Dabble Bluetooth Terminal not allowing input number to be used in calculations

Using Arduino Programming Questions
1

I am a freshman in college and my group and I are working on making a mini oven for our freshman design project. This project uses Dabble's Bluetooth Terminal to receive numbers which are supposed to be used as a basis for other calculations. As it stands, when using the Terminal.readNumber command, I can store the number and print it to the console, but when I try to call on the int value that it's supposed to carry, it's almost as if that number doesn't exist. I have reached out to Dabble's company, and have searched both the web and the forum, but I haven't seen anything similar to what I'm needing help with.

What I'm trying to accomplish is taking the Terminal.readNumber input and store it in the variable setpointF so I can then finish the rest of the temperature calculations. setpointF can be printed to the console with a value, but none of the other calculations work.

I am also using an Arduino Uno board and an HC-05 Bluetooth module with the Dabble app and Library

#define CUSTOM_SETTINGS
#define INCLUDE_TERMINAL_MODULE
#include <Dabble.h>

float setpointF ;
float setpointC;
int setpointA;
int stdev = 1;
int UCL = 0;
int LCL = 0;
int currentTempA = 0;
float currentTempC = 0;
float currentTempF = 0;

int RGBTemp;
int redRGB = 0;
int blueRGB = 0;
int low = 0;
int high = 255;

int redPin = 9;
int bluePin = 11;
int heaterPin = 7;
int fanPin = 4;

int fan;
int heater;

void setup() {
  pinMode(heaterPin, OUTPUT);
  pinMode(fanPin, OUTPUT);
  Dabble.begin(9600);
  Serial.begin(9600);
  
  Terminal.println("Set Temperature?");
}

void loop() {
//The problem starts here
  Dabble.processInput();
  int termNum = Terminal.readNumber();
  if(termNum > 90 && termNum <= 150) {
    setpointF = termNum;
    Terminal.print("Setting to ");Terminal.print(setpointF);Terminal.println(" Degrees F");
  }
  if(Terminal.compareString("warm")) {
    setpointF = 150;
    Terminal.println("Setting to 150 Degrees F");
  }

  setpointC = (setpointF - 32) * (5 / 9);
  //setpointA = (11.702 * setpointC) + 241.57;
  //The problem ends here

  UCL = (11.702 * (((setpointF + (stdev * 3)) - 32) * (5/9))) + 241.57;
  LCL = (11.702 * (((setpointF - (stdev * 3)) - 32) * (5/9))) + 241.57;
  
  currentTempA = analogRead(5);
  RGBTemp = currentTempA;
  
  currentTempC = ((.0855 * currentTempA) - 20.644);
  currentTempF = ((currentTempC * (9 / 5)) + 32);
  
  redRGB = map(RGBTemp, LCL, UCL, low, high);
  blueRGB = map(RGBTemp, LCL, UCL, high, low);
  
  Serial.println("   LCL       Analog Setpoint       Fahrenheit Setpoint       UCL       Analog Temperature       Fahrenheit Temperature");
  Serial.print("   ");Serial.print(LCL);Serial.print("        ");
  Serial.print(setpointC);Serial.print("                   ");
  Serial.print(setpointF);Serial.print("                    ");
  Serial.print(UCL);Serial.print("         ");
  Serial.print(currentTempA);Serial.print("                  ");
  Serial.println(currentTempF);
  Terminal.print("The current temp is ");Terminal.print(currentTempF);Terminal.println(" Degrees F");
  
  if(((RGBTemp < LCL) || (RGBTemp == LCL))) {
    redRGB = 0;
    blueRGB = 255;
    
    digitalWrite(heaterPin, HIGH);
    
    analogWrite(redPin, redRGB);
    analogWrite(bluePin, blueRGB);

    Serial.print("Red RGB = ");Serial.println(redRGB);
    Serial.print("Blue RGB = ");Serial.println(blueRGB);
  }
  
  if((RGBTemp < setpointA)) {
    digitalWrite(fanPin, LOW);
  }
  
  if(((RGBTemp > UCL) || (RGBTemp == UCL))) {
    redRGB = 255;
    blueRGB = 0;
    
    digitalWrite(heaterPin, LOW);
    digitalWrite(fanPin, HIGH);
    
    analogWrite(redPin, redRGB);
    analogWrite(bluePin, blueRGB);

    Serial.print("Red RGB = ");Serial.println(redRGB);
    Serial.print("Blue RGB = ");Serial.println(blueRGB);
  }
  
  if(((RGBTemp > LCL) && (RGBTemp < UCL))) {
    analogWrite(redPin, redRGB);
    analogWrite(bluePin, blueRGB);

    Serial.print("Red RGB = ");Serial.println(redRGB);
    Serial.print("Blue RGB = ");Serial.println(blueRGB);
  }
  
  heater = digitalRead(heaterPin);
  fan = digitalRead(fanPin);
  
  if((heater == 0)) {
    Serial.println("Heater = Off");
  }
  
  if((heater == 1)) {
    Serial.println("Heater = On");
  }
  
  if((fan == 0)) {
    Serial.println("Fan = Off");
  }
  
  if((fan == 1)) {
    Serial.println("Fan = On");
  }
  
  Serial.println();
  Serial.println();
  delay(4000);
}
2

What Arduino board?

Post a schematic, please.

3

you might want to check if Terminal.available(): before calling Terminal.readNumber();

4

Thank you, I knew I was forgetting something. It's and Arudino Uno board and an HC-05 Bluetooth Module

5

How would you recommend going about that?

6

Take a look at the Dabble library example 02.Terminal which show how to read when .avaliable() != 0

7

Alright, Thank you

8

So I went and implemented this part of the code

if(Terminal.available())
  {
    while (Terminal.available() != 0)
    {
      Serial.write(Terminal.read());
    }
    Serial.println();
  }

so that my code now looks like this:

Dabble.processInput();
  if(Terminal.available())
  {
    while (Terminal.available() != 0){
      Serial.write(Terminal.read());
    }
  }
  termNum = Terminal.readNumber();
  if(termNum > 90 && termNum <= 150) {
    setpointF = termNum;
    Terminal.print("Setting to ");Terminal.print(setpointF);Terminal.println(" Degrees F");
  }
  if(Terminal.compareString("warm")) {
    setpointF = 150;
    Terminal.println("Setting to 150 Degrees F");
  }

and both the terminal and the console are not receiving the inputs now.

9

Try this for receiving the number

Dabble.processInput();
  if(Terminal.available())
  {
    while (Terminal.available() != 0){
      //Serial.write(Terminal.read());
      termNum = Terminal.readNumber();
    }
  }
  Serial.println(termNum);
  //termNum = Terminal.readNumber();
  if(termNum > 90 && termNum <= 150) {
    setpointF = termNum;
    Terminal.print("Setting to ");Terminal.print(setpointF);Terminal.println(" Degrees F");
  }
10

probably (?) the second part should be within the if(Terminal.available()) otherwise it will always be executed even if you did not read anything and termNum has not been initialized

11

Yes, I think you are correct.
Revised Code for OP

Dabble.processInput();
if (Terminal.available())
{
  while (Terminal.available() != 0)
  {
    //Serial.write(Terminal.read());
    termNum = Terminal.readNumber();
  }
  Serial.println(termNum);
  //termNum = Terminal.readNumber();
  if (termNum > 90 && termNum <= 150)
  {
    setpointF = termNum;
    Terminal.print("Setting to "); Terminal.print(setpointF); Terminal.println(" Degrees F");
  }
}
12

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