{"id":718,"date":"2011-05-01T21:20:39","date_gmt":"2011-05-01T20:20:39","guid":{"rendered":"http:\/\/www.kozeniauskas.com\/itblog\/?p=718"},"modified":"2011-05-01T21:22:21","modified_gmt":"2011-05-01T20:22:21","slug":"led-stair-lighting-based-on-arduino-part-6","status":"publish","type":"post","link":"http:\/\/www.kozeniauskas.com\/itblog\/2011\/05\/01\/led-stair-lighting-based-on-arduino-part-6\/","title":{"rendered":"LED stair lighting based on Arduino, Part 6"},"content":{"rendered":"<p>This project has been frozen for some time but I&#8217;ve picked it up again, not much progress has been done mainly because I don&#8217;t have the electronic components. Buying them in Ireland is a bit expensive so I mainly use Ebay to get them form UK or Asia. The problem with Ebay is that it takes time for the components to arrive.<br \/>\nAnyway I&#8217;ve been playing around with shift register 74HC595 as I&#8217;ve ran out of digital PWM pins on my arduino. By using only 3 digital pins and 74HC595 I can control 8 LEDs but it is also possible to add more\u00a074HC595 and that means more LEDs without using more digital outputs.<br \/>\nThe problem is that \u00a0for my application\u00a074HC595 is not suitable as it does not support PWM. It is possible to make LEDs fade using code but I did not like the results that I was getting.<\/p>\n<p><a href=\"http:\/\/www.kozeniauskas.com\/itblog\/files\/2011\/05\/Shift.jpg\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-719\" title=\"Shift\" src=\"http:\/\/www.kozeniauskas.com\/itblog\/files\/2011\/05\/Shift-300x211.jpg\" alt=\"\" width=\"300\" height=\"211\" srcset=\"http:\/\/www.kozeniauskas.com\/itblog\/files\/2011\/05\/Shift-300x211.jpg 300w, http:\/\/www.kozeniauskas.com\/itblog\/files\/2011\/05\/Shift-1024x721.jpg 1024w, http:\/\/www.kozeniauskas.com\/itblog\/files\/2011\/05\/Shift.jpg 1039w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>The solution is to use TLC5940 which supports PWM.\u00a0So back to the drawing board<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This project has been frozen for some time but I&#8217;ve picked it up again, not much progress has been done mainly because I don&#8217;t have the electronic components. Buying them in Ireland is a bit expensive so I mainly use Ebay to get them form UK or Asia. The problem with Ebay is that it [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[345],"tags":[347,348],"_links":{"self":[{"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/posts\/718"}],"collection":[{"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/comments?post=718"}],"version-history":[{"count":3,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/posts\/718\/revisions"}],"predecessor-version":[{"id":722,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/posts\/718\/revisions\/722"}],"wp:attachment":[{"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/media?parent=718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/categories?post=718"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kozeniauskas.com\/itblog\/wp-json\/wp\/v2\/tags?post=718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}