{"id":69158,"date":"2023-08-30T06:00:36","date_gmt":"2023-08-30T04:00:36","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/modul-wifi-co-to-jest-i-gdzie-jest-wykorzystywany\/"},"modified":"2026-04-08T11:07:24","modified_gmt":"2026-04-08T09:07:24","slug":"modul-wifi-co-to-je-a-kde-se-pouziva","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/modul-wifi-co-to-je-a-kde-se-pouziva\/","title":{"rendered":"Modul WIFI – co to je a kde se pou\u017e\u00edv\u00e1?"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 3<\/span> min.<\/span><\/span>\t\t
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Integrace WiFi znamen\u00e1 snadn\u00fd p\u0159\u00edstup k internetu, komunikaci mezi za\u0159\u00edzen\u00edmi, mobilitu a pohodl\u00ed. Dne\u0161n\u00ed komunika\u010dn\u00ed za\u0159\u00edzen\u00ed si bez n\u011bj lze jen t\u011b\u017eko p\u0159edstavit. Vysv\u011btl\u00edme v\u00e1m, jak\u00e9 speci\u00e1ln\u00ed p\u0159\u00edslu\u0161enstv\u00ed je k tomu ur\u010deno, to znamen\u00e1 moduly WiFi.<\/strong><\/a><\/p>\n

Modul WiFi<\/strong> je elektronick\u00e9 za\u0159\u00edzen\u00ed obsahuj\u00edc\u00ed specializovan\u00e9 polovodi\u010dov\u00e9 \u010dipy, kter\u00e9 umo\u017e\u0148uj\u00ed p\u0159ipojen\u00ed k bezdr\u00e1tov\u00e9 s\u00edti WiFi. Modul WiFi slou\u017e\u00ed jako komunika\u010dn\u00ed rozhran\u00ed mezi za\u0159\u00edzen\u00edm a s\u00edt\u00ed WiFi a umo\u017e\u0148uje p\u0159enos dat pomoc\u00ed standardu IEEE 802.11. Mezi elektroniky, pro kter\u00e9 je toto odv\u011btv\u00ed pon\u011bkud specializovan\u011bj\u0161\u00ed ne\u017e smartphony nebo tablety, se moduly WiFi pou\u017e\u00edvaj\u00ed jako dopl\u0148kov\u00e1 sou\u010d\u00e1st za\u0159\u00edzen\u00ed, jako jsou mikrokontrol\u00e9ry, mikropo\u010d\u00edta\u010de, v\u00fdvojov\u00e9 desky a dal\u0161\u00ed elektronick\u00e9 obvody, nap\u0159\u00edklad pod zna\u010dkou Raspberry Pi<\/strong><\/a> a Arduino<\/strong><\/a>. T\u00edmto zp\u016fsobem lze umo\u017enit p\u0159ipojen\u00ed k internetu nebo k jin\u00fdm za\u0159\u00edzen\u00edm v m\u00edstn\u00ed s\u00edti i za\u0159\u00edzen\u00edm, kter\u00e1 p\u016fvodn\u011b nebyla vybavena WiFi. Odtud u\u017e nen\u00ed daleko k aplikac\u00edm internetu v\u011bc\u00ed (IoT) nebo syst\u00e9m\u016fm dom\u00e1c\u00ed automatizace. smart home.<\/strong><\/a><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u00davod do modul\u016f WiFi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Samotn\u00e9 slovo “modularita” jako by mnoho za\u010d\u00e1te\u010dn\u00edk\u016f odrazovalo. M\u00edt smartphone<\/strong> s mo\u017enost\u00ed WiFi<\/strong> nebo tetheringu<\/strong> a vyu\u017e\u00edvat jeho funkce v\u00e1s nutn\u011b nevede k tomu, abyste se sna\u017eili pochopit, jak vlastn\u011b funguje.<\/p>\n

Moduly WiFi pro za\u010d\u00e1te\u010dn\u00edky jsou v\u0161ak ur\u010deny k usnadn\u011bn\u00ed integrace funkc\u00ed WiFi do elektronick\u00fdch projekt\u016f. Jsou ur\u010deny pro lidi bez v\u011bt\u0161\u00edch zku\u0161enost\u00ed s programov\u00e1n\u00edm nebo elektronikou, tak\u017ee se pom\u011brn\u011b snadno pou\u017e\u00edvaj\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
