{"id":678,"date":"2015-08-01T19:25:49","date_gmt":"2015-08-01T17:25:49","guid":{"rendered":"http:\/\/www.xpablo.cz\/?p=678"},"modified":"2016-04-10T12:48:21","modified_gmt":"2016-04-10T10:48:21","slug":"esp8266-wifi-konfigurace-trochu-jinak","status":"publish","type":"post","link":"https:\/\/www.xpablo.cz\/?p=678","title":{"rendered":"ESP8266 – Wifi konfigurace trochu jinak"},"content":{"rendered":"

\"espwifisetup\"<\/a>Po n\u00e1stupu Arduina do oblasti WiFi modulk\u016f s ESP8266 se objevila z\u00e1plava projekt\u016f, kter\u00e9 je mo\u017en\u00e9 doma snadno realizovat. Drtiv\u00e1 v\u011bt\u0161ina z nich ale nen\u00ed p\u0159\u00edli\u0161 u\u017eivatelsky p\u0159\u00edv\u011btiv\u00e1 co se t\u00fd\u010de konfigurace bezdr\u00e1tov\u00e9ho p\u0159ipojen\u00ed – pokud si prohl\u00e9dnete zdrojov\u00fd .ino soubor a n\u011bkde v z\u00e1hlav\u00ed objev\u00edte \u0159\u00e1dky ve stylu<\/p>\n

char ssid[] = \"yourNetwork\";\u00a0\u00a0\u00a0 \/\/ your network SSID (name)\r\nchar pass[] = \"secretPassword\"; \/\/ your network password (use for WPA, or use as key for WEP)\r\n<\/pre>\n
tak to znamen\u00e1, \u017ee pro spr\u00e1vnou funkci je t\u0159eba ve zdrojov\u00e9m k\u00f3du tyto parametry upravit, program p\u0159elo\u017eit a takto upraven\u00fd k\u00f3d nahr\u00e1t do ESP. Tento zp\u016fsob konfigurace se mi u\u017e z principu p\u0159\u00ed\u010d\u00ed a i kdy\u017e se ji\u017e objevuj\u00ed snahy o elegantn\u011bj\u0161\u00ed \u0159e\u0161en\u00ed (nap\u0159\u00edklad http:\/\/www.esp8266.com\/viewtopic.php?f=29&t=2520<\/a>) tak to st\u00e1le nen\u00ed to, co bych o\u010dek\u00e1val.
\nR\u00e1d bych tedy p\u0159edstavil moji knihovnu, do zna\u010dn\u00e9 m\u00edry inspirovanou odkazem v\u00fd\u0161e uveden\u00fdm, ale tak\u00e9 rovn\u011b\u017e podstatn\u00fdm zp\u016fsobem vylep\u0161enou.
\nFunguje n\u00e1sleduj\u00edc\u00edm zp\u016fsobem:
\nPo spu\u0161t\u011bn\u00ed programu v ESP knihovna ov\u011b\u0159\u00ed, zda ji\u017e byla konfigurovan\u00e1, nebo zda nen\u00ed vynucen\u00e1 konfigurace (nap\u0159\u00edklad stisknut\u00edm vyhrazen\u00e9ho tla\u010d\u00edtka p\u0159i zap\u00edn\u00e1n\u00ed nap\u00e1jen\u00ed).
\nPokud je t\u0159eba konfigurovat, tak se spust\u00ed Wifi v re\u017eimu otev\u0159en\u00e9ho AP s SSID „ESPPBSetup<\/strong>„.<\/p>\n
\"ssidlist\"<\/a><\/p>\n
Rovn\u011b\u017e b\u011b\u017e\u00ed vnit\u0159n\u00ed DHCP server, tak\u017ee je mo\u017en\u00e9 se k modulu p\u0159ipojit nap\u0159\u00edklad pomoc\u00ed
\nchytr\u00e9ho telefonu. Do prohl\u00ed\u017ee\u010de zad\u00e1me adresu br\u00e1ny (je nastaven\u00e1 na 192.168.4.1) a na webov\u00e9m formul\u00e1\u0159i se zobraz\u00ed seznam okoln\u00edch Wifi s\u00edt\u00ed, s\u00edla jejich sign\u00e1lu a indik\u00e1tor,
\nzda je s\u00ed\u0165 zabezpe\u010den\u00e1, nebo ne.<\/p>\n
\"apselect\"<\/a><\/p>\n
Po\u017eadovanou s\u00ed\u0165 vybereme bu\u010f kliknut\u00edm na odpov\u00eddaj\u00edc\u00ed SSID, nebo ru\u010dn\u011b zaps\u00e1n\u00edm do kolonky SSID. Do vedlej\u0161\u00ed kolonky vypln\u00edme heslo. Zatr\u017e\u00edtko ‚AP mode<\/em>‚ slou\u017e\u00ed pro zvl\u00e1\u0161tn\u00ed p\u0159\u00edpad konfigurace – zjistil jsem toti\u017e, \u017ee pokud p\u0159epneme ESP do re\u017eimu AP, tak je mo\u017en\u00e9 vytvo\u0159it mikros\u00ed\u0165 a\u017e do asi osmi za\u0159\u00edzen\u00ed s t\u00edm, \u017ee ESP, kter\u00fd slou\u017e\u00ed jako AP rovn\u011b\u017e zabezpe\u010duje p\u0159i\u0159azen\u00ed adres pomoc\u00ed DHCP. Nepot\u0159ebujeme-li tedy komunikaci na internet, ale sta\u010d\u00ed n\u00e1m jen lok\u00e1ln\u00ed s\u00ed\u0165 senzor\u016f a aktor\u016f, lze vyu\u017e\u00edt tento re\u017eim.
