{"id":513,"date":"2014-11-17T12:19:00","date_gmt":"2014-11-17T11:19:00","guid":{"rendered":"http:\/\/www.xpablo.cz\/?p=513"},"modified":"2014-11-17T12:19:00","modified_gmt":"2014-11-17T11:19:00","slug":"lymet-vnejsi-jednotka-meteostanice-cast-i-elektronika","status":"publish","type":"post","link":"http:\/\/www.xpablo.cz\/?p=513","title":{"rendered":"LyMet &#8211; vn\u011bj\u0161\u00ed jednotka meteostanice, \u010d\u00e1st I. &#8211; elektronika"},"content":{"rendered":"<p><a href=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8463_web.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-514 alignleft\" src=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8463_web-300x225.jpg\" alt=\"IMG_8463_web\" width=\"300\" height=\"225\" srcset=\"http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8463_web-300x225.jpg 300w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8463_web-1024x768.jpg 1024w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8463_web.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>U\u017e n\u011bkolikr\u00e1t jsem se zm\u00ednil o tajupln\u00e9m &#8222;v\u011bt\u0161\u00edm projektu&#8220;, na kter\u00e9m ve voln\u00e9m \u010dase pracuji a mysl\u00edm, \u017ee nastal \u010das se rozepsat o jeho dal\u0161\u00ed \u010d\u00e1sti &#8211; vn\u011bj\u0161\u00ed jednotce meteostanice.<!--more--> Jde o desku senzor\u016f a bezdr\u00e1tov\u00e9 komunikace, \u0159\u00edzenou procesorem se zavad\u011b\u010dem Arduina, nap\u00e1jenou z baterie, kter\u00e1 je dob\u00edjen\u00e1 ze sol\u00e1rn\u00edho \u010dl\u00e1nku. Vlastnosti jednotky jsou:<\/p>\n<ul>\n<li>M\u011b\u0159en\u00ed teploty a relativn\u00ed vlhkosti \u010didlem SHT11, nebo levn\u011bj\u0161\u00edm (a tak\u00e9 m\u00e9n\u011b p\u0159esn\u00fdm) DHT22.<\/li>\n<li>M\u011b\u0159en\u00ed atmosf\u00e9rick\u00e9ho tlaku \u010didlem BMP-180.<\/li>\n<li>M\u011b\u0159en\u00ed rychlosti a sm\u011bru v\u011btru \u010didly k meteostanici WH1080.<\/li>\n<li>M\u011b\u0159en\u00ed sr\u00e1\u017eek \u010didlem k meteostanici WH1080.<\/li>\n<li>Detektor blesk\u016f s AS3935.<\/li>\n<li>Bezdr\u00e1tov\u00e1 komunikace pomoc\u00ed modulu s NRF24L01.<\/li>\n<li>Spr\u00e1va baterie a jej\u00ed dob\u00edjen\u00ed s obvody BQ27210 a BQ24072.<\/li>\n<\/ul>\n<p>Celkov\u00e9 sch\u00e9ma zapojen\u00ed vypad\u00e1 takto:<\/p>\n<p><a href=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/Scchematics_web.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-516\" src=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/Scchematics_web-300x212.png\" alt=\"Scchematics_web\" width=\"300\" height=\"212\" srcset=\"http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/Scchematics_web-300x212.png 300w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/Scchematics_web-1024x723.png 1024w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/Scchematics_web.png 1334w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>V\u011bt\u0161inou se jedn\u00e1 o t\u00e9m\u011b\u0159 katalogov\u00e9 zapojen\u00ed jednotliv\u00fdch komponent, za zm\u00ednku v\u0161ak stoj\u00ed vyu\u017eit\u00ed BQ24072 LiPol nab\u00edje\u010de. Zde jsem se inspiroval <a href=\"https:\/\/learn.adafruit.com\/usb-dc-and-solar-lipoly-charger\/overview\" target=\"_blank\">konstrukc\u00ed z Adafruit<\/a>, kde vtipn\u011b pou\u017eili PWM nab\u00edje\u010d LiPol bateri\u00ed tak, \u017ee dos\u00e1hli (t\u00e9m\u011b\u0159) shodn\u00e9ho v\u00fdsledku, jako p\u0159i pou\u017eit\u00ed MPPT m\u011bni\u010de. Vzhledem k tomu, \u017ee \u010dip\u00a0 MCP73871 nebyl u Farnella v t\u00e9 dob\u011b skladem, jsem byl nucen hledat alternativu. Na\u0161el jsem BQ24072, kter\u00fd je svou vnit\u0159n\u00ed strukturou velmi podobn\u00fd a byl skladem.<\/p>\n<p>Pro jednoduchost konstrukce jsem plo\u0161n\u00fd spoj navrhl jako jednostrann\u00fd s n\u011bkolika m\u00e1lo propojkami a sou\u010d\u00e1stkami SMT.<\/p>\n<p><a href=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8464_web.