{"id":166,"date":"2011-09-29T09:39:54","date_gmt":"2011-09-29T08:39:54","guid":{"rendered":"http:\/\/silent.org.pl\/home\/?p=166"},"modified":"2011-10-27T12:09:46","modified_gmt":"2011-10-27T11:09:46","slug":"evil-floppy-drives-english-translation","status":"publish","type":"post","link":"http:\/\/silent.org.pl\/home\/2011\/09\/29\/evil-floppy-drives-english-translation\/","title":{"rendered":"Evil floppy drives &#8211; English translation"},"content":{"rendered":"<p>Hello! Here&#8217;s an English translation of my previos post. My English isn&#8217;t perfect so there might be some mistakes ;-).  <\/p>\n<p>Summer holidays are comming to an end, I have passed all september exams and now I am procrastinating doing some dumb things instead finishing two other, more serious projects ;-).<br \/>\nHere&#8217;s what polish AGH University of Science and Technology students do in their free time. I&#8217;d like to introduce my another, totally useless device &#8211; a musical floppy drives.<\/p>\n<p>First attempt:<br \/>\n<iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"http:\/\/www.youtube.com\/embed\/GTRqxfnnYUQ\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>And now it&#8217;s time for the double:<br \/>\n<iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"http:\/\/www.youtube.com\/embed\/yHJOz_y9rZE\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<h2>How does it work?<\/h2>\n<p>It&#8217;s nothing new and it&#8217;s very simple. The sound comes from a magnetic head moved by stepper motor. To make a specific sound, head must be moved with appropriate frequency.<br \/>\nFDD has a simple interface &#8211; the description may be found for example <a href=\"http:\/\/www.interfacebus.com\/PC_Floppy_Drive_PinOut.html\">[ HERE ]<\/a>. To move the head you need to activate the drive by pulling the DRVSB0 or 1 (depends on the cable you have and the connector &#8211; notice the crossover on the FDD ribbon cable) pin low and then falling edge on STEP pin makes the head move one step in direction dependent on DIR pin state.<br \/>\nAn ATMega microcontroller is generating those frequencies and it makes the drives play music.<\/p>\n<p><a href=\"http:\/\/silent.org.pl\/images\/floppy1.jpg\" target=\"_blank\"><img decoding=\"async\" class=\"alignnone\" src=\"http:\/\/silent.org.pl\/images\/thumbs\/floppy1.jpg\" border=\"0\" alt=\"\" \/><\/a><\/p>\n<p>Now it&#8217;s tome to call some older buddies (5,25&#8242; or 8&#8242; drivers) and make an orchestra!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hello! Here&#8217;s an English translation of my previos post. My English isn&#8217;t perfect so there might be some mistakes ;-). Summer holidays are comming to an end, I have passed all september exams and now I am procrastinating doing some dumb things instead finishing two other, more serious projects ;-). Here&#8217;s what polish AGH University <a href='http:\/\/silent.org.pl\/home\/2011\/09\/29\/evil-floppy-drives-english-translation\/' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"_links":{"self":[{"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/posts\/166"}],"collection":[{"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/comments?post=166"}],"version-history":[{"count":13,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/posts\/166\/revisions"}],"predecessor-version":[{"id":176,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/posts\/166\/revisions\/176"}],"wp:attachment":[{"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/media?parent=166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/categories?post=166"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/silent.org.pl\/home\/wp-json\/wp\/v2\/tags?post=166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}