{"id":108,"date":"2017-06-07T02:25:18","date_gmt":"2017-06-07T02:25:18","guid":{"rendered":"http:\/\/lance.conryclan.com\/home\/?p=108"},"modified":"2017-06-07T22:11:13","modified_gmt":"2017-06-07T22:11:13","slug":"wiring-harness-for-vklink-and-prm80-radio","status":"publish","type":"post","link":"https:\/\/lance.conryclan.com\/home\/wiring-harness-for-vklink-and-prm80-radio\/","title":{"rendered":"Wiring harness for VKLink and PRM80 radio"},"content":{"rendered":"<p>My VKLink node uses a PRM80 for the RF gateway, and needed a wiring harness to connect it to the Raspberry Pi.<\/p>\n<p><!--more--><\/p>\n<p>I&#8217;m using DSP for all audio detection functions, which simplifies things significantly. \u00a0As such, I&#8217;m only using four pins.<\/p>\n<p>8: PTT. \u00a0This will initiate TX on the radio.<\/p>\n<p>6: \u00a0Audio in. \u00a0This is the radio&#8217;s audio input.<\/p>\n<p>10: Audio out. \u00a0This is the radio&#8217;s audio output using raw discriminator audio, so not subject to volume or squelch changes.<\/p>\n<p>3: \u00a0Ground: \u00a0This is simply used as the common ground for the audio lines.<\/p>\n<p>The wiring harness to interface it with a Raspberry Pi looks like this:<\/p>\n<p><a href=\"http:\/\/lance.conryclan.com\/home\/wp-content\/uploads\/2017\/06\/PRM80-Wiring.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-107 alignleft\" src=\"http:\/\/lance.conryclan.com\/home\/wp-content\/uploads\/2017\/06\/PRM80-Wiring.png\" alt=\"\" width=\"317\" height=\"523\" srcset=\"https:\/\/lance.conryclan.com\/home\/wp-content\/uploads\/2017\/06\/PRM80-Wiring.png 317w, https:\/\/lance.conryclan.com\/home\/wp-content\/uploads\/2017\/06\/PRM80-Wiring-182x300.png 182w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>My VKLink node uses a PRM80 for the RF gateway, and needed a wiring harness to connect it to the Raspberry Pi.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-108","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/posts\/108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/comments?post=108"}],"version-history":[{"count":2,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/posts\/108\/revisions"}],"predecessor-version":[{"id":113,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/posts\/108\/revisions\/113"}],"wp:attachment":[{"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/media?parent=108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/categories?post=108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lance.conryclan.com\/home\/wp-json\/wp\/v2\/tags?post=108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}