Modul WiFi ESP8266 + NodeMCU v3.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tZKONTROLUJTE U SPOLE\u010cNOSTI BOTLAND<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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V\u011bt\u0161ina WiFi modul\u016f pro za\u010d\u00e1te\u010dn\u00edky podporuje popul\u00e1rn\u00ed v\u00fdvojov\u00e9 platformy, jako je Arduino, Raspberry Pi<\/strong> atd. D\u00edky tomu m\u016f\u017eete snadno za\u010d\u00edt navrhovat, ani\u017e byste museli pronikat do specifikac\u00ed za\u0159\u00edzen\u00ed. V\u00fdrobci poskytuj\u00ed podrobnou dokumentaci a p\u0159\u00edklady k\u00f3du, kter\u00e9 v\u00e1m pomohou za\u010d\u00edt s modulem pracovat a umo\u017en\u00ed v\u00e1m pochopit, jak modul funguje, a realizovat prvn\u00ed projekty. V\u011bt\u0161ina modul\u016f pro za\u010d\u00e1te\u010dn\u00edky m\u00e1 tak\u00e9 integrovan\u00e9 ant\u00e9ny, tak\u017ee nen\u00ed nutn\u00e9 konstruovat a p\u0159izp\u016fsobovat extern\u00ed ant\u00e9ny – koneckonc\u016f z\u00e1liba v designu a kutilstv\u00ed nemus\u00ed nutn\u011b znamenat, \u017ee chcete v\u0161e konstruovat od nuly. A kone\u010dn\u011b, snadno pochopiteln\u00e1 a snadno pou\u017eiteln\u00e1 rozhran\u00ed maj\u00ed standardn\u00ed konektory, jako je UART, SPI nebo I2C, kter\u00e9 lze naj\u00edt prakticky v\u0161ude.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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P\u0159ipojen\u00ed modulu WiFi nen\u00ed tak obt\u00ed\u017en\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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St\u00e1le v\u00edce modul\u016f WiFi je kompatibiln\u00edch s obl\u00edben\u00fdmi v\u00fdvojov\u00fdmi deskami platformy Arduino<\/strong><\/a>\u0159ada za\u0159\u00edzen\u00ed Raspberry Pi<\/strong><\/a>nebo ESP32<\/strong><\/a>. Tyto desky maj\u00ed integrovan\u00e9 konektory a odpov\u00eddaj\u00edc\u00ed knihovny, kter\u00e9 usnad\u0148uj\u00ed komunikaci s modulem. Ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f sta\u010d\u00ed p\u0159ipojit modul k p\u0159\u00edslu\u0161n\u00fdm pin\u016fm a pou\u017e\u00edt hotov\u00e9 knihovny pro \u0159\u00edzen\u00ed komunikace WiFi.<\/p>\n

Pokud hovo\u0159\u00edme o rozhran\u00edch UART (Universal Asynchronous Receiver\/Transmitter) nebo SPI (Serial Peripheral Interface), p\u0159ipojen\u00ed modulu WiFi prost\u0159ednictv\u00edm t\u011bchto rozhran\u00ed vy\u017eaduje p\u0159ipojen\u00ed k vys\u00edla\u010di (TX), p\u0159ij\u00edma\u010di (RX), nap\u00e1jen\u00ed a zemn\u00edc\u00edm kol\u00edk\u016fm. N\u011bkter\u00e9 moduly WiFi lze p\u0159ipojit p\u0159\u00edmo k p\u0159\u00edslu\u0161n\u00fdm pin\u016fm GPIO<\/strong> v mikrokontrol\u00e9rech nebo mikropo\u010d\u00edta\u010d\u00edch. Tato metoda vy\u017eaduje nastaven\u00ed p\u0159\u00edslu\u0161n\u00fdch pin\u016f jako vstupn\u00edch\/v\u00fdstupn\u00edch a naprogramov\u00e1n\u00ed podpory komunikace WiFi. Prvn\u00edm krokem je v\u017edy pe\u010dliv\u00e9 p\u0159e\u010dten\u00ed dokumentace modulu a platformy, se kterou bude integrov\u00e1n, aby bylo mo\u017en\u00e9 spr\u00e1vn\u011b nakonfigurovat p\u0159ipojen\u00ed a programov\u00e1n\u00ed. Doporu\u010dujeme v\u00e1m zejm\u00e9na sezn\u00e1mit se s rozhran\u00edmi GPIO, jejich\u017e univerz\u00e1lnost v mikrokontrol\u00e9rech a mikropo\u010d\u00edta\u010d\u00edch umo\u017e\u0148uje pracovat se za\u0159\u00edzen\u00edmi, jako jsou senzory, LED diody, displeje nebo tla\u010d\u00edtka, a odtud u\u017e nen\u00ed daleko k programov\u00e1n\u00ed a DIY projekt\u016fm.