{"id":104,"date":"2014-11-16T15:43:39","date_gmt":"2014-11-16T14:43:39","guid":{"rendered":"http:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/?p=104"},"modified":"2015-12-12T07:35:28","modified_gmt":"2015-12-12T06:35:28","slug":"vanocni-hvezda","status":"publish","type":"post","link":"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/cs\/2014\/11\/vanocni-hvezda\/","title":{"rendered":"V\u00e1no\u010dn\u00ed hv\u011bzda"},"content":{"rendered":"<p style=\"text-align: justify;\"><script>\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[\n\/\/ < ![CDATA[ (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','\/\/www.google-analytics.com\/analytics.js','ga'); ga('create', 'UA-56790486-1', 'auto'); ga('send', 'pageview');\n\/\/ ]]><\/script><\/p>\n<p style=\"text-align: justify;\">Bl\u00ed\u017e\u00ed se v\u00e1noce a tak by se hodila n\u011bjak\u00e1 v\u00e1no\u010dn\u00ed odoba do okna. Cht\u011bl jsem vymyslet n\u011bco, s \u010d\u00edm se zabav\u00edm na v\u00edkend, krom\u011b ledek p\u016fjdou pou\u017e\u00edt sou\u010d\u00e1stky ze \u0161upl\u00edku a budu si moct pohr\u00e1t s programov\u00e1n\u00edm.<br \/>\nPro konstrukci v\u00e1no\u010dn\u00ed hv\u011bzda jsem pou\u017eil univerz\u00e1ln\u00ed plo\u0161n\u00fd spoj, pr\u016fm\u011br hv\u011bzdy je 35cm, aby byla vid\u011bt z ulice.<br \/>\nUniverz\u00e1ln\u00ed pl. spoj moc st\u0159\u00edhat nejde, tak jsem vzal pilku a na\u0159ezal p\u00e1sky, ze kter\u00fdch bude sestavena hv\u011bzda. Spoje p\u00e1sk\u016f jsou zpevn\u011bny dr\u00e1t\u011bn\u00fdmi sponkami a ze zadn\u00ed strany p\u00e1sku je p\u0159iv\u00e1z\u00e1n svazek vodi\u010d\u016f, kter\u00fdm jsou propojeny jednotliv\u00e9 diody. Nakonec je hv\u011bzda docela pevn\u00e1, se svazkem \u0161estn\u00e1cti dr\u00e1t\u016f z LPT kabelu.<br \/>\nHv\u011bzdu jsem p\u00e1skou nalepil na okno a ovl\u00e1dac\u00ed desti\u010dku o kousek d\u00e1l na r\u00e1m okna. Cel\u00e9 je to nap\u00e1jeno z nab\u00edje\u010dky pro mobiln\u00ed telefon, kter\u00e1 m\u00e1 USB konektor.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/DSCN0023-366x274.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/DSCN0023-366x274.jpg\" alt=\"v\u00e1no\u010dn\u00ed hv\u011bzda\" width=\"366\" height=\"274\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/DSCN0018-366x274.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/DSCN0018-366x274.jpg\" alt=\"DSCN0018\" width=\"366\" height=\"274\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">Ledky jsem zapojil do matice, jednotliv\u00e9 sloupce jsou sp\u00edn\u00e1ny dekod\u00e9rem 74138. Proud tekouc\u00ed jednotliv\u00fdmi diodami je omezen rezistory R1 &#8211; R8, jejich\u017e hodnota je spo\u010d\u00edt\u00e1na na proud 14mA. Pokud sv\u00edt\u00ed v\u0161echny diody ve sloupci, je pot\u0159eba proud 112mA, kter\u00fd je sp\u00edn\u00e1n tranzistory.<br \/>\nVstup G2A dekod\u00e9ru otev\u00edr\u00e1 cel\u00fd multiplexer. Kdy\u017e jej p\u0159ipoj\u00edm na PWM kan\u00e1l procesoru, bude mo\u017en\u00e9 plynule \u0159\u00eddit jas hv\u011bzdy. Cel\u00e9 to ovl\u00e1d\u00e1 procesor <a title=\"ATmega8\" href=\"http:\/\/www.gme.cz\/atmega8-16pu-dil28-atmel-p432-201\" target=\"_blank\">ATmega8<\/a>.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/Hvezda_0.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/Hvezda_0.jpg\" alt=\"Hvezda_0\" width=\"694\" height=\"471\" \/><\/a><\/p>\n<h2 style=\"text-align: justify;\">Popis programu<\/h2>\n<p style=\"text-align: justify;\">Obsluhu multiplexeru zaji\u0161\u0165uje program p\u0159eru\u0161en\u00ed od \u010dasova\u010de T1. Inkrementuje prom\u011bnnou Anoda_counter od 0 do 7. Tato hodnota je zkop\u00edrov\u00e1na na port C a t\u00edm se postupn\u011b sp\u00ednaj\u00ed jednotliv\u00e9 sloupce anod ledek. Z\u00e1rove\u0148 je na port D vysl\u00e1na hodnota z pole dat.