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-517\" src=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8464_web-300x225.jpg\" alt=\"IMG_8464_web\" width=\"300\" height=\"225\" srcset=\"http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8464_web-300x225.jpg 300w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8464_web-1024x768.jpg 1024w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/11\/IMG_8464_web.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Sch\u00e9ma a plo\u0161n\u00fd spoj byly nakresleny v m\u00e9m obl\u00edben\u00e9m Kicadu a kompletn\u00ed projekt je mo\u017en\u00e9 st\u00e1hnout na konci tohoto p\u0159\u00edsp\u011bvku.<\/p>\n<p>Sou\u010dasn\u00fd stav je takov\u00fd, \u017ee v\u0161echny senzory m\u00e1m o\u017eiven\u00e9 a funk\u010dn\u00ed &#8211; je mo\u017en\u00e9 m\u011b\u0159it aktu\u00e1ln\u00ed hodnoty, pouze nem\u00e1m ov\u011b\u0159en\u00e9 m\u011b\u0159en\u00ed, poskytovan\u00e9 detektorem blesk\u016f (v tomto ro\u010dn\u00edm obdob\u00ed moc blesk\u016f nen\u00ed). Nab\u00edjen\u00ed baterie ze sol\u00e1rn\u00edho \u010dl\u00e1nku funguje; pr\u016fm\u011brn\u00e1 spot\u0159eba elektroniky se pohybuje kolem 6-7mA (p\u0159edpokl\u00e1d\u00e1m, \u017ee se dostanu je\u0161t\u011b n\u00ed\u017e po vypnut\u00ed lad\u00edc\u00edch v\u00fdpis\u016f na s\u00e9riov\u00e9m portu a podobn\u011b). V\u010dera jsem rozh\u00fdbal z\u00e1kladn\u00ed bezdr\u00e1tovou komunikaci, tak\u017ee m\u016f\u017eu p\u0159istoupit k zalakov\u00e1n\u00ed desky a naps\u00e1n\u00ed fin\u00e1ln\u00ed verze firmware &#8211; o tom ale bude zase dal\u0161\u00ed \u010dl\u00e1nek \ud83d\ude42 . Je\u0161t\u011b jedna pozn\u00e1mka na konec &#8211; celkov\u00e1 sestava vn\u011bj\u0161\u00ed jednotky s \u010didly a vyti\u0161t\u011bn\u00fdmi chyb\u011bj\u00edc\u00edmi d\u00edly bez namontovan\u00e9ho krytu elektroniky by m\u011bla vypadat n\u011bjak takto:<\/p>\n<p><a href=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8760_web.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-432\" src=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8760_web-225x300.jpg\" alt=\"IMG_8760_web\" width=\"225\" height=\"300\" srcset=\"http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8760_web-225x300.jpg 225w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8760_web-768x1024.jpg 768w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8760_web.jpg 900w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a> <a href=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8761_web.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-433\" src=\"https:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8761_web-225x300.jpg\" alt=\"IMG_8761_web\" width=\"225\" height=\"300\" srcset=\"http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8761_web-225x300.jpg 225w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8761_web-768x1024.jpg 768w, http:\/\/www.xpablo.cz\/wp-content\/uploads\/2014\/10\/IMG_8761_web.jpg 900w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>U\u017e n\u011bkolikr\u00e1t jsem se zm\u00ednil o tajupln\u00e9m &#8222;v\u011bt\u0161\u00edm projektu&#8220;, na kter\u00e9m ve voln\u00e9m \u010dase pracuji a mysl\u00edm, \u017ee nastal \u010das se rozepsat o jeho dal\u0161\u00ed \u010d\u00e1sti &#8211; vn\u011bj\u0161\u00ed jednotce meteostanice.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[3,5],"tags":[36],"class_list":["post-513","post","type-post","status-publish","format-standard","hentry","category-arduino","category-elektronika","tag-arduino"],"_links":{"self":[{"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=513"}],"version-history":[{"count":6,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/513\/revisions"}],"predecessor-version":[{"id":522,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/513\/revisions\/522"}],"wp:attachment":[{"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=513"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}