{"id":8790,"date":"2007-05-22T00:37:00","date_gmt":"2007-05-22T04:37:00","guid":{"rendered":"https:\/\/nuxx.net\/blog\/2007\/05\/22\/rs232-to-eaton-leonard-interface-prototype\/"},"modified":"2026-07-01T11:35:29","modified_gmt":"2026-07-01T15:35:29","slug":"rs232-to-eaton-leonard-interface-prototype","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2007\/05\/22\/rs232-to-eaton-leonard-interface-prototype\/","title":{"rendered":"RS232 to Eaton Leonard Interface Prototype"},"content":{"rendered":"<p><center><a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_7276-scaled.jpg\"><img decoding=\"async\" src=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_7276-scaled.jpg\" height=427 width=640 border=0><\/a>Completed Prototype PCB<\/center><\/p>\n<p>Well, after about five hours of working this evening (after laying out the board in free time at work) I&#8217;ve finished the prototype PCB for the project I&#8217;ve been working on for a friend&#8217;s company.<\/p>\n<p>As with the last few boards I&#8217;ve done, I <a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_7269-scaled.jpg\">etched it in the laundry room<\/a>, as the laundry tub and large flat surface makes for a good place to work. (<a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_7271-scaled.jpg\">Photo of PCB being exposed.<\/a>)<\/p>\n<p>Then I drilled the board, breaking more PCB drill bits than I like to. Next came manual bridging of vias (which is a really awful chore), and then finally assembly. After I had it put together I powered it up, probed around for shorts, and generally confirmed that it wouldn&#8217;t explode.<\/p>\n<p>Tomorrow I&#8217;ll confirm that the pinout of the board is as expected, and hopefully I&#8217;ll be able to deliver it at lunch time. If it works I&#8217;ll (hopefully) have some production boards made for them. I stayed late at work avoiding traffic and worked up a <a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/at_rs232_eatonleonard_pcb_firstdraft.png\">first draft of a mostly-SMT board layout, fitting in ~30mm x ~85mm<\/a>. If I end up producing these boards I can see the final product being something like this, should I choose to do it SMT.<\/p>\n<p>Hopefully tomorrow I&#8217;ll get to unpack the new baking stone, the new x0xb0x kit, and maybe just relax a bit. For now it&#8217;s bed time. Goodnight.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Completed Prototype PCB Well, after about five hours of working this evening (after laying out the board in free time at work) I&#8217;ve finished the prototype PCB for the project I&#8217;ve been working on for a friend&#8217;s company. As with the last few boards I&#8217;ve done, I etched it in the laundry room, as the\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,11,34],"tags":[],"class_list":["post-8790","post","type-post","status-publish","format-standard","hentry","category-electronics","category-making-things","category-moved-from-livejournal"],"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=8790"}],"version-history":[{"count":2,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8790\/revisions"}],"predecessor-version":[{"id":24578,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/8790\/revisions\/24578"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=8790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=8790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=8790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}