<html><head><meta http-equiv="Content-Security-Policy" content="script-src 'self'; img-src * cid: data:;"><meta http-equiv="Content-Security-Policy" content="script-src 'self'; img-src * cid: data:;"><style id="outgoing-font-settings">#response_container_BBPPID{font-family: initial; font-size:initial; color: initial;}</style></head><body style="background-color: rgb(255, 255, 255); background-image: initial; line-height: initial;"><div id="response_container_BBPPID" style="outline:none;" dir="auto" contenteditable="false"> <div name="BB10" id="BB10_response_div_BBPPID" dir="auto" style="width:100%;"> The C-Media cards are used because of the PTT/COR easy modification/native support... There is tutorials about making PTT/COR using sometimes simple and sometimes more complex circuits or using the GPIO to control PTT... A quick google search will fix that. I remember there is a GPIO PTT repo on Github.</div><div name="BB10" id="BB10_response_div_BBPPID" dir="auto" style="width:100%;"><br></div><div name="BB10" id="BB10_response_div_BBPPID" dir="auto" style="width:100%;"><br></div> <div name="BB10" id="response_div_spacer_BBPPID" dir="auto" style="width:100%;"> <br style="display:initial"></div> <div id="blackberry_signature_BBPPID" name="BB10" dir="auto"> <div id="_signaturePlaceholder_BBPPID" name="BB10" dir="auto"><p dir="ltr">VA2XJM </p></div> </div></div><div id="_original_msg_header_BBPPID" dir="auto"> <table id="_pHCWrapper_BBPPID" width="100%" style="background-color: white; border-spacing: 0px; display: table; outline: none;" contenteditable="false"><tbody><tr><td colspan="2" style="padding: initial; font-size: initial; text-align: initial; background-color: rgb(255, 255, 255);"> <div style="border-right: none; border-bottom: none; border-left: none; border-image: initial; border-top: 1pt solid rgb(181, 196, 223); padding: 3pt 0in 0in; font-family: Tahoma, "BB Alpha Sans", "Slate Pro"; font-size: 10pt;"> <div id="from"><b>From:</b> rkarroo@gmail.com</div><div id="sent"><b>Sent:</b> April 15, 2019 22:54</div><div id="to"><b>To:</b> app_rpt-users@lists.allstarlink.org</div><div id="reply_to"><b>Reply to:</b> app_rpt-users@lists.allstarlink.org</div><div id="subject"><b>Subject:</b> Re: [App_rpt-users] NON- C-media Sound card and Pi GPIO</div></div></td></tr></tbody></table> <br> </div><!--start of _originalContent --><div name="BB10" dir="auto" style="background-image: initial; line-height: initial; outline: none;" contenteditable="false"><div dir="ltr"><div>I am also interested by this solution.</div><div><br></div><div>My goal (rather our goal because I am not alone in this) is to be able to add a second interconnection medium. Currently in collaboration with the Radio Amateurs from Reunion Island, we (at 3B8) have set up an inter-island connection using svxlink reflector. It works fine though.<br></div><div>An interface using the PI GPIO would help to seperate the fact of being tied up with one particular sound <wbr><a href="http://card.Moreover">card.Moreover</a><wbr> it would remove any possible electronic issue that may arise (humidity on the sound FOB etc) if the node is set remotely.</div><div><br></div><div>73s</div><div><br></div><div>Rachid Karroo</div><div>3B8FP<br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 15, 2019 at 11:02 PM Jean-Michel Vien VA2XJM <<a href="mailto:va2xjm@gmail.com">va2xjm@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb( 204 , 204 , 204 );padding-left:1ex"><div style="background-color:rgb( 255 , 255 , 255 )"><div id="gmail-m_3866622398736138475response_container_BBPPID" style="outline:none medium" dir="auto"> <div id="gmail-m_3866622398736138475BB10_response_div_BBPPID" dir="auto" style="width:100%"> There is a way to ise GPIO as PTT... But C-Media is cheap and easy to mod...</div><div id="gmail-m_3866622398736138475BB10_response_div_BBPPID" dir="auto" style="width:100%"><br></div><div id="gmail-m_3866622398736138475BB10_response_div_BBPPID" dir="auto" style="width:100%">What is your goal exactly?</div> <div id="gmail-m_3866622398736138475response_div_spacer_BBPPID" dir="auto" style="width:100%"> <br></div> <div id="gmail-m_3866622398736138475blackberry_signature_BBPPID" dir="auto"> <div id="gmail-m_3866622398736138475_signaturePlaceholder_BBPPID" dir="auto">VA2XJM </div> </div></div><div id="gmail-m_3866622398736138475_original_msg_header_BBPPID" dir="auto"> <table style="background-color:white;border-spacing:0px;display:table;outline:none medium" width="100%"><tbody><tr><td colspan="2" style="background-color:rgb( 255 , 255 , 255 )"> <div style="border-color:rgb( 181 , 196 , 223 );border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in;font-family:'tahoma' , 'bb alpha sans' , 'slate pro';font-size:10pt"> <div id="gmail-m_3866622398736138475from"><b>From:</b> <a href="mailto:electricity440@gmail.com">electricity440@gmail.com</a></div><div id="gmail-m_3866622398736138475sent"><b>Sent:</b> April 15, 2019 14:59</div><div id="gmail-m_3866622398736138475to"><b>To:</b> <a href="mailto:app_rpt-users@lists.allstarlink.org">app_rpt-users@lists.allstarlink.org</a></div><div id="gmail-m_3866622398736138475reply_to"><b>Reply to:</b> <a href="mailto:app_rpt-users@lists.allstarlink.org">app_rpt-users@lists.allstarlink.org</a></div><div id="gmail-m_3866622398736138475subject"><b>Subject:</b> [App_rpt-users] NON- C-media Sound card and Pi GPIO</div></div></td></tr></tbody></table> <br> </div><div dir="auto" style="outline:none medium"><div dir="ltr">Is there any possibility in the foreseeable feature to use any ALSA ( or pulse audio) compatible sound card and the Pi GPIO pins (or anything else) for PTT/COR LOGIC? <div><br></div><div>I would love to get away from being stuck to C-Media chips! </div><div><br></div><div>How hard is it to add compatibility. Many other ham programs such as Direwolf Packet TNC use Alsa and several different PTT options and support any sound card that normally works on linux. </div><div><br></div><div>skyler</div></div>
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