[Terror]

Kuluks väike abi ära mikrokontrolleri abil veebilehelt väärtuse lugemisega.

https://github.com/nmattisson/HttpClient <- selline library on kasutada.
Aadress kust väärtust on vaja lugeda on: https://thingspeak.com/channels/24877/fields/1/last.json

Vaja oleks sealt saada boldiga väärtused (st sobiks, kui saaks terve selle rea alustuseks ning hijlem vaataks kuidas filtreerida) : ("created_at":"2015-01-29T06:32:06Z","entry_id":15,"field1":"17.9")}

Kuna pole netist andmete tõmbamisega eelnevalt kokku puutunud, siis ei oska suurt midagi peale hakata. All library näidis kus muutsin veebilehe aadressi õigeks, mida seal veel muuta oleks vaja?

[riaak]

https://github.com/bblanchon/ArduinoJson

[Terror]

Sain asja funksima.

Hetke kood selline (tahaks puhastamist saada):

Spoiler

// This #include statement was automatically added by the Spark IDE. #include "HttpClient/HttpClient.h" // This #include statement was automatically added by the Spark IDE. #include "TimeAlarms/TimeAlarms.h" // This #include statement was automatically added by the Spark IDE. #include "Adafruit_mfGFX/Adafruit_mfGFX.h" // This #include statement was automatically added by the Spark IDE. #include "Adafruit_ILI9341/Adafruit_ILI9341.h" char displayText[64]; Adafruit_ILI9341 tft = Adafruit_ILI9341(A2, A1, A0); float minTemp = 100; float maxTemp = -100; float hetkeTemp = 0; int update = 0; int i=0; String timeStr; String timeMax; String timeMin; unsigned long check = 0; unsigned int uptime = 0; HttpClient http; // Headers currently need to be set at init, useful for API keys etc. http_header_t headers[] = {       { "Content-Type", "application/json" },      // { "Accept" , "application/json" },     { "Accept" , "*/*"},     { NULL, NULL } // NOTE: Always terminate headers will NULL }; http_request_t request; http_response_t response;       void setup() {     Time.zone(+2);     Alarm.alarmRepeat(01,00,00, MidnightAlarm);      Alarm.timerRepeat(20, Repeats);     Serial.begin(9600);    tft.begin();     tft.fillScreen(ILI9341_WHITE); } void loop() {             //digitalClockDisplay();               Serial.println();     Alarm.delay(100); } void Repeats(){     Serial.println();     Serial.println("Application>\tStart of Loop.");     // Request path and body can be set at runtime or at setup.     request.hostname = "api.thingspeak.com";     request.port = 80;     request.path = "/channels/24877/fields/1/last.json?key";     // The library also supports sending a body with your request:     //request.body = "{\"key\":\"value\"}";     // Get request     http.get(request, response, headers);     Serial.print("Application>\tResponse status: ");     Serial.println(response.status);     if(response.status == 200){         Serial.print("Application>\tHTTP Response Body: ");                 String web = response.body;         String aeg2 = web.substring(28,34);         String aeg1 = web.substring(26,28);         int gmt = atof(aeg1.c_str());         int tund = gmt + 2;                 timeStr = "";         timeStr += tund;         timeStr += aeg2;         timeStr += "";             int last = web.lastIndexOf('"');         int previous = web.lastIndexOf('"', last - 1 );         String result = web.substring(previous+1, last);         hetkeTemp = atof(result.c_str());                 Serial.println(timeStr);                    uptime=millis()/1000/60/60;                 if(hetkeTemp>-40 && hetkeTemp <50){             if (minTemp>hetkeTemp){                                 minTemp=hetkeTemp;                 timeMin = "";                 if(Time.hour()<10){timeMin +=" ";}                timeMin += Time.hour();                timeMin += ":";                if(Time.minute()<10){timeMin +="0";}                timeMin += Time.minute();             }             if (maxTemp<hetkeTemp){                                 maxTemp=hetkeTemp;                 timeMax = "";                 if(Time.hour()<10){timeMax +=" ";}                timeMax += Time.hour();                timeMax += ":";                if(Time.minute()<10){timeMax +="0";}                timeMax += Time.minute();             }                             tft.setRotation(1);             tft.setTextColor(ILI9341_BLACK, ILI9341_WHITE);                         tft.setTextSize(2);             tft.setCursor(160,3);             tft.print(uptime);                         tft.setTextSize(8);             tft.setCursor(40,30);             if(hetkeTemp>0){tft.print("+");}             tft.print(hetkeTemp,1);                         tft.setTextSize(3);             tft.setCursor(40,120);             tft.print("MAX ");             tft.setTextSize(2);             tft.setCursor(40,145);             tft.print(timeMax);             tft.setCursor(150,120);             tft.setTextSize(5);             if(maxTemp>0){tft.print("+");}             tft.print(maxTemp,1);                         tft.setTextSize(3);             tft.setCursor(40,170);             tft.print("MIN ");             tft.setTextSize(2);             tft.setCursor(40,195);             tft.print(timeMin);             tft.setCursor(150,170);             tft.setTextSize(5);             if(minTemp>0){tft.print("+");}             tft.print(minTemp,1);                         tft.setTextSize(2);             tft.setCursor(110,222);             tft.print(timeStr);         }     } } void MidnightAlarm(){         minTemp = hetkeTemp;     maxTemp = hetkeTemp;     Spark.syncTime(); }

Temp andur ise selline:

Kasutasin ära seinal olevat suuremat elektri harukarpi. Näitab hetke tempi, jooksva päeva max/min tempi koos nende kellaaegadega ning all olev aeg näitab millal tempi uuendati. Üleval olev 0 on uptime tundides - testimise eesmärgil hetkel.