Ph meter v1.0 [SOLVED]

[Alfredo Lambea]

hello would need your help have a ph meter v1.0 and not as connected to the arduino board 2560 besides not whether to modify the sketch addition of isolated temperature probe and ready for water'm doing everything halves this is possible? since I do not ferduino plate
no where to put the sketch
thanks in advance

[Fernando Garcia]

Hi!

Welcome Alfredo!

Which code you want add to Ferduino?

Best regards.

[Alfredo Lambea]

Hi fernando code the following is DFRobot and is showing me the manufacturer but not if I can get it or not is how to connect the arduino mega board 2560

Code: Select all

/*
 # This sample code is used to test the pH meter V1.0.
 # Editor : YouYou
 # Ver    : 1.0
 # Product: analog pH meter
 # SKU    : SEN0161
*/
#define SensorPin A0            //pH meter Analog output to Arduino Analog Input 0
#define Offset 0.00            //deviation compensate
#define LED 13
#define samplingInterval 20
#define printInterval 800
#define ArrayLenth  40    //times of collection
int pHArray[ArrayLenth];   //Store the average value of the sensor feedback
int pHArrayIndex=0;   
void setup(void)
{
  pinMode(LED,OUTPUT); 
  Serial.begin(9600); 
  Serial.println("pH meter experiment!");    //Test the serial monitor
}
void loop(void)
{
  static unsigned long samplingTime = millis();
  static unsigned long printTime = millis();
  static float pHValue,voltage;
  if(millis()-samplingTime > samplingInterval)
  {
      pHArray[pHArrayIndex++]=analogRead(SensorPin);
      if(pHArrayIndex==ArrayLenth)pHArrayIndex=0;
      voltage = avergearray(pHArray, ArrayLenth)*5.0/1024;
      pHValue = 3.5*voltage+Offset;
      samplingTime=millis();
  }
  if(millis() - printTime > printInterval)   //Every 800 milliseconds, print a numerical, convert the state of the LED indicator
  {
   Serial.print("Voltage:");
        Serial.print(voltage,2);
        Serial.print("    pH value: ");
   Serial.println(pHValue,2);
        digitalWrite(LED,digitalRead(LED)^1);
        printTime=millis();
  }
}
double avergearray(int* arr, int number){
  int i;
  int max,min;
  double avg;
  long amount=0;
  if(number<=0){
    Serial.println("Error number for the array to avraging!/n");
    return 0;
  }
  if(number<5){   //less than 5, calculated directly statistics
    for(i=0;i<number;i++){
      amount+=arr[i];
    }
    avg = amount/number;
    return avg;
  }else{
    if(arr[0]<arr[1]){
      min = arr[0];max=arr[1];
    }
    else{
      min=arr[1];max=arr[0];
    }
    for(i=2;i<number;i++){
      if(arr[i]<min){
        amount+=min;        //arr<min
        min=arr[i];
      }else {
        if(arr[i]>max){
          amount+=max;    //arr>max
          max=arr[i];
        }else{
          amount+=arr[i]; //min<=arr<=max
        }
      }//if
    }//for
    avg = (double)amount/(number-2);
  }//if
  return avg;
}

[Fernando Garcia]

This module have only 3 wires:

5 V, GND and Analog pin.

Where's the difficult?

[Alfredo Lambea]

not in this connection that connect but does nothing for me, if not that, or the skecht but the program does not recognize it, and if you do not recognize I'm doing wrong I connect to the analog output 0 and sets in the manual but sees that
Is there to put the skecht which gives the manufacturer or next in ferduino would be worth?
if so how will the skecht gets into Ferduino?

[Fernando Garcia]

If this example doesn't work for you, I can't help you because I haven't hardware to test.

[Alfredo Lambea]

thanks fernando

but the problem is that no where to put the program within ferduino the connection is easy to appreciate you to tell me where or how to get him
thanks again

[Fernando Garcia]

If the code above doesn't work alone (without Ferduino), add this code to Ferduino won't solve your problem.

