{"id":1159,"date":"2016-01-29T06:57:19","date_gmt":"2016-01-29T05:57:19","guid":{"rendered":"http:\/\/iot.fkainka.de\/?p=1159"},"modified":"2016-01-29T07:45:31","modified_gmt":"2016-01-29T06:45:31","slug":"wettbewerbsbeitrag-wassermelder-mit-twitter-alarmmeldung","status":"publish","type":"post","link":"https:\/\/iot.fkainka.de\/en\/wettbewerbsbeitrag-wassermelder-mit-twitter-alarmmeldung","title":{"rendered":"Wettbewerbsbeitrag: Wassermelder mit Twitter-Alarmmeldung"},"content":{"rendered":"

<\/p>\n

Beitrag zum Kalenderwettbewerb<\/a> 2015 von\u00a0Bernhard Kaiser &\u00a0Michael Gaus<\/h2>\n

 <\/p>\n

Bei diesem Projekt handelt es sich um einen Wassermelder, der optisch, akustisch und per Twitter-Meldung Alarm gibt, sobald an den Sensorkontakten Wasser detektiert wird. Er kann z.B. zur \u00dcberwachung auf austretendes Wasser aus Waschmaschine oder Sp\u00fclmaschine dienen und helfen, rechtzeitig vor gr\u00f6\u00dferen \u00dcberschwemmungen eingreifen zu k\u00f6nnen. Als Sensorkontakt k\u00f6nnen einfach 2 Dr\u00e4hte mit abisolierten Enden genommen werden, so wie es auch auf dem Foto zu sehen ist. Verwendet wurden ausschlie\u00dflich die Bauteile der beiden Adventskalender.<\/p>\n

\"Schaltpl\"<\/a><\/p>\n

Schaltplan<\/p>\n<\/div>\n

Im Ruhezustand der Schaltung sperrt die Darlingtonstufe bestehend aus den beiden Transistoren T1 und T2. Bei Benetzung mit Wasser am Sensorkontakt J1 entsteht eine leitf\u00e4hige Verbindung, sodass die Darlingtonstufe durchschaltet und die rote LED1 eingeschaltet wird. Zus\u00e4tzlich wird durch den LOW-Pegel am Kollektor das IoT-Modul (NanoESP) \u00fcber den Digitaleingang D2 getriggert, sodass dann per Software eine Twitter-Meldung als weltweiter Alarm abgesetzt wird. Damit jedoch nicht die ganze Welt im Klartext das Wasserleck mitbekommt, erfolgt die Twitter-Textmeldung in bester Geheimdienst-Manier:
\n„Achtung, alle Mann an Bord! Das Boot ist bereit zum Ablegen!“ \":-)\"
\nZus\u00e4tzlich wird per Software ein optisches (gelbe LED2 blinkt) und akustisches Alarmsignal per Piezo solange erzeugt, bis der Sensorkontakt keine leitf\u00e4hige Verbindung mehr hat. Somit ist der Alarm auch direkt lokal vor Ort seh- und h\u00f6rbar.<\/p>\n

Als Basis f\u00fcr die Software wurde das Projekt „Alarmanlage“ (Tag 21 des IoT-Adventskalenders)<\/a> verwendet und entsprechend abge\u00e4ndert.
\nGanz oben im Quellcode m\u00fcssen f\u00fcr die 3 Defines SSID, PASSWORD und TwitterKEY anstatt der Platzhalter die entsprechenden Werte eingetragen werden. Ben\u00f6tigt werden ein Thingspeak und ein Twitter Account, so wie im IoT-Adventskalender beschrieben.<\/p>\n

