https://forge.codesys.com/forge/talk/Runtime/thread/f63f3ec788/2023-07-04T12:26:29.075000ZRecent posts to How to control the Amp2 from HifiBerry ?2023-07-04T12:26:29.075000Z2023-07-04T12:26:29.075000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.comc7a2fc1b2da1fd17f0876cec894001de3b2c93b7

<div class="markdown_content"><p>Hello,<br/> Any other hints...?</p></div>

2023-06-28T11:10:44.952000Z2023-06-28T11:10:44.952000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.com0d6e01aeb2da7d87ce49cec872f1f48b178cf349

<div class="markdown_content"><p>Hello,<br/> I tryed this:</p> <div class="codehilite"><pre><span></span><span class="err">SysProcessExecuteCommand('amixer cset numid=3 20%', ADR(cmdResult2)); </span> <span class="err">SysProcessExecuteCommand('aplay /home/pi/mb/post.wav', ADR(cmdResult));</span> </pre></div> <p>But it's not working... the sound is played but the volume is still at maximum...</p></div>

2023-06-27T19:55:28.090000Z2023-06-27T19:55:28.090000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com11ac87fa98096779e56dbf3a44c615f4188d29cb

<div class="markdown_content"><p>if you call the amixer command via CODESYS?</p></div>

2023-06-27T16:18:41.704000Z2023-06-27T16:18:41.704000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.com810f02a3529fe37a3cce3da7c86488a38f6d295b

<div class="markdown_content"><p>Hello,<br/> Of course with:<br/> "amixer cset numid=3 50%"<br/> I can change the volume. This is working only if the sound is played in the command line on the Raspi (via Putty) with the command:<br/> "aplay /home/pi/mb/post.wav"<br/> But when the command is done via Codesys with:<br/> "SysProcessExecuteCommand('aplay /home/pi/mb/post.wav', ADR(cmdResult));"<br/> the volume set before seems ignored and the sound is played at the maximum volume...<br/> What can I do...?</p> <p>Thx<br/> Yann</p></div>

2023-06-27T14:27:29.111000Z2023-06-27T14:27:29.111000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com97fcf9ec30bbc94874337fe5e1743dfaa0dccd4a

<div class="markdown_content"><p>google for 'amixer' cmd under linux</p></div>

2023-06-27T14:11:43.061000Z2023-06-27T14:11:43.061000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.com3726cb9cd2c0377682fab018346069e9116d585e

<div class="markdown_content"><p>Hello,<br/> Many thanks, it's working but now how can I adjust the volume ?</p></div>

2023-06-27T07:37:16.263000Z2023-06-27T07:37:16.263000Zh-hermsenhttps://forge.codesys.com/u/hermsen/https://forge.codesys.com3df6885c2fd81f0db41ad830e8279e990e7cc1f9

<div class="markdown_content"><p>You define a Result in your PLC code, to monitor wether the SysProcess.SysProcessExecuteCommand returns a succes or fail.</p></div>

2023-06-23T12:40:45.618000Z2023-06-23T12:40:45.618000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.com8cbf00fc9b1ea3673805fe10d0423af8e2d8e298

<div class="markdown_content"><p>Hello,</p> <p>Many thanks for your answer. What exactly "ADR(Result)" do? How should I declare it?</p> <p>Yann</p></div>

2023-06-21T18:13:55.099000Z2023-06-21T18:13:55.099000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com2a9d71110da75546418a841abb0d316d3e010220

<div class="markdown_content"><p>I do it for example on a Wago Touchpanel 600 that way:<br/> (Play sound)</p> <div class="codehilite"><pre><span></span><span class="err">IF xTest OR PLC_PRG.xAlarm THEN </span> <span class="err"> //SysProcess.SysProcessExecuteCommand('aplay /var/opt/codesys/alarm1.wav', ADR(Result)); </span> <span class="err"> SysProcess.SysProcessExecuteCommand('aplay /var/opt/codesys/PlcLogic/Application/alarm1.wav', ADR(Result)); </span> <span class="err"> xTest := FALSE; </span> <span class="err">END_IF </span> </pre></div> </div>

2023-06-21T13:36:16.653000Z2023-06-21T13:36:16.653000Zyann2021https://forge.codesys.com/u/yann2021/https://forge.codesys.com0c3ca363bb70927eec1e7c8f8d95eebb32aed925

<div class="markdown_content"><p>Hello,</p> <p>To have a good sound quality I would like to use the Amp2 from HifiBerry:<br/> <a href="https://www.hifiberry.com/shop/boards/hifiberry-amp2/" rel="nofollow">https://www.hifiberry.com/shop/boards/hifiberry-amp2/</a><br/> Is it possible to control it from Codesys? If yes how?</p> <p>Many thanks in advance for your replies.</p></div>