<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi Bob,</div><div><br></div><div>Thanks for that advice. I had started to think that I was going to try that as I'd seen a number of photos of the CP2102 with the RX and TX pins jumpered together and I read this PDF file too.</div><div><br></div><div><a href="http://www.mods-ham.com/03_Home-brew/Homebrew-Mods/USB-Programmier-Interface/USB-Programmier-Interface.pdf">http://www.mods-ham.com/03_Home-brew/Homebrew-Mods/USB-Programmier-Interface/USB-Programmier-Interface.pdf</a></div><div><br></div><div>I should have the various bits and pieces here by the weekend if the Ebay traders do their stuff and I'll give it a go. </div><div><br></div><div>73</div><div><br></div><div>Mark<br><br><span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">Mark Lewis GW7KDU</span><div><div style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "><br></div></div></div><div><br>On 30 Sep 2014, at 01:03, Bob Fk <<a href="mailto:vk2byf@gmail.com">vk2byf@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div dir="ltr">Yes you need a ground reference connection. Join the Data TX and RX together onto the data pin and it works.<div><br></div><div>I made my own cable for the VX-5 and it works.</div><div><br></div><div>Regards Bob VK2BYF</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 30 September 2014 05:00, <span dir="ltr"><<a href="mailto:chirp_users-request@intrepid.danplanet.com" target="_blank">chirp_users-request@intrepid.danplanet.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send chirp_users mailing list submissions to<br>
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<br>Today's Topics:<br>
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1. Re: Homebrew cable for Baofeng UV-5R/Yaesu VX-7R based on<br>
CP2102 UART (YT9TP Pedja)<br>
<br><br>---------- Forwarded message ----------<br>From: YT9TP Pedja <<a href="mailto:yt9tp@uzice.net">yt9tp@uzice.net</a>><br>To: Discussion of CHIRP <<a href="mailto:chirp_users@intrepid.danplanet.com">chirp_users@intrepid.danplanet.com</a>><br>Cc: <br>Date: Sun, 28 Sep 2014 21:08:24 +0200<br>Subject: Re: [chirp_users] Homebrew cable for Baofeng UV-5R/Yaesu VX-7R based on CP2102 UART<br>On 28.9.2014 13:16, Mark Lewis GW7KDU wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I found this pin out for the VX-7R<br>
<a href="http://www.kc8unj.com/pinout.jpg" target="_blank">http://www.kc8unj.com/pinout.<u></u>jpg</a><br>
This seems to be similar to the Baofeng UV-3R (as shown on the Miklor<br>
page) but is a Ground connection required?<br>
</blockquote>
<br>
It seems like VX-7R uses one pin for data and it is bidirectional. If that is the case then you should add some more components to convert bidirectional single pin to standard RX/TX serial connection.<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><font color="#006600"><b>The miracle of life is that it exists despite everything it's got going against it.</b></font><div><b style="color:rgb(0,102,0);font-size:xx-large"><i><font face="'arial black', sans-serif">Bob </font></i></b></div>
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