<\/p>\n<pre class=\"\" style=\"text-align: justify;\">ISR(TIMER1_COMPA_vect) \/\/ podprogram preruseni casovace 1\r\n{\r\n\u00a0\u00a0 \u00a0LED_74138 = Anoda_counter;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \/\/ nove nastaveni dekoderu anod\r\n\u00a0\u00a0 \u00a0LED_Katoda = Array[Counter_blik][Anoda_counter];\u00a0\u00a0 \u00a0 \/\/ nastavi odpovidajici stav Katod\r\n\u00a0\u00a0 \u00a0Anoda_counter++;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \/\/ pocitadlo anod od 0 do 7\r\n\u00a0\u00a0 \u00a0if (Anoda_counter==8) Anoda_counter = 0;\r\n}<\/pre>\n<p style=\"text-align: justify;\">Pole dat je dvojrozm\u011brn\u00e9, je uspo\u0159\u00e1d\u00e1no jako 80 skupin 8 \u010d\u00edsel. Hlavn\u00ed program ur\u010duje skupinu v poli, ze kter\u00e9 program \u010dasova\u010de vyb\u00edr\u00e1 data pro ovl\u00e1d\u00e1n\u00ed katod. Tak\u017ee je postupn\u011b vyb\u00edr\u00e1no 80 kombinac\u00ed, kter\u00fdmi hv\u011bzda sv\u00edt\u00ed. Podprogram \u010dasova\u010de prost\u0159ednictv\u00edm ukazatele Anoda_counter vyb\u00edr\u00e1 data pro multiplexer.<\/p>\n<pre class=\"\" style=\"text-align: justify;\">\u00a0while(1)\r\n\u00a0\u00a0\u00a0 {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0for(Counter_blik=0; Counter_blik&lt;80; Counter_blik++) \/\/ posouva zobrazovani po poli dat\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if(Counter_blik==0)\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0_delay_ms(100);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0for(i=0; i&lt;2; i++)\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0PWM_Blik(800, 40); \/\/ 10us pro kroky PWM, 10ms prodlevy\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0_delay_ms(1500);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0PWM_Blik(800, 40); \/\/ 10us pro kroky PWM, 10ms prodlevy\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0_delay_ms(100);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ((Counter_blik&gt;0) &amp;&amp; (Counter_blik&lt;7))\u00a0 PWM_Blik(10, 40);\r\n\/\/ ovlada rychlost rozsveceni a zhasinani pro ruzne obrazce\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if ((Counter_blik&gt;6) &amp;&amp; (Counter_blik&lt;43)) PWM_Blik(20, 40);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if (Counter_blik&gt;42)\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 PWM_Blik(10, 40);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0\u00a0 }<\/pre>\n<p style=\"text-align: justify;\">Podprogram PWM_Blik pr\u016fb\u011b\u017en\u011b m\u011bn\u00ed hodnotu registru ORC1A, tak\u017ee jednotliv\u00e9 obrazce z diod se postupn\u011b rozsv\u011bcuj\u00ed a zhas\u00ednaj\u00ed.<\/p>\n<pre class=\"\" style=\"text-align: justify;\">void PWM_Blik(unsigned int time, unsigned int del)\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ ridi PWM\r\n{\r\n\u00a0\u00a0 \u00a0int i;\r\n\u00a0\u00a0 \u00a0for (PWM_a=0; PWM_a&lt;4000; PWM_a++)\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ rozsveceni\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0OCR1A = PWM_a;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ nastavi stridu PWM\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0for (i=0; i&lt;time; i++) _delay_us(10);\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0  \u00a0\/\/ rychlost zmeny\r\n\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0 \u00a0LED_R_Set;\r\n\u00a0\u00a0 \u00a0for (i=0; i&lt;del; i++) _delay_ms(10);\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0  \u00a0\u00a0 \u00a0\/\/ sviti 