\nKonfigurace je ukl\u00e1d\u00e1na formou struktury do simulovan\u00e9 EEPROM pam\u011bti ESP8266. Modul s EEPROM pracuje vnit\u0159n\u011b zcela autonomn\u011b, pouze p\u0159edpokl\u00e1d\u00e1, \u017ee EEPROM ji\u017e byla inicializovan\u00e1 v aplikaci vol\u00e1n\u00edm EEPROM.begin(x) a sta\u010d\u00ed mu tak pouze zadat po\u010d\u00e1te\u010dn\u00ed adresu ulo\u017een\u00ed.
\nDal\u0161\u00ed zaj\u00edmavost\u00ed je extern\u00ed<\/strong> objekt webov\u00e9ho serveru – k tomuto \u0159e\u0161en\u00ed m\u011b vedla snaha o \u00fasporu pam\u011bti RAM, tak\u017ee p\u0159edpokl\u00e1d\u00e1m, \u017ee objekt webov\u00e9ho serveru je v cel\u00e9m projektu jen jeden a je sd\u00edlen\u00fd mezi konfigura\u010dn\u00ed knihovnou a aplikac\u00ed.
\nPokud p\u0159i spou\u0161t\u011bn\u00ed nebyl zadan\u00fd po\u017eadavek na konfiguraci a modul ji\u017e nakonfigurovan\u00fd byl, tak se bu\u010f spust\u00ed AP, nebo se pokus\u00ed p\u0159ipojit k nastaven\u00e9 s\u00edti. Pokud se p\u0159ipojen\u00ed nepoda\u0159\u00ed
\nspou\u0161t\u00ed se automaticky konfigura\u010dn\u00ed re\u017eim.
\nKnihovna byla ps\u00e1na se z\u0159etelem na co nejmen\u0161\u00ed zat\u00ed\u017een\u00ed datov\u00e9 pam\u011bti, ale je mo\u017en\u00e9, \u017ee se mi to ne v\u0161ude poda\u0159ilo vy\u0159e\u0161it optim\u00e1ln\u011b.
\nJako bonus jsou exportov\u00e1ny funkce, umo\u017e\u0148uj\u00edc\u00ed \u010dten\u00ed a z\u00e1pis \u0159et\u011bzce z\/do EEPROM na po\u017eadovanou adresu a o maxim\u00e1ln\u00ed zadan\u00e9 d\u00e9lce.
\nTradi\u010dn\u011b je sou\u010d\u00e1st\u00ed arch\u00edvu i p\u0159iklad pou\u017eit\u00ed.<\/p>\n
POZOR, POZOR!!! K dispozici je nov\u011bj\u0161\u00ed verze knihovny, um\u00edst\u011bn\u00e1 zde<\/a>.<\/strong><\/p>\n
\r\n  
\"WiFiConfig\"<\/a><\/div>\r\n  
\r\n    WiFiConfig<\/a>\r\n    \r\n    
\r\n    WiFiConfig.zip
\r\n    \r\n  <\/div>\r\n  
\r\n    0.0 B
\r\n    1775 Downloads
\r\n    Detaily<\/a>\r\n  <\/div>\r\n  
\r\n  \r\n  \r\n   \r\n   \r\n   \r\n   \r\n   \r\n   \r\n   
Datum:<\/strong><\/td>1. srpna  2015<\/td><\/tr>\r\n  <\/table>\r\n  <\/div>\r\n 
<\/div>\r\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Po n\u00e1stupu Arduina do oblasti WiFi modulk\u016f s ESP8266 se objevila z\u00e1plava projekt\u016f, kter\u00e9 je mo\u017en\u00e9 doma snadno realizovat. Drtiv\u00e1 v\u011bt\u0161ina z nich ale nen\u00ed p\u0159\u00edli\u0161 u\u017eivatelsky p\u0159\u00edv\u011btiv\u00e1 co se t\u00fd\u010de konfigurace bezdr\u00e1tov\u00e9ho p\u0159ipojen\u00ed – pokud si prohl\u00e9dnete zdrojov\u00fd .ino soubor a n\u011bkde v z\u00e1hlav\u00ed objev\u00edte \u0159\u00e1dky ve stylu char ssid[] = „yourNetwork“;\u00a0\u00a0\u00a0 \/\/ your … Pokra\u010dov\u00e1n\u00ed textu ESP8266 – Wifi konfigurace trochu jinak<\/span> →<\/span><\/a><\/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":[3,25],"tags":[36,18,19,54],"class_list":["post-678","post","type-post","status-publish","format-standard","hentry","category-arduino","category-esp8266","tag-arduino","tag-esp8266","tag-wifi","tag-wificonfig"],"_links":{"self":[{"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=678"}],"version-history":[{"count":9,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/678\/revisions"}],"predecessor-version":[{"id":759,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=\/wp\/v2\/posts\/678\/revisions\/759"}],"wp:attachment":[{"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xpablo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}