Is it Possible to use Electron w/Blynk to Monitor Temp/Humidity Using </= 1MB Data?

Getting Started
41

I’m getting closer. I now have it sending data to Ubidots. None of the data makes sense but at least it’s sending something.

42

I seem to have solved it. I’ll have to keep an eye on it for a bit but so far so good. I’m sure my program is a bit clunky, but here it is for anyone that might want it:

#include <SparkFunRHT03.h>

// This #include statement was automatically added by the Particle IDE.
#include <Ubidots.h>

#ifndef TOKEN
#define TOKEN "mytokenyourswillbedifferent"  // Ubidots TOKEN
#endif

Ubidots ubidots(TOKEN, UBI_TCP); // Comment this line to use another protocol.
//Ubidots ubidots(TOKEN, UBI_HTTP); // Uncomment this line to use HTTP protocol.
//Ubidots ubidots(TOKEN, UBI_UDP); // Uncomment this line to use UDP protocol

    const int RHT03_DATA_PIN = D1;//provides temp & humidity inside van
    RHT03 rht;//creates the RHT object
    
    const int pinOut = A2;//provides temp under van, near macerator (critical component)
    const int pinFridge = A4;//you can guess this one
    
    int tempF = 0;//temp inside van
    int humidity = 0;//humidity inside van
    int tempOut = 0;//outside temp reading
    int tempFridge = 0;//yeah, that one
   
    int SoC = 0;//fuel gauge
    FuelGauge fuel;
   
    int lasttempF = 0;//I'll use these to see if we really need to upload data each time
    int lasthumidity = 0;
    int lasttempOut = 0;
    int lasttempFridge = 0;
    int lastSoC = 0;

    int tempFdelta;
    int humiditydelta;
    int tempOutdelta;
    int tempFridgedelta;
    int SoCdelta;

void setup() {
  //Serial.begin(115200);
  //ubidots.setDebug(true); // Uncomment this line to print debug messages.
  
    rht.begin(RHT03_DATA_PIN);//initialize the RHT sensor
}

void loop() {
    
    int update = rht.update();//get temp and humidity readings from inside the van
    int humidity = rht.humidity();
    int tempF = rht.tempF();
    tempF = (tempF-4);//calibration adjustment

    tempOut = ((((((analogRead(pinOut) * (3.3/4095)) *1000.0) - 500)/10)*(9.0/5.0)) + 32.0);//calibrated
    
    tempFridge = ((((((analogRead(pinFridge) * (3.3/4095)) *1000.0) - 500)/10)*(9.0/5.0)) + (32.0-6.0));
    
    SoC = fuel.getSoC();
    
    //Create logic so only significant readings get uploaded to cloud
        tempFdelta = tempF-lasttempF;
        tempFdelta = abs (tempFdelta);
        if(tempFdelta>2 && tempF < 150){
            //Serial.printlnf("vanTemp %d\n", tempF);
            //Serial.printlnf("lasttempF %d\n", lasttempF);
            //Serial.printlnf("tempFdelta %d\n", tempFdelta);
            ubidots.add("t", tempF);
            lasttempF = tempF;
        }
  
        humiditydelta = humidity-lasthumidity;
        humiditydelta = abs (humiditydelta);
        if(humiditydelta>2){
            //Serial.printlnf("humidity %d\n", humidity);
            ubidots.add("h", humidity);
            lasthumidity = humidity;
        }
        
        tempOutdelta = tempOut-lasttempOut;
        tempOutdelta = abs (tempOutdelta);
        if(tempOutdelta>2 && tempOut < 150){
            //Serial.printlnf("tempOut %d\n", tempOut);
            ubidots.add("o", tempOut);
            lasttempOut = tempOut;
        }
    
        tempFridgedelta = tempFridge-lasttempFridge;
        tempFridgedelta = abs (tempFridgedelta);
        if(tempFridgedelta>2 && tempFridge < 150){
            //Serial.printlnf("fridge %d\n", tempFridge);
            ubidots.add("f", tempFridge);
            lasttempFridge = tempFridge;
        }
        
        SoCdelta = SoC-lastSoC;
        SoCdelta = abs (SoCdelta);
        if(SoCdelta>2){
            //Serial.printlnf("SoC %d\n", SoC);
            ubidots.add("b", SoC);
            lastSoC = SoC;
        }

  bool bufferSent = false;
  bufferSent = ubidots.send(); // Will send data to a device label that matches the device Id

  if(bufferSent){
    //Do something if values were sent properly
    //Serial.println("Values sent by the device");
  }

  delay(1200000);//only want changed data every 20 minutes
}```
43

congrats!
Tip: this delay may be too much for a loop(), there are ways of doing it with millis() that do not block.
Example:

outside loop()
unsigned long tempTime = 0;


in loop()
  if (millis() - tempTime > 1200000)
  {
    tempTime = millis();
    // do your ubidots business here
}

Also, you might want to add:
SYSTEM_THREAD(ENABLED); // Sytem thread is enabled

Again, congrats!

44

At some point I did learn that using delays was an issue and started using millis instead. I was actually a little surprised that I had that long a delay in this program but it worked for four (4) years so I left it in.

I’ll have to look into the SYSTEM_THREAD issue when I have more time. I don’t know what that does nor where to put it. I’ll clean up the program at a later date and incorporate your suggestions.

Thanks again for the assistance and, if nothing else, the encouragement.