100%, ceka\r\n\u00a0\u00a0 \u00a0LED_R_Clr;\r\n\u00a0\u00a0 \u00a0for (PWM_a=0; PWM_a&lt;4000; PWM_a++)\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ zhasina\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0OCR1A = 4000 - PWM_a;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0 \u00a0\/\/ nastavi stridu PWM\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0for (i=0; i&lt;time; i++) _delay_us(10);\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0 \u00a0\/\/ rychlost zmeny\r\n\u00a0\u00a0 \u00a0} \r\n}<\/pre>\n<p style=\"text-align: justify;\">Nastaven\u00ed port\u016f procesoru:<\/p>\n<pre class=\"\" style=\"text-align: justify;\">\u00a0\u00a0\u00a0 \/\/ * * * * * * * * * * * * * * * * * * * * * * * * * Aktivace vystupnich portu\r\n\u00a0\u00a0 \u00a0PORTD = 0b11111111; \/\/ H-pull up, L vysok\u00e1 impedance\r\n\u00a0\u00a0 \u00a0DDRD\u00a0 = 0b11111111; \/\/ H-output, L-input\r\n\u00a0\u00a0 \u00a0PORTB = 0b00000110;\r\n\u00a0\u00a0 \u00a0DDRB\u00a0 = 0b00000110; \/\/ LEDred a Enable 74HC138\r\n\u00a0\u00a0 \u00a0PORTC = 0b00000111;\r\n\u00a0\u00a0 \u00a0DDRC\u00a0 = 0b00000111; \/\/ adresove vodice 74HC138\r\n\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0Anoda_counter = 0;\r\n\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\/\/ * * * * * * * * * * * * * * * * * * * * * * * * * Aktivace casovace\r\n\u00a0\u00a0 \u00a0TCCR1A = 0b11110010;\u00a0\u00a0   \u00a0\/\/ casovac T1 Frekvence \/ 1024\r\n\u00a0\u00a0 \u00a0TCCR1B = 0b00011001;\u00a0\u00a0   \u00a0\/\/ rezim PWM 14\r\n\u00a0\u00a0 \u00a0TIMSK\u00a0 = 0b00010000;\u00a0\u00a0   \u00a0\/\/ preruseni pri preteceni\r\n\u00a0\u00a0 \u00a0OCR1A\u00a0 = 1000;\r\n\u00a0\u00a0 \u00a0ICR1\u00a0\u00a0 = 4000;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ 100% strida PWM regulace\r\n\u00a0\u00a0 \u00a0SREG\u00a0 |= 0x80;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\/\/ nastavi globalni preruseni\r\n<\/pre>\n<p style=\"text-align: justify;\">Deklarace prom\u011bnn\u00fdch programu:<\/p>\n<pre class=\"\" style=\"text-align: justify;\">volatile unsigned char Anoda_counter;\u00a0\u00a0 \u00a0\/\/ pocitadlo anod obvod 74138\r\nvolatile unsigned char Counter_blik;\u00a0\u00a0 \u00a0 \/\/ ukazatel v poli dat\r\nunsigned int PWM_a;\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0 \/\/ aktualni hodnota PWM\r\nunsigned char i;<\/pre>\n<p style=\"text-align: justify;\">Projekt v\u00e1no\u010dn\u00ed hv\u011bzda pro AVR studio 6.0 <span style=\"color: #0000ff;\"><a href=\"https:\/\/ok2jnj.ok2kld.cz\/ok2jnj\/wp-content\/uploads\/2014\/11\/Hvezda.zip\">Hvezda<\/a><\/span>.<\/p>\n<p style=\"text-align: justify;\">\n<p><iframe loading=\"lazy\"  id=\"_ytid_16850\"  width=\"800\" height=\"450\"  data-origwidth=\"800\" data-origheight=\"450\" src=\"https:\/\/www.youtube.com\/embed\/4ndEBvkTwKA?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bl\u00ed\u017e\u00ed se v\u00e1noce a tak by se hodila n\u011bjak\u00e1 v\u00e1no\u010dn\u00ed odoba do okna. Cht\u011bl jsem vymyslet n\u011bco, s \u010d\u00edm se<\/p>\n","protected":false},"author":1,"featured_media":106,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[49,68],"class_list":["post-104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-programovani","tag-atmega","tag-schema"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>V\u00e1no\u010dn\u00ed hv\u011bzda \u0159\u00edzen\u00e1 procesorem ATmega8<\/title>\n<meta name=\"description\" content=\"V\u00e1no\u010dn\u00ed hv\u011bzda z LED diod sestaven\u00e1 z \u0161upl\u00edkov\u00fdch z\u00e1sob a \u0159\u00edzen\u00e1 procesorem ATmega8\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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