Download: Arduino Programm<\/p>\n

<\/a><\/h3>\n

Noch ein Hinweis zur Software:
\nDie Arduino-Stringverarbeitung verwendet dynamisch allokierten Heap-Speicher, wobei es zu einer starken Fragmentierung kommen kann. Dies kann zu RAM-Problemen f\u00fchren. Da in den Adventskalender-Beispielen sehr viele Strings angelegt und hintereinander geh\u00e4ngt werden, kann dies teilweise zu scheinbar unerkl\u00e4rlichem Softwareverhalten f\u00fchren und sogar Softwareabst\u00fcrze zur Folge haben, da es zum \u00dcberschreiben von RAM-Inhalten kommen kann. Als beispielsweise in dieser Softwareanpassung f\u00fcr den Wassermelder der zu sendende Twitter-Text l\u00e4nger gemacht wurde als im Adventskalender-Beispiel, hat das Versenden der Twitter-Meldung zun\u00e4chst nicht mehr funktioniert. Um statisch verwendetes RAM zu sparen, sodass mehr RAM f\u00fcr den dynamischen Heap zur Verf\u00fcgung steht, wurden deshalb hier Strings, die als Debugausgabe auf der seriellen Schnittstelle ausgegeben werden, ins Flash gelegt mit folgendem Mechanismus: statt „Textausgabe“ wird verwendet: F(„Textausgabe“).
\nBeispiel:
\ndebug(F(„WLAN Connected“));<\/p>\n

