{"id":1313,"date":"2025-04-10T09:34:28","date_gmt":"2025-04-10T09:34:28","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&#038;p=1313"},"modified":"2025-04-10T09:34:28","modified_gmt":"2025-04-10T09:34:28","slug":"hd8-external-inputs-and-outputs","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-controllers\/hd8-product-documentation\/hd8-external-inputs-and-outputs\/","title":{"rendered":"HD8: External inputs and outputs"},"content":{"rendered":"\n<p>The HD8 contains 4 digital I\/O points which can be used as inputs or outputs. We call these &#8220;bidirectional&#8221;. In effect they consist of an input and an output brought out to a single pin. If the output is OFF, an externally connected device (say an NPN sensor or a contact) can control the on\/off state of the pin. If the output is turned on, it connects the I\/O pin to 0V via a transistor switch and it registers an ON input. Hence to use a pin as in input you simply make sure its output circuit is turned off.<br><\/p>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>The HD8 contains 4 digital I\/O points which can be used as inputs or outputs. We call these &#8220;bidirectional&#8221;. In effect they consist of an&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1300,"menu_order":3,"template":"","class_list":["post-1313","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HD8: External inputs and outputs - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HD8: External inputs and outputs - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"The HD8 contains 4 digital I\/O points which can be used as inputs or outputs. We call these &#8220;bidirectional&#8221;. 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