PCBmedo/ESP8266 - 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=41688.0&return_msg=41688.7"> <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=41688.1">1–10</a><a href="lmessages.php?webtag=DEFAULT&msg=41688.11">11–20</a>…<a href="lmessages.php?webtag=DEFAULT&msg=41688.111">111</a></div> <div id="page_content"> <h3 class="thread_title"><a href="index.php?webtag=DEFAULT&amp;msg=41688.7">PCBmedo/ESP8266</a> </h3> <div id="messages" data-navigation="41688_7_111_10"> <a name="a41688_7"></a><div class="message" id="message_41688_7"> <div class="message_header"> <div class="message_from"> From: koswix<span class="message_time">14 Feb 2016 08:47</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 14 Feb 2016 08:49"></span></span> <span class="message_count">7 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.7">41688.7</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.4">41688.4</a></div> <div class="message_body"> Ridiculously cheap, as long as you're not in a rush. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.7&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.7"> <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="a41688_8"></a><div class="message" id="message_41688_8"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time">14 Feb 2016 08:52</span> <div class="clearer"></div> </div><div class="message_to">To: koswix <span><span class="image post_read" title="Read: 14 Feb 2016 08:55"></span></span> <span class="message_count">8 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.8">41688.8</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_7" target="_self">41688.7</a></div> <div class="message_body"> Very tempted to order a set before the parts have even arrived. A little bit of a risk considering I don't even know if the parts will work as I want. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.8&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.8"> <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="a41688_9"></a><div class="message" id="message_41688_9"> <div class="message_header"> <div class="message_from"> From: koswix<span class="message_time">14 Feb 2016 08:55</span> <div class="clearer"></div> </div><div class="message_to">To: JonCooper <span><span class="image post_read" title="Read: 14 Feb 2016 12:58"></span></span> <span class="message_count">9 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.9">41688.9</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.5">41688.5</a></div> <div class="message_body"> That's a bloody good point, I vaguely remember being told that once (possibly in first year), but never really thought about it again. <br /> <br /> Just done some reading and seems it's actually perfectly fine for digital signals (up to about 2 GPS anyway), but can be pretty devastating for analogue. <br /> <br /> <a href="http://www.sigcon.com/Pubs/edn/bigbadbend.htm">http://www.sigcon.com/Pubs/edn/bigbadbend.htm</a><br /> <br /> <a href="http://www.ti.com/lit/ml/sloa089/sloa089.pdf">http://www.ti.com/lit/ml/sloa089/sloa089.pdf</a><br /> <br /> I haven't done any multilayer boards, but when I looked at Ant's design I did wonder about interference between the traces running on top of each other. Decided it probably wasn't going to be an issue on that board, however I didn't think at all about capacitance. That may have a much bigger impact. There's a method for calculating the parasitic capacitance in the second link there, might be worth working out what it would be and seeing what impact that would have on the design. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.9&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.9"> <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="a41688_10"></a><div class="message" id="message_41688_10"> <div class="message_header"> <div class="message_from"> From: koswix<span class="message_time">14 Feb 2016 08:57</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 14 Feb 2016 09:02"></span></span> <span class="message_count">10 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.10">41688.10</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_8" target="_self">41688.8</a></div> <div class="message_body"> <span class="emoticon e_giggle" title="(giggle)"><span class="e__">(giggle)</span></span> do it. At worst you'll have some nice looking book marks. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.10&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.10"> <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="a41688_11"></a><div class="message" id="message_41688_11"> <div class="message_header"> <div class="message_from"> From: JonCooper<span class="message_time">14 Feb 2016 13:24</span> <div class="clearer"></div> </div><div class="message_to">To: koswix <span><span class="image post_read" title="Read: 14 Feb 2016 14:15"></span></span> <span class="message_count">11 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.11">41688.11</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_9" target="_self">41688.9</a></div> <div class="message_body"> For a board that simple it would be pretty easy to just make sure the traces weren't on top of each other anyway - no worries either way then. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.11&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.11"> <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="a41688_12"></a><div class="message" id="message_41688_12"> <div class="message_header"> <div class="message_from"> From: Ben (BENLUMLEY)<span class="message_time"> 7 Mar 2016 11:04</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 7 Mar 2016 18:59"></span></span> <span class="message_count">12 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.12">41688.12</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.1">41688.1</a></div> <div class="message_body"> what are you making?</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.12&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.12"> <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="a41688_13"></a><div class="message" id="message_41688_13"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time"> 7 Mar 2016 19:00</span> <div class="clearer"></div> </div><div class="message_to">To: Ben (BENLUMLEY) <span><span class="image post_read" title="Read: 7 Mar 2016 22:19"></span></span> <span class="message_count">13 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.13">41688.13</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_12" target="_self">41688.12</a></div> <div class="message_body"> That would be a wifi temperature sensor using an esp8266 module. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.13&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.13"> <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="a41688_14"></a><div class="message" id="message_41688_14"> <div class="message_header"> <div class="message_from"> From: koswix<span class="message_time"> 7 Mar 2016 21:58</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 7 Mar 2016 22:11"></span></span> <span class="message_count">14 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.14">41688.14</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_13" target="_self">41688.13</a></div> <div class="message_body"> I'm going to try laser etching a pcb (Well, the mask anyway, still needs to be dumped in ferric chloride to remove the copper) tomorrow. No vias or through hole plating but should be good enough for my needs. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.14&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.14"> <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="a41688_15"></a><div class="message" id="message_41688_15"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time"> 7 Mar 2016 22:12</span> <div class="clearer"></div> </div><div class="message_to">To: koswix <span><span class="image post_read" title="Read: 8 Mar 2016 00:28"></span></span> <span class="message_count">15 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.15">41688.15</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_14" target="_self">41688.14</a></div> <div class="message_body"> I should have just ordered the PCBs rather than wait for the parts that still haven't arrived. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.15&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.15"> <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="a41688_16"></a><div class="message" id="message_41688_16"> <div class="message_header"> <div class="message_from"> From: Ben (BENLUMLEY)<span class="message_time"> 7 Mar 2016 23:07</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 8 Mar 2016 08:35"></span></span> <span class="message_count">16 of 111</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41688.16">41688.16</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41688.7#a41688_13" target="_self">41688.13</a></div> <div class="message_body"> that's what i thought... i keep meaning to get around to making a few of these to monitor the house + feed back the data to somewhere.... are you battery powering them? (I'm fairly sure the circuit diagram doesn't tell me this... )<br /><br /> be interested to see how you get on (i'll notice your reply next time i swing by in 2 years time no doubt!)</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41688.16&return_msg=41688.7" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41688.16"> <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="41688.17" dir="ltr" /><input type="submit" name="submit" id="keep_reading" value="Keep reading…" class="button" /></form></li> </ul> </div> </div> </body>