\n
\nDer Quelltext\n<\/div>\n
\n
\/*<\/span>\r\nWassermelder Alarm<\/span>\r\nSSID, PASSWORD und TwitterKEY muessen angepasst werden<\/span>\r\n*\/<\/span>\r\n\r\n#define<\/span> SSID<\/span> \"[Your SSID]\"<\/span>\r\n#define<\/span> PASSWORD<\/span> \"[Your Password]\"<\/span>\r\n#define<\/span> TwitterKEY<\/span> \"[Your Key]\"<\/span>\r\n\r\n#define<\/span> SENSOR_INPUT<\/span> 7<\/span> \u00a0\/\/ Wasser-Sensor ist am digital input D2 abgeschlossen<\/span>\r\n#define<\/span> LED_ALARM<\/span> \u00a0\u00a0\u00a09<\/span> \u00a0\/\/ Alarm-LED ist am digital input D3 angeschlossen<\/span>\r\n#define<\/span> PIEZO<\/span> 8<\/span>\r\n\r\n#define<\/span> LED_WLAN<\/span> 13<\/span>\r\n\r\n#define<\/span> DEBUG<\/span> true<\/span>\r\n\r\n#include<\/span> <<\/span>SoftwareSerial<\/span><\/b>.<\/span>h<\/span>><\/span>\r\nSoftwareSerial<\/span><\/b> esp8266<\/span>(<\/span>11<\/span>,<\/span> 12<\/span>)<\/span>;<\/span> \/\/ RX, TX<\/span>\r\n\r\nconst<\/span> byte<\/span> thingPost<\/span>[<\/span>]<\/span> PROGMEM<\/span> =<\/span> {<\/span>\r\n \u00a080<\/span>,<\/span> 79<\/span>,<\/span> 83<\/span>,<\/span> 84<\/span>,<\/span> 32<\/span>,<\/span> 42<\/span>,<\/span> 85<\/span>,<\/span> 82<\/span>,<\/span> 76<\/span>,<\/span> 42<\/span>,<\/span> 32<\/span>,<\/span> 72<\/span>,<\/span> 84<\/span>,<\/span> 84<\/span>,<\/span> 80<\/span>,<\/span> 47<\/span>,<\/span> 49<\/span>,<\/span> 46<\/span>,<\/span> 49<\/span>,<\/span> 10<\/span>,<\/span> 72<\/span>,<\/span> 111<\/span>,<\/span> 115<\/span>,<\/span> 116<\/span>,<\/span> 58<\/span>,<\/span> 32<\/span>,<\/span> 97<\/span>,<\/span> 112<\/span>,<\/span> 105<\/span>,<\/span> 46<\/span>,<\/span> 116<\/span>,<\/span> 104<\/span>,<\/span> 105<\/span>,<\/span> 110<\/span>,<\/span> 103<\/span>,<\/span> 115<\/span>,<\/span> 112<\/span>,<\/span> 101<\/span>,<\/span> 97<\/span>,<\/span> 107<\/span>,<\/span> 46<\/span>,<\/span> 99<\/span>,<\/span> 111<\/span>,<\/span> 109<\/span>,<\/span> 10<\/span>,<\/span> 67<\/span>,<\/span> 111<\/span>,<\/span> 110<\/span>,<\/span> 110<\/span>,<\/span> 101<\/span>,<\/span> 99<\/span>,<\/span> 116<\/span>,<\/span> 105<\/span>,<\/span> 111<\/span>,<\/span> 110<\/span>,<\/span> 58<\/span>,<\/span> 32<\/span>,<\/span> 99<\/span>,<\/span> 108<\/span>,<\/span> 111<\/span>,<\/span> 115<\/span>,<\/span> 101<\/span>,<\/span> 10<\/span>,<\/span> 67<\/span>,<\/span> 111<\/span>,<\/span> 110<\/span>,<\/span> 116<\/span>,<\/span> 101<\/span>,<\/span> 110<\/span>,<\/span> 116<\/span>,<\/span> 45<\/span>,<\/span> 84<\/span>,<\/span> 121<\/span>,<\/span> 112<\/span>,<\/span> 101<\/span>,<\/span> 58<\/span>,<\/span> 32<\/span>,<\/span> 97<\/span>,<\/span> 112<\/span>,<\/span> 112<\/span>,<\/span> 108<\/span>,<\/span> 105<\/span>,<\/span> 99<\/span>,<\/span> 97<\/span>,<\/span> 116<\/span>,<\/span> 105<\/span>,<\/span> 111<\/span>,<\/span> 110<\/span>,<\/span> 47<\/span>,<\/span> 120<\/span>,<\/span> 45<\/span>,<\/span> 119<\/span>,<\/span> 119<\/span>,<\/span> 119<\/span>,<\/span> 45<\/span>,<\/span> 102<\/span>,<\/span> 111<\/span>,<\/span> 114<\/span>,<\/span> 109<\/span>,<\/span> 45<\/span>,<\/span> 117<\/span>,<\/span> 114<\/span>,<\/span> 108<\/span>,<\/span> 101<\/span>,<\/span> 110<\/span>,<\/span> 99<\/span>,<\/span> 111<\/span>,<\/span> 100<\/span>,<\/span> 101<\/span>,<\/span> 100<\/span>,<\/span> 10<\/span>,<\/span> 67<\/span>,<\/span> 111<\/span>,<\/span> 110<\/span>,<\/span> 116<\/span>,<\/span> 101<\/span>,<\/span> 110<\/span>,<\/span> 116<\/span>,<\/span> 45<\/span>,<\/span> 76<\/span>,<\/span> 101<\/span>,<\/span> 110<\/span>,<\/span> 103<\/span>,<\/span> 116<\/span>,<\/span> 104<\/span>,<\/span> 58<\/span>,<\/span> 32<\/span>,<\/span> 42<\/span>,<\/span> 76<\/span>,<\/span> 69<\/span>,<\/span> 78<\/span>,<\/span> 42<\/span>,<\/span> 10<\/span>,<\/span> 10<\/span>,<\/span> 42<\/span>,<\/span> 65<\/span>,<\/span> 80<\/span>,<\/span> 80<\/span>,<\/span> 69<\/span>,<\/span> 78<\/span>,<\/span> 68<\/span>,<\/span> 42<\/span>,<\/span> 10<\/span>\r\n}<\/span>;<\/span>\r\n\r\n\r\nvoid<\/span> setup<\/span>(<\/span>)<\/span> {<\/span>\r\n \u00a0Serial<\/span><\/b>.<\/span>begin<\/span>(<\/span>19200<\/span>)<\/span>;<\/span>\r\n \u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>\"Wassermelder\"<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0esp8266<\/span>.<\/span>begin<\/span>(<\/span>19200<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0if<\/span> (<\/span>!<\/span>espConfig<\/span>(<\/span>)<\/span>)<\/span> serialDebug<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0else<\/span> digitalWrite<\/span>(<\/span>LED_WLAN<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0pinMode<\/span>(<\/span>SENSOR_INPUT<\/span>,<\/span> INPUT<\/span>)<\/span>;<\/span>\r\n \u00a0pinMode<\/span>(<\/span>LED_ALARM<\/span>,<\/span> OUTPUT<\/span>)<\/span>;<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> loop<\/span>(<\/span>)<\/span> \r\n{<\/span>\r\n \u00a0if<\/span>(<\/span>digitalRead<\/span>(<\/span>SENSOR_INPUT<\/span>)<\/span> ==<\/span> LOW<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0alarm<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0else<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span>(<\/span>F<\/span>(<\/span>\"Alles im trockenen Bereich.