{"id":416,"date":"2024-10-18T19:28:00","date_gmt":"2024-10-18T19:28:00","guid":{"rendered":"https:\/\/copperfiction.com\/?p=416"},"modified":"2026-04-09T21:50:49","modified_gmt":"2026-04-09T21:50:49","slug":"multiplexed-resistivity-measurement-system","status":"publish","type":"post","link":"https:\/\/copperfiction.com\/index.php\/2024\/10\/18\/multiplexed-resistivity-measurement-system\/","title":{"rendered":"[031] MULTIPLEXED RESISTIVITY MEASUREMENT SYSTEM"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"871\" height=\"400\" src=\"http:\/\/copperfiction.com\/wp-content\/uploads\/2026\/01\/image1-2.png\" alt=\"\" class=\"wp-image-431\" srcset=\"https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/01\/image1-2.png 871w, https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/01\/image1-2-300x138.png 300w, https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/01\/image1-2-768x353.png 768w\" sizes=\"auto, (max-width: 871px) 100vw, 871px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Measuring resistivity across multiple points without manually rewiring between each measurement \u2014 that was the goal.<\/p>\n\n\n\n<p>Channel selection is handled through I\/O expanders and multiplexing logic. Contacts are made with pogo pins: repeatable, quick to install, no soldering required. The STM32F030 sequences the measurements, does basic signal processing, and talks to the host over USB-C for both power and data.<\/p>\n\n\n\n<p>A well-designed lab tool: compact, portable, and capable of automating a task that would otherwise be slow and prone to human error.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Measuring resistivity across multiple points without manually rewiring between each measurement \u2014 that was the goal. Channel selection is handled through I\/O expanders and multiplexing logic. Contacts are made with pogo pins: repeatable, quick to install, no soldering required. The STM32F030 sequences the measurements, does basic signal processing, and talks to the host over USB-C &#8230; <a title=\"[031] MULTIPLEXED RESISTIVITY MEASUREMENT SYSTEM\" class=\"read-more\" href=\"https:\/\/copperfiction.com\/index.php\/2024\/10\/18\/multiplexed-resistivity-measurement-system\/\" aria-label=\"Read more about [031] MULTIPLEXED RESISTIVITY MEASUREMENT SYSTEM\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[56,52,53,54,55],"class_list":["post-416","post","type-post","status-publish","format-standard","hentry","category-51","tag-laboratory-electronics","tag-multiplexed-measurement","tag-pogo-pins","tag-stm32f030k6t6tr","tag-usb-c"],"_links":{"self":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/comments?post=416"}],"version-history":[{"count":6,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/416\/revisions"}],"predecessor-version":[{"id":639,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/416\/revisions\/639"}],"wp:attachment":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/media?parent=416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/categories?post=416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/tags?post=416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}