{"id":7212,"date":"2020-07-07T22:51:16","date_gmt":"2020-07-07T14:51:16","guid":{"rendered":"http:\/\/www.mateksys.com\/?post_type=portfolio&#038;p=7212"},"modified":"2026-01-29T16:40:13","modified_gmt":"2026-01-29T08:40:13","slug":"aspd-4525","status":"publish","type":"portfolio","link":"https:\/\/www.mateksys.com\/?portfolio=aspd-4525","title":{"rendered":"Digital Airspeed Sensor ASPD-4525"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3iijwc-1adc47c89f622db2a336ee40d7960857\">\n#top .av-special-heading.av-3iijwc-1adc47c89f622db2a336ee40d7960857{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-3iijwc-1adc47c89f622db2a336ee40d7960857 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-3iijwc-1adc47c89f622db2a336ee40d7960857 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-3iijwc-1adc47c89f622db2a336ee40d7960857 av-special-heading-h2 blockquote modern-quote modern-centered  avia-builder-el-0  el_before_av_slideshow  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Digital Airspeed Sensor ASPD-4525<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<div  class='avia-slideshow av-kcc0uese-d16ac13b16806635e8173a0857d34035 avia-slideshow-featured_large av_slideshow avia-slide-slider  avia-builder-el-1  el_after_av_heading  el_before_av_tab_container  av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 40%;'><li  class='avia-slideshow-slide av-kcc0uese-d16ac13b16806635e8173a0857d34035__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img fetchpriority=\"high\" class=\"wp-image-7220 avia-img-lazy-loading-not-7220\"  src='https:\/\/www.mateksys.com\/wp-content\/uploads\/2020\/07\/ASPD-4525_1.jpg' width='1500' height='600' title='ASPD-4525_1' alt=''  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><\/ul><\/div>\n<div  class='tabcontainer av-kcc0xqf1-fa4837e4c9471332ccac21a2b1ea4d0e top_tab  avia-builder-el-2  el_after_av_slideshow  avia-builder-el-last ' role='tablist'>\n<section class='av_tab_section av_tab_section av-41jcoc-2567556ebe134642fe072df272e2b5f5'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='tab active_tab' role='tab' tabindex='0' data-fake-id='#tab-id-1' aria-controls='tab-id-1-content'  itemprop=\"headline\" >Photos<\/div><div id='tab-id-1-content' class='tab_content active_tab_content' aria-hidden=\"false\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7217\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2020\/07\/ASPD-4525_2.jpg\" alt=\"\" width=\"1500\" height=\"600\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7218\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2020\/07\/ASPD-4525_3.jpg\" alt=\"\" width=\"1500\" height=\"600\" \/> <a href=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2020\/07\/ASPD-4525_p.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7215\" src=\"https:\/\/www.mateksys.com\/wp-content\/uploads\/2020\/07\/ASPD-4525_p.jpg\" alt=\"\" width=\"1500\" height=\"600\" \/><\/a><\/p>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-24zpss-2add5b3c83b6ac4272f325877ffdc59a'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='tab' role='tab' tabindex='0' data-fake-id='#tab-id-2' aria-controls='tab-id-2-content'  itemprop=\"headline\" >Spec. &amp; Wiring<\/div><div id='tab-id-2-content' class='tab_content' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><h4>Specifications<\/h4>\n<ul>\n<li>Board Supply voltage: 4~5.5V DC<\/li>\n<li><strong>Sensor: TE\u00a0 4525DO-DS5AI001DP<\/strong><\/li>\n<li>Working current: 5mA<\/li>\n<li>Output: I2C (SCL &amp; SDA)<\/li>\n<li>Pressure Ranges: 1 PSI (6.89kPa)<\/li>\n<li>Maximum Pressure: 20 PSI (137.9kPa)<\/li>\n<li>Operating Temperature: -40\u00b0C ~ 125\u00b0C<\/li>\n<li>Accuracy: \u00b10.25% SPAN<\/li>\n<li>Red LED:\u00a0 power indicator<\/li>\n<li>JST-GH sequence: 5V, SCL, SDA, GND<\/li>\n<li>Weight: 3.5g (sensor board)<\/li>\n<\/ul>\n<h4>Including<\/h4>\n<ul>\n<li>1x ASPD-4525 Sensor Board.<\/li>\n<li>1x JST-GH-4P to JST-GH-4P 20cm silicon wire<\/li>\n<li>Pitot Tube.<\/li>\n<li>Clear silicon tubing\u00a0 40cm<\/li>\n<\/ul>\n<h4>Wiring<\/h4>\n<ul>\n<li>5V to FC 4~5.5V<\/li>\n<li>SCL to FC I2C_SCL<\/li>\n<li>SDA to FC I2C_SDA<\/li>\n<li>G to FC GND<\/li>\n<\/ul>\n<h4>Tips<\/h4>\n<ul>\n<li>You can check the airspeed reading with Mission Planner or INAV configurator. Just blow on the pitot tube or press your finger over it and observe the response. In still air oscillation between zero and small values (2-3\/s) is normal.<\/li>\n<li><strong>The airspeed varies with the square root of the pressure, so for differential pressures near zero it varies quite a bit with very small pressure changes, while at flying speeds it takes much greater pressure changes to produce a similar change in speed.<\/strong><\/li>\n<li>If you see mostly 0~2m\/s, with an occasional bounce to 3~4m\/s, consider it normal. You will not see that sort of variability at flying speeds.<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":7224,"comment_status":"closed","ping_status":"closed","template":"","tags":[148,168],"portfolio_entries":[175,246],"class_list":["post-7212","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","tag-airspeed-sensor","tag-pitot","portfolio_entries-ardupilot","portfolio_entries-sensors"],"_links":{"self":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/7212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/types\/portfolio"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7212"}],"version-history":[{"count":3,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/7212\/revisions"}],"predecessor-version":[{"id":13142,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/portfolio\/7212\/revisions\/13142"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=\/wp\/v2\/media\/7224"}],"wp:attachment":[{"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7212"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7212"},{"taxonomy":"portfolio_entries","embeddable":true,"href":"https:\/\/www.mateksys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fportfolio_entries&post=7212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}