\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0delay<\/span>(<\/span>500<\/span>)<\/span>;<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> alarm<\/span>(<\/span>void<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0debug<\/span>(<\/span>F<\/span>(<\/span>\"Achtung, alle Mann an Bord! Das Boot ist bereit zum Ablegen!\"<\/span>)<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0sendTwitterPost<\/span>(<\/span>TwitterKEY<\/span>,<\/span> \"Achtung, alle Mann an Bord! Das Boot ist bereit zum Ablegen!\"<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0do<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_ALARM<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0tone<\/span>(<\/span>PIEZO<\/span>,<\/span> 400<\/span>,<\/span> 500<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0delay<\/span>(<\/span>500<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_ALARM<\/span>,<\/span> LOW<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0tone<\/span>(<\/span>PIEZO<\/span>,<\/span> 800<\/span>,<\/span> 500<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0delay<\/span>(<\/span>500<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0while<\/span> (<\/span>digitalRead<\/span>(<\/span>SENSOR_INPUT<\/span>)<\/span> ==<\/span> LOW<\/span>)<\/span>;<\/span>\r\n\r\n}<\/span>\r\n\r\nboolean<\/span> sendTwitterPost<\/span>(<\/span>String<\/span> key<\/span>,<\/span> String<\/span> twitterMsg<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0String<\/span> \u00a0Host<\/span> =<\/span> \"api.thingspeak.com\"<\/span>;<\/span>\r\n \u00a0String<\/span> Url<\/span> =<\/span> \"\/apps\/thingtweet\/1\/statuses\/update\"<\/span>;<\/span>\r\n \u00a0String<\/span> msg<\/span> =<\/span> \"&status=\"<\/span> +<\/span> twitterMsg<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPSTART=\"TCP\",\"\"<\/span> +<\/span> Host<\/span> +<\/span> \"\",80\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0String<\/span> postRequest<\/span> =<\/span> createThingPost<\/span>(<\/span>Url<\/span>,<\/span> key<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\r\n \u00a0if<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CIPSEND=\"<\/span> +<\/span> String<\/span>(<\/span>postRequest<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>,<\/span> \">\"<\/span>)<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0esp8266<\/span>.<\/span>print<\/span>(<\/span>postRequest<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span> (<\/span>postRequest<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0esp8266<\/span>.<\/span>find<\/span>(<\/span>\"SEND OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPCLOSE\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0else<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> =<\/span> false<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\n\r\n\/\/-----------------------------------------ThingsSpeak Functions------------------------------------<\/span>\r\n\r\nboolean<\/span> sendThingPost<\/span>(<\/span>String<\/span> key<\/span>,<\/span> int<\/span> value<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0String<\/span> \u00a0Host<\/span> =<\/span> \"api.thingspeak.com\"<\/span>;<\/span>\r\n \u00a0String<\/span> msg<\/span> =<\/span> \"field1=\"<\/span> +<\/span> String<\/span>(<\/span>value<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPSTART=\"TCP\",\"\"<\/span> +<\/span> Host<\/span> +<\/span> \"\",80\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0String<\/span> postRequest<\/span> =<\/span> createThingPost<\/span>(<\/span>\"\/update\"<\/span>,<\/span> key<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0if<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CIPSEND=\"<\/span> +<\/span> String<\/span>(<\/span>postRequest<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>,<\/span> \">\"<\/span>)<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0esp8266<\/span>.<\/span>print<\/span>(<\/span>postRequest<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0esp8266<\/span>.<\/span>find<\/span>(<\/span>\"SEND OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>!<\/span>esp8266<\/span>.<\/span>find<\/span>(<\/span>\"CLOSED\"<\/span>)<\/span>)<\/span> succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPCLOSE\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0else<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> =<\/span> false<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\nString<\/span> createThingPost<\/span>(<\/span>String<\/span> url<\/span>,<\/span> String<\/span> key<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0String<\/span> xBuffer<\/span>;<\/span>\r\n\r\n \u00a0for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <=<\/span> sizeof<\/span>(<\/span>thingPost<\/span>)<\/span>;<\/span> i<\/span>++<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0char<\/span> myChar<\/span> =<\/span> pgm_read_byte_near<\/span>(<\/span>thingPost<\/span> +<\/span> i<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0xBuffer<\/span> +=<\/span> myChar<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0String<\/span> append<\/span> =<\/span> \"api_key=\"<\/span> +<\/span> key<\/span> +<\/span> \"&\"<\/span> +<\/span> msg<\/span>;<\/span>\r\n\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*URL*\"<\/span>,<\/span> url<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*LEN*\"<\/span>,<\/span> String<\/span>(<\/span> append<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*APPEND*\"<\/span>,<\/span> append<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> xBuffer<\/span>;<\/span>\r\n}<\/span>\r\n\r\nString<\/span> createThingGet<\/span>(<\/span>String<\/span> url<\/span>,<\/span> String<\/span> key<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0String<\/span> xBuffer<\/span>;<\/span>\r\n\r\n \u00a0for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <=<\/span> sizeof<\/span>(<\/span>thingPost<\/span>)<\/span>;<\/span> i<\/span>++<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0char<\/span> myChar<\/span> =<\/span> pgm_read_byte_near<\/span>(<\/span>thingPost<\/span> +<\/span> i<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0xBuffer<\/span> +=<\/span> myChar<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0String<\/span> append<\/span> =<\/span> \"api_key=\"<\/span> +<\/span> key<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"POST\"<\/span>,<\/span> \"GET\"<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*URL*\"<\/span>,<\/span> url<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*LEN*\"<\/span>,<\/span> String<\/span>(<\/span> append<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*APPEND*\"<\/span>,<\/span> append<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> xBuffer<\/span>;<\/span>\r\n}<\/span>\r\n\r\nString<\/span> createThingGet<\/span>(<\/span>String<\/span> url<\/span>,<\/span> String<\/span> key<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0String<\/span> xBuffer<\/span>;<\/span>\r\n\r\n \u00a0for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <=<\/span> sizeof<\/span>(<\/span>thingPost<\/span>)<\/span>;<\/span> i<\/span>++<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0char<\/span> myChar<\/span> =<\/span> pgm_read_byte_near<\/span>(<\/span>thingPost<\/span> +<\/span> i<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0xBuffer<\/span> +=<\/span> myChar<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0String<\/span> append<\/span> =<\/span> \"api_key=\"<\/span> +<\/span> key<\/span> +<\/span> \"&\"<\/span> +<\/span> msg<\/span>;<\/span>\r\n\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"POST\"<\/span>,<\/span> \"GET\"<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*URL*\"<\/span>,<\/span> url<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*LEN*\"<\/span>,<\/span> String<\/span>(<\/span> append<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0xBuffer<\/span>.<\/span>replace<\/span>(<\/span>\"*APPEND*\"<\/span>,<\/span> append<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> xBuffer<\/span>;<\/span>\r\n}<\/span>\r\n\r\n\r\n\/\/-----------------------------------------Config ESP8266------------------------------------<\/span>\r\n\r\nboolean<\/span> espConfig<\/span>(<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0esp8266<\/span>.<\/span>setTimeout<\/span>(<\/span>5000<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+RST\"<\/span>,<\/span> \"ready\"<\/span>)<\/span>;<\/span>\r\n \u00a0esp8266<\/span>.<\/span>setTimeout<\/span>(<\/span>1000<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0if<\/span> (<\/span>configStation<\/span>(<\/span>SSID<\/span>,<\/span> PASSWORD<\/span>)<\/span>)<\/span> {<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> &=<\/span> true<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span>(<\/span>F<\/span>(<\/span>\"WLAN Connected\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span>(<\/span>F<\/span>(<\/span>\"My IP is:\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span>(<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIFSR\"<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0else<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> &=<\/span> false<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\/\/shorter Timeout for faster wrong UPD-Comands handling<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPMUX=0\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPMODE=0\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\nboolean<\/span> configTCPServer<\/span>(<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPMUX=1\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPSERVER=1,80\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n\r\n}<\/span>\r\n\r\nboolean<\/span> configTCPClient<\/span>(<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CIPMUX=0\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\/\/succes &= (sendCom(\"AT+CIPSERVER=1,80\", \"OK\"));<\/span>\r\n\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n\r\n}<\/span>\r\n\r\n\r\nboolean<\/span> configStation<\/span>(<\/span>String<\/span> vSSID<\/span>,<\/span> String<\/span> vPASSWORT<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CWMODE=1\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0esp8266<\/span>.