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{"id":171,"date":"2009-04-12T18:37:26","date_gmt":"2009-04-13T01:37:26","guid":{"rendered":"http:\/\/nickhardeman.com\/blog\/?p=171"},"modified":"2015-05-12T21:45:38","modified_gmt":"2015-05-13T04:45:38","slug":"theremin-style-instrument","status":"publish","type":"post","link":"https:\/\/nickhardeman.com\/171\/theremin-style-instrument\/","title":{"rendered":"Squaremin – Theremin Style"},"content":{"rendered":"

<\/iframe><\/p>\n“Squaremin ” name thanks to Collin Cunningham from his post at <a href=\"http:\/\/blog.makezine.com\/2009\/04\/17\/touchless-digital-synth-takes-after\/\" target=\"_blank\">blog.makezine.com<\/a>, this project is also featured on <a href=\"http:\/\/www.engadget.com\/2009\/04\/20\/video-theremin-esque-digital-synth-sure-to-get-brian-wilson-up\/#continued\" target=\"_blank\">engadget.com<\/a>. This battery powered electronic musical instrument is a descendant of the theremin and can be played without contact from the musician. This small instrument contains two infared (IR) sensors that measure proximity. One sensor controls the note, while the other controls the octave that is played through the speaker in the front. The tone is reflected by one of seven colors that illuminates the center area and highlights a small indicator located on the top panel.<\/p>\nThe instrument can play seven octaves each of notes C – B, C ranging between 65 hz – 4160 hz. The notes are being generated based on some code from the <a href=\"http:\/\/www.arduino.cc\/en\/Tutorial\/PlayMelody\" target=\"_blank\">arduino site<\/a>. It’s not incredibly accurate, but gets the job done.<\/p>\nThe instrument utilizes two short range Sharp IR sensors (GP2D120). <a href=\"http:\/\/www.acroname.com\/robotics\/info\/articles\/sharp\/sharp.html\" target=\"_blank\">This article<\/a> clarifies just about everything pertaining to these sensors.<\/p>\nOne of the most challenging parts was the time-line, to be completed in a week and also fitting everything in without time to build custom pcb boards. I utilized a boot-loaded atmega chip in a breadboard and more info can be found at <a href=\"http:\/\/hackduino.org\/mapblog\/\" target=\"_blank\">mapduino.com<\/a><a href=\"http:\/\/hackduino.org\/mapblog\/\" target=\"_blank\">.<\/a> Here is the <a href='http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/Theremin_cm_based.zip'>source code<\/a> if anyone feels like putting one together.<\/p>\n<a href=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/img_2929.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-thumbnail wp-image-172 alignleft\" title=\"Theremin Closed\" src=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/img_2929-150x150.jpg\" alt=\"Theremin Closed\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<a href=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/img_2958.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft size-thumbnail wp-image-177\" title=\"Top of the thermin, open\" src=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/img_2958-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><a rel=\"attachment wp-att-195\" href=\"http:\/\/nickhardeman.com\/171\/theremin-style-instrument\/thereminpurple\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft size-thumbnail wp-image-195\" title=\"theremin purple\" src=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/thereminpurple-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<a href=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/thereminred.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft size-thumbnail wp-image-192\" title=\"theremin red note c highest octave\" src=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/thereminred-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<div id=\"attachment_178\" style=\"width: 210px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/dac.jpg\"><img aria-describedby=\"caption-attachment-178\" decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-178\" title=\"Digital to Analog Converter (DAC)\" src=\"http:\/\/nickhardeman.com\/blog\/wp-content\/uploads\/2009\/04\/dac.jpg\" alt=\"Digital to Analog Converter (DAC)\" width=\"200\" height=\"213\" \/><\/a>Digital to Analog Converter (DAC)<\/p><\/div>\nRecently I put together a digital to analog converter (DAC) based on this <a title=\"DAC Proto Shield\" href=\"http:\/\/blog.makezine.com\/2008\/05\/29\/makeit-protodac-shield-fo\/\" target=\"_blank\">tutorial<\/a> from <a href=\"http:\/\/blog.makezine.com\/\" target=\"_blank\">make.com<\/a>, so that I could get these sounds into my computer. The tute was straight-forward and easy and it works like a gem. Sorry this pic looks like crap, it was taken with my iPhone cam.<\/p>\n","protected":false},"excerpt":{"rendered":"“Squaremin ” name thanks to Collin Cunningham from his post at blog.makezine.com, this project is also featured on engadget.com. This battery powered electronic musical instrument is a descendant of the theremin and can be played without contact from the musician. This small instrument contains two infared (IR) sensors that measure proximity. One sensor controls the […]<\/p>\n","protected":false},"author":2,"featured_media":462,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[76],"tags":[177,22,25,23,24,21],"_links":{"self":[{"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/posts\/171"}],"collection":[{"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/comments?post=171"}],"version-history":[{"count":0,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/posts\/171\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/media\/462"}],"wp:attachment":[{"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/media?parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/categories?post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nickhardeman.com\/wp-json\/wp\/v2\/tags?post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}