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Standardy neboli verze modul\u016f WiFi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Historie modul\u016f WiFi od roku 2000 je velmi dynamick\u00e1. V\u00fdvoj technologi\u00ed se zrychlil s rostouc\u00ed popt\u00e1vkou po bezdr\u00e1tov\u00e9m p\u0159ipojen\u00ed k internetu. V letech 2000-2001 byly uvedeny na trh prvn\u00ed moduly WiFi kompatibiln\u00ed se standardem IEEE 802.11b<\/strong>, kter\u00e9 nab\u00edzely maxim\u00e1ln\u00ed p\u0159enosovou rychlost a\u017e 11 Mb\/s. To byl p\u0159elomov\u00fd okam\u017eik ve v\u00fdvoji technologie WiFi, proto\u017ee umo\u017e\u0148ovala relativn\u011b rychl\u00e9 bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed pro dom\u00e1c\u00ed u\u017eivatele a mal\u00e9 firmy. Za\u010dala skute\u010dn\u00e1 revoluce, kter\u00e1 se projevuje zejm\u00e9na rostouc\u00edm po\u010dtem poskytovatel\u016f “sousedsk\u00e9ho internetu” a charakteristick\u00fdmi “WiFi krabi\u010dkami”, kter\u00e9 zdob\u00ed fas\u00e1dy budov. B\u011bhem n\u011bkolika let po zaveden\u00ed standardu 802.11b se objevily moduly WiFi kompatibiln\u00ed s nov\u011bj\u0161\u00edmi standardy 802.11g<\/strong> (a\u017e 54 Mb\/s) a 802.11n<\/strong> (a\u017e 300 Mb\/s). To umo\u017enilo je\u0161t\u011b rychlej\u0161\u00ed a stabiln\u011bj\u0161\u00ed bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed. V letech 2006-2007 se objevily moduly WiFi s technologi\u00ed MIMO (Multiple-Input Multiple-Output)<\/strong>, kter\u00e1 umo\u017e\u0148uje vys\u00edlat a p\u0159ij\u00edmat v\u00edce datov\u00fdch tok\u016f sou\u010dasn\u011b. Op\u011bt se zv\u00fd\u0161ila kapacita a zlep\u0161ila kvalita spojen\u00ed. Tento trend pokra\u010doval p\u0159es standardy 802.11ac a 802.11ax (WiFi 6)<\/strong> a\u017e k v\u00fdkonu nad 1 Gb\/s, jak jej zn\u00e1me dnes. Mnoho modul\u016f WiFi dnes podporuje i dal\u0161\u00ed frekvence, nap\u0159\u00edklad 5 GHz, \u010d\u00edm\u017e se lze vyhnout p\u0159et\u00ed\u017een\u00ed p\u00e1sma 2,4 GHz a dos\u00e1hnout stabiln\u011bj\u0161\u00edho p\u0159ipojen\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Integrace WiFi znamen\u00e1 snadn\u00fd p\u0159\u00edstup k internetu, komunikaci mezi za\u0159\u00edzen\u00edmi, mobilitu a pohodl\u00ed. Dne\u0161n\u00ed komunika\u010dn\u00ed za\u0159\u00edzen\u00ed si bez n\u011bj lze jen t\u011b\u017eko p\u0159edstavit. Vysv\u011btl\u00edme v\u00e1m, jak\u00e9 speci\u00e1ln\u00ed p\u0159\u00edslu\u0161enstv\u00ed je k tomu ur\u010deno, konkr\u00e9tn\u011b moduly WiFi.<\/p>\n","protected":false},"author":21,"featured_media":68753,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549,560],"tags":[],"class_list":["post-69158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs","category-poradenstvi"],"acf":[],"yoast_head":"\nModul WIFI - co to je a kde se pou\u017e\u00edv\u00e1? - Botland<\/title>\n<meta name=\"description\" content=\"Tipy, DIY projekty, v\u017edy n\u011bco pro za\u010d\u00e1te\u010dn\u00edky, v\u017edy n\u011bco pro pokro\u010dil\u00e9 - nav\u0161tivte n\u00e1s v obchod\u011b Botland a na blogu Botland!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/modul-wifi-co-to-je-a-kde-se-pouziva\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modul WIFI - co to je a kde se pou\u017e\u00edv\u00e1? 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