switch (which'll be mounted in an under counter cupboard) to get it to turn back on. So, not ideal, but it'll work for now. <span class="emoticon e_smile" title=":)"><span class="e__">:)</span></span><div class="edit_text">EDITED: 26 Aug 2018 21:20 by GRAPHITONE</div> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.49&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.49"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_50"></a><div class="message" id="message_42216_50"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time">26 Aug 2018 21:21</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 26 Aug 2018 21:21"></span></span> <span class="message_count">50 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.50">42216.50</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_49" target="_self">42216.49</a></div> <div class="message_body"> If I'm understanding what you want to do there is a pin available on the RPi to reset the board/power. Connect a button, press it, and it'll act a soft on type button by resetting the RPi from its shutdown state. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.50&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.50"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_51"></a><div class="message" id="message_42216_51"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">26 Aug 2018 21:23</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 26 Aug 2018 21:23"></span></span> <span class="message_count">51 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.51">42216.51</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_50" target="_self">42216.50</a></div> <div class="message_body"> Ah, that'd be damned useful, providing it's somewhere between 1 & 10 and isn't 5!</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.51&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.51"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_52"></a><div class="message" id="message_42216_52"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time">26 Aug 2018 21:24</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 26 Aug 2018 21:25"></span></span> <span class="message_count">52 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.52">42216.52</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_51" target="_self">42216.51</a></div> <div class="message_body"> It's totally separate. It's called "run". Different location on different versions of raspberry pis but the newer ones have it. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.52&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.52"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_53"></a><div class="message" id="message_42216_53"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">26 Aug 2018 21:27</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 26 Aug 2018 21:28"></span></span> <span class="message_count">53 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.53">42216.53</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.44#a42216_52" target="_self">42216.52</a></div> <div class="message_body"> Found this which seems useful, I'll have a read before bed:<br /><br /><a href="https://www.raspberrypi.org/forums/viewtopic.php?t=218600">https://www.raspberrypi.org/forums/viewtopic.php?t=218600</a><br /> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.53&return_msg=42216.44" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.53"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div></div> <div class="message_page_footer"> <ul> <li class="right_col"><form accept-charset="utf-8" method="get" action="lmessages.php" target="_self"><input type="hidden" name="webtag" id="webtag" class="bhinputtext" value="DEFAULT" dir="ltr" /><input type="hidden" name="msg" id="msg" class="bhinputtext" value="42216.54" dir="ltr" /><input type="submit" name="submit" id="keep_reading" value="Keep reading…" class="button" /></form></li> </ul> </div> </div> </body>