<\/span>setTimeout<\/span>(<\/span>20000<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CWJAP=\"\"<\/span> +<\/span> String<\/span>(<\/span>vSSID<\/span>)<\/span> +<\/span> \"\",\"\"<\/span> +<\/span> String<\/span>(<\/span>vPASSWORT<\/span>)<\/span> +<\/span> \"\"\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0esp8266<\/span>.<\/span>setTimeout<\/span>(<\/span>1000<\/span>)<\/span>;<\/span>\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\nboolean<\/span> configAP<\/span>(<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CWMODE=2\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>\"AT+CWSAP=\"NanoESP\",\"\",5,0\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\nboolean<\/span> configUDP<\/span>(<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPMODE=0\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> (<\/span>sendCom<\/span>(<\/span>F<\/span>(<\/span>\"AT+CIPMUX=0\"<\/span>)<\/span>,<\/span> \"OK\"<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPSTART=\"UDP\",\"192.168.255.255\",90,91,2\"<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span> \/\/Importand Boradcast...Reconnect IP<\/span>\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\n\r\n\r\n\r\n\/\/-----------------------------------------------Controll ESP-----------------------------------------------------<\/span>\r\n\r\nboolean<\/span> sendUDP<\/span>(<\/span>String<\/span> Msg<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0boolean<\/span> succes<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n \u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>\"AT+CIPSEND=\"<\/span> +<\/span> String<\/span>(<\/span>Msg<\/span>.<\/span>length<\/span>(<\/span>)<\/span> +<\/span> 2<\/span>)<\/span>,<\/span> \">\"<\/span>)<\/span>;<\/span> \u00a0\u00a0\u00a0\/\/+\",\"192.168.4.2\",90\", \">\");<\/span>\r\n \u00a0if<\/span> (<\/span>succes<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0succes<\/span> &=<\/span> sendCom<\/span>(<\/span>Msg<\/span>,<\/span> \"OK\"<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0return<\/span> succes<\/span>;<\/span>\r\n}<\/span>\r\n\r\n\r\nboolean<\/span> sendCom<\/span>(<\/span>String<\/span> command<\/span>,<\/span> char<\/span> respond<\/span>[<\/span>]<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0esp8266<\/span>.<\/span>println<\/span>(<\/span>command<\/span>)<\/span>;<\/span>\r\n \u00a0if<\/span> (<\/span>esp8266<\/span>.<\/span>findUntil<\/span>(<\/span>respond<\/span>,<\/span> \"ERROR\"<\/span>)<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0return<\/span> true<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0else<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0debug<\/span>(<\/span>\"ESP SEND ERROR: \"<\/span> +<\/span> command<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0return<\/span> false<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n\r\nString<\/span> sendCom<\/span>(<\/span>String<\/span> command<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0esp8266<\/span>.<\/span>println<\/span>(<\/span>command<\/span>)<\/span>;<\/span>\r\n \u00a0return<\/span> esp8266<\/span>.<\/span>readString<\/span>(<\/span>)<\/span>;<\/span>\r\n}<\/span>\r\n\r\n\r\n\r\n\/\/-------------------------------------------------Debug Functions------------------------------------------------------<\/span>\r\nvoid<\/span> serialDebug<\/span>(<\/span>)<\/span> {<\/span>\r\n \u00a0while<\/span> (<\/span>true<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>esp8266<\/span>.<\/span>available<\/span>(<\/span>)<\/span>)<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>write<\/span>(<\/span>esp8266<\/span>.<\/span>read<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>Serial<\/span><\/b>.<\/span>available<\/span>(<\/span>)<\/span>)<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0esp8266<\/span>.<\/span>write<\/span>(<\/span>Serial<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> debug<\/span>(<\/span>String<\/span> Msg<\/span>)<\/span>\r\n{<\/span>\r\n \u00a0if<\/span> (<\/span>DEBUG<\/span>)<\/span>\r\n \u00a0{<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>Msg<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n\r\n<\/pre>\n
[collapse]<\/div>\n<\/div>\n<\/div>\n
Der Beitrag Wettbewerbsbeitrag: Wassermelder mit Twitter-Alarmmeldung<\/a> erschien zuerst auf Elektronik Dachbude<\/a>.<\/p>\n
Source: fkainka.de\/pretzelboard<\/p>","protected":false},"excerpt":{"rendered":"
Beitrag zum Kalenderwettbewerb 2015 von\u00a0Bernhard Kaiser &\u00a0Michael Gaus   Bei diesem Projekt handelt es sich um einen Wassermelder, der optisch, akustisch und per Twitter-Meldung Alarm gibt, sobald an den Sensorkontakten Wasser detektiert wird. Er kann z.B. zur \u00dcberwachung auf austretendes…
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