{"id":93,"date":"2018-11-22T11:45:54","date_gmt":"2018-11-22T11:45:54","guid":{"rendered":"http:\/\/raisanen.org\/?page_id=93"},"modified":"2019-05-14T19:39:12","modified_gmt":"2019-05-14T19:39:12","slug":"5-ledin-himmennys","status":"publish","type":"page","link":"http:\/\/raisanen.org\/?page_id=93","title":{"rendered":"5. Ledin himmennys"},"content":{"rendered":"<p>T\u00e4ss\u00e4 harjoituksessa himmenn\u00e4mme aikaisemmassa harjoituksessa kytkem\u00e4\u00e4mme ledi\u00e4. Ensin lis\u00e4\u00e4mme toisen kytkimen. Tarvitsemme siis kytkent\u00e4\u00e4n<\/p>\n<ul>\n<li>liitinjohtoja<\/li>\n<li>4,7k\u03a9 vastuksen<\/li>\n<li>painonapin<\/li>\n<\/ul>\n<p>Tee alla olevan kuvan mukainen kytkent\u00e4. Siin\u00e4 siis painonapit on kytketty seuraavasti:<\/p>\n<ul>\n<li>painonappi 1, GPIO17, pin 11, input<\/li>\n<li>painonappi 2, GPIO23, pin 16, input<\/li>\n<li>led, GPIO18, pin 12, output<\/li>\n<\/ul>\n<p><a href=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-156\" src=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb-1024x812.png\" alt=\"\" width=\"870\" height=\"690\" srcset=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb-1024x812.png 1024w, http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb-300x238.png 300w, http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb-768x609.png 768w, http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/teht\u00e4v\u00e45_ledhimmennys_bb.png 1755w\" sizes=\"auto, (max-width: 870px) 100vw, 870px\" \/><\/a><\/p>\n<p>Lis\u00e4\u00e4 Python-ohjelma himmennys.py kansioon \/home\/pi\/Python-ohjelmat\/<\/p>\n<pre class=\" language-bash\"><code class=\" language-bash\">sudo nano himmennys<span class=\"token punctuation\">.<\/span>php<\/code><\/pre>\n<p>Kirjoita alla oleva koodi<\/p>\n<p><a href=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/kuva5-1-2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-155\" src=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/kuva5-1-2.png\" alt=\"\" width=\"641\" height=\"717\" srcset=\"http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/kuva5-1-2.png 641w, http:\/\/raisanen.org\/wp-content\/uploads\/2019\/05\/kuva5-1-2-268x300.png 268w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/a><\/p>\n<p>Kirjoitettuasi ohjelman tallenna se ctrl+o ja paina enteri\u00e4 kun nano kysyy vahvistusta tiedostonimelle\u00a0<em>File Name to Write: himmennys.py<\/em><\/p>\n<p>Voit poistua ohjelmasta ctrl+x.<\/p>\n<p>Kokeillaan ohjelman ajamista antamalla Terminalissa komento<\/p>\n<pre>sudo python himmennys.py<\/pre>\n<p>Painamalla nappeja ledin pit\u00e4isi kirkastua ja himenty\u00e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00e4ss\u00e4 harjoituksessa himmenn\u00e4mme aikaisemmassa harjoituksessa kytkem\u00e4\u00e4mme ledi\u00e4. Ensin lis\u00e4\u00e4mme toisen kytkimen. Tarvitsemme siis kytkent\u00e4\u00e4n liitinjohtoja 4,7k\u03a9 vastuksen painonapin Tee alla<\/p>\n<p class=\"readmore\"><a href=\"http:\/\/raisanen.org\/?page_id=93\" title=\"Read 5. Ledin himmennys\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":83,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-93","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/pages\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/raisanen.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=93"}],"version-history":[{"count":2,"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/pages\/93\/revisions"}],"predecessor-version":[{"id":157,"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/pages\/93\/revisions\/157"}],"up":[{"embeddable":true,"href":"http:\/\/raisanen.org\/index.php?rest_route=\/wp\/v2\/pages\/83"}],"wp:attachment":[{"href":"http:\/\/raisanen.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}