{"id":170,"date":"2019-03-05T17:19:38","date_gmt":"2019-03-05T17:19:38","guid":{"rendered":"https:\/\/oshablue.com\/bsides\/?p=170"},"modified":"2019-03-12T19:12:33","modified_gmt":"2019-03-12T19:12:33","slug":"if2c-power-options","status":"publish","type":"post","link":"https:\/\/oshablue.com\/doc\/if2c-power-options\/","title":{"rendered":"IF2C: Power Options"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69ea59cfb8630\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69ea59cfb8630\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/oshablue.com\/doc\/if2c-power-options\/#Battery\" title=\"Battery\">Battery<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/oshablue.com\/doc\/if2c-power-options\/#Bench_DC_Supply_41VDC_to_the_Battery_Connector\" title=\"Bench DC Supply (4.1VDC) to the Battery Connector\">Bench DC Supply (4.1VDC) to the Battery Connector<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/oshablue.com\/doc\/if2c-power-options\/#5VDC_from_USB_to_Host_GXN_Terminal_Block\" title=\"5VDC from USB to Host (G\/XN) Terminal Block\">5VDC from USB to Host (G\/XN) Terminal Block<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>There are three general power options for the IF2C\/GXN (or G) board stack for demo purposes, and a few options in the details of how you do it.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>For powering by battery or 4.1VDC supply via battery connector, there is a 5VDC output from the IF2C that should be connected by a wire to the +VDC input on the Host (G\/XN) board, for example at the screw terminal block on the Host.  This provides power to the Host from the IF2C.<\/p>\n\n\n\n<p>However, for a cleaner look, this same connection can be made by connecting the solder jumper for VSYSIN on the IF2C.  And then you don&#8217;t need that jumper wire.  This may reduce some charging functionality.  So it is only advisable if you are dedicating an IF2C\/GXN pair to be always and only powered by USB 5VDC the way that a stand-alone G\/XN or DLITE are often configured with a USB-Serial cable. Though, feel free to test it either way.  Erring on the conservative side here.  See below for more details (5VDC from USB to Host (G\/XN) Terminal Block).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Battery\"><\/span>Battery<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Battery is the tested and preferred demo power supply option for the IF2C\/GXN (or G) hardware stack.  It is the basis of the demo use-case.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Chemistry: Single-cell Li-Poly<\/li><li>GXN+IF2C stack was tested with 2500mAh flat single-cell LiPoly with JST-PH connector and built-in overcurrent and undervoltage control<\/li><li>There are single-cell LiPoly options available off the shelf (OTS) in a variety of capacities, e.g. 4400mAh, 6600mAh, etc.<\/li><li>You can populate any of the DNP&#8217;d battery connectors on the IF2C.<\/li><li>See <a href=\"https:\/\/oshablue.com\/bsides\/2019\/02\/28\/if2c-quick-start\/\">Quick Start<\/a> for more info on battery choices.<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bench_DC_Supply_41VDC_to_the_Battery_Connector\"><\/span>Bench DC Supply (4.1VDC) to the Battery Connector<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Without a battery, if you want to get started, a reasonable option is to  use an adjustable bench supply to provide 4.1VDC or thereabouts to the <strong>battery<\/strong> input of the IF2C to power a stack of the two boards: DLITE variant + HDL-0108-IF2C.<\/p>\n\n\n\n<p>The board is not designed or populated at this time for powering via the USB Mini-B connector on the IF2C.<\/p>\n\n\n\n<p>On the IF2C, as shipped, the USB connector is for charging only and will disable main system power when plugged in. The same is true for any 5VDC applied to any of the charge input options (not populated by default, but you can populate them).<br><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5VDC_from_USB_to_Host_GXN_Terminal_Block\"><\/span>5VDC from USB to Host (G\/XN) Terminal Block<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Although not a tested or intended use case, it turns out you can probably get away with powering the board stack from a USB-Serial cable for example. (See <a href=\"https:\/\/oshablue.com\/bsides\/2019\/03\/12\/if2c-communications-options\/\">IF2C\/G\/XN\/Host Communications Options<\/a>)<\/p>\n\n\n\n<p>The tested USB configuration was using a battery\/4.1VDC-bench supply into the IF2C with only the USB-Serial (1) ground, (2) Tx, and (3) Rx (maybe a flow control line if you use that in your setup) connected to the board stack.  (What use this that way?  Just R&amp;D purposes.)<\/p>\n\n\n\n<p>However it turns out that the board stack will probably work with a 5VDC input to the Host board, the same way it is usually powered.  It appears that any signals or rails in question are tolerant of being &#8216;back powered&#8217; here.<\/p>\n\n\n\n<p>So, you could apply the USB-Serial 5VDC wire to the +VDC input on the Host as usual.<\/p>\n\n\n\n<p>Then you could use either a wire to connect that power to the 5VDC pin\/through-hole on the IF2C or you could solder together the VSYSIN solder jumper on the IF2C.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There are three general power options for the IF2C\/GXN (or G) board stack for demo purposes, and a few options in the details of how you do it.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[18,15,9,16,17,13,14,19,12],"tags":[],"class_list":["post-170","post","type-post","status-publish","format-standard","hentry","category-hdlite-accessories","category-hdlite-family","category-hardware","category-hdl-0108-if2c-r01-a1","category-if2c","category-ndt","category-new-prototypes","category-power-management-and-battery","category-ultrasonics","entry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/posts\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/comments?post=170"}],"version-history":[{"count":4,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/posts\/170\/revisions"}],"predecessor-version":[{"id":220,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/posts\/170\/revisions\/220"}],"wp:attachment":[{"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/media?parent=170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/categories?post=170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oshablue.com\/doc\/wp-json\/wp\/v2\/tags?post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}