Only tell me if the example works or not.

Also show me the result that you can see on serial monitor.

[Alfredo Lambea]

While it finds when it comes to my house and tell you but I get ferduino -276 ph values also in the same amount ORP
or moving the potentiometer but not the values moves
without ferduino I have not tried something I try and tedigo
thx

[Fernando Garcia]

It seems joke!
Ferduino NEVER will work with this pH module without changes on code.
Please buy pieces listed on this topic so, maybe I can help you.

[Alfredo Lambea]

anything does not work with the program put in arduino goes blank screen flashes the LED makes loading the program but nothing comes on the display

and if I know that ferduino may not work with this ph meter works with scientific atlas but I'm sure it works well with which I have modified some parameter
if you can help me or know of any page to tell me how to modify these programs you would appreciate
thanks Fernando

[Fernando Garcia]

Look the result on serial monitor as I told above.

[Alfredo Lambea]

hi fernando
Monitor and look what I brand standard and ph 4.84
I think it works perfectly only what I have to calibrate
Now what do I have to do?
for viewing in arduino?

[Fernando Garcia]

Hi!

In the tab "Ferduino" change:

Code: Select all

boolean Stamps = true;

To:

Code: Select all

boolean Stamps = false;

After add:

Code: Select all

#define SensorPin A0            //pH meter Analog output to Arduino Analog Input 14
#define Offset 0.00            //deviation compensate
int pHArray[10];   //Store the average value of the sensor feedback
int pHArrayIndex = 0;   
float pHValue;
unsigned long samplingTime = 0;
unsigned long samplingTime1 = 0;
byte samples = 0;


Remember that pin A0 is used for level sensor so, find a free pin.

Then create a new tab and add this code:

Code: Select all

void readPh()
{
   if((millis()- samplingTime) > 500)
  {
    pHArray[pHArrayIndex] = analogRead(SensorPin);
    pHArrayIndex++;
    samplingTime = millis();
  }
  if((millis()- samplingTime1) > 5000)
  {
    float voltage = avergearray(pHArray, pHArrayIndex - 1)* 5.0 / 1024;
    pHValue += 3.5 * voltage + Offset;
    samplingTime1 = millis();
    samples++;
    pHArrayIndex = 0;
  }   
  if(samples == 12)
  {
    PHA = pHValue / 12;
    samples = 0;
    pHValue = 0;
  } 
}
double avergearray(int* arr, int number){
  int i;
  int max,min;
  double avg;
  long amount=0;
  if(number<=0){
    Serial.println("Error number for the array to avraging!/n");
    return 0;
  }
  if(number<5){   //less than 5, calculated directly statistics
    for(i=0;i<number;i++){
      amount+=arr[i];
    }
    avg = amount/number;
    return avg;
  }
  else{
    if(arr[0]<arr[1]){
      min = arr[0];
      max=arr[1];
    }
    else{
      min=arr[1];
      max=arr[0];
    }
    for(i=2;i<number;i++){
      if(arr[i]<min){
        amount+=min;        //arr<min
        min=arr[i];
      }
      else {
        if(arr[i]>max){
          amount+=max;    //arr>max
          max=arr[i];
        }
        else{
          amount+=arr[i]; //min<=arr<=max
        }
      }//if
    }//for
    avg = (double)amount/(number-2);
  }//if
  return avg;
}


On loop after:

Code: Select all

t = rtc.getTime();

Add:

Code: Select all

readPh();


Best regards.

[Alfredo Lambea]

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡PERFECT FERNANDO SOLVED¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
reads and recognizes only ferduino now I need I calibralo and longer
thank you very much're the best
seguire now trying to place the following modules ETHERNET LED etc .....
if you do not mind if I have any doubt Totra I can consult you with?
many thanks again

[Fernando Garcia]

Hi!

Glad to hear.

Best regards.