{"id":155,"date":"2014-09-26T17:54:09","date_gmt":"2014-09-26T23:54:09","guid":{"rendered":"http:\/\/www.kv6o.com\/wordpress\/?p=155"},"modified":"2014-09-26T17:54:09","modified_gmt":"2014-09-26T23:54:09","slug":"dg5-emulator-version-1-4-ready-to-go","status":"publish","type":"post","link":"https:\/\/www.kv6o.com\/wordpress\/2014\/09\/26\/dg5-emulator-version-1-4-ready-to-go\/","title":{"rendered":"DG5 emulator version 1.4 ready to go!"},"content":{"rendered":"<p>I finished up on the changes and tweaks I wanted to make to the design, new schematic below. \u00a0I think I have found a US based PCB house (in Nor Cal, no less!) that can do a run for not much more that what I would pay for the China based house I used last time. \u00a0I should have the boards in less than 2 weeks as opposed to close to 4 weeks. \u00a0Since I just finished it up today, and it&#8217;s Friday, I&#8217;ll wait till Monday to submit the design, giving me 2 days to look it over for any problems.<\/p>\n<p><a href=\"http:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-159\" src=\"http:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4-1024x762.jpg\" alt=\"EagleV1_4\" width=\"625\" height=\"465\" srcset=\"https:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4-1024x762.jpg 1024w, https:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4-300x223.jpg 300w, https:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4-624x464.jpg 624w, https:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/EagleV1_4.jpg 1624w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><\/p>\n<p>Few things I addressed in this version:<\/p>\n<ul>\n<li>Rotated the board on the shield so the inputs are on the same side as the Arduino USB port.<\/li>\n<li>Fixed 3 wiring errors.<\/li>\n<li>Added headers for attaching an LCD display with contrast potentiometer and optional dropping resistor for LED back-light. This will use 2, 6 pin jumpers to connect to the LCD.<\/li>\n<li>Corrected some of the cap and resistor solder pads, should be easier to solder.<\/li>\n<li>Fixed silkscreen errors on shield headers.<\/li>\n<li>Added optional 7805 regulator and 2.1mm power jack for running standalone (no USB power). 7805 WILL need heatsink as it&#8217;s dissipating around 2W, almost twice what the board, LCD and Arduino uses since it&#8217;s dropping 14V (from the back of the TS-520) down to 5V.<\/li>\n<\/ul>\n<p>I looked at using a triple gang RCA jack, but couldn&#8217;t find one with an Eagle footprint, so I am sticking with the single jacks from Sparkfun for now. There is too much risk designing the footprint off the datasheet, part unseen.<\/p>\n<p>[gview file=&#8221;http:\/\/www.kv6o.com\/wordpress\/wp-content\/uploads\/2014\/09\/DG5-shield_v1_4.pdf&#8221; save=&#8221;1&#8243;]<\/p>\n<p>New schematic. \u00a0Only difference from the one below should be the addition of the 7805 and supporting components.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I finished up on the changes and tweaks I wanted to make to the design, new schematic below. \u00a0I think I have found a US based PCB house (in Nor Cal, no less!) that can do a run for not much more that what I would pay for the China based house I used last [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-155","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2NQIK-2v","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/posts\/155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/comments?post=155"}],"version-history":[{"count":4,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/posts\/155\/revisions"}],"predecessor-version":[{"id":161,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/posts\/155\/revisions\/161"}],"wp:attachment":[{"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/media?parent=155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/categories?post=155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kv6o.com\/wordpress\/wp-json\/wp\/v2\/tags?post=155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}