Help on code for Mysensors 2.0

scalz

Hello.

It seems that you have not converted your old sketch to 2.0 In the new release there is no need of declaring a Mysensor instance like before "Mysensor gw" and some other stuff ..

So, what you can do:

convert your sketch to 2.0. For details see here : https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x
or look at the 2.0 examples sketch to see how it looks now. and don't worry if there is not so much code in new sketch compared to before, the stuff is hidden that's all ;)

If still issues, please post logs so we can help you. without not easy..

stingone

@scalz said:

Hello.

It seems that you have not converted your old sketch to 2.0 In the new release there is no need of declaring a Mysensor instance like before "Mysensor gw" and some other stuff ..

So, what you can do:

convert your sketch to 2.0. For details see here : https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x

or look at the 2.0 examples sketch to see how it looks now. and don't worry if there is not so much code in new sketch compared to before, the stuff is hidden that's all ;)

If still issues, please post logs so we can help you. without not easy..

I will try to change the code. for now i installed the 1.5 again however compiling is fine but it says at the end error uploading sketch thats all no other messages.. i already tried 3 board other usb cable. com ports settings are fine and i can use the serial monitor with the existing code but somehow it wont upload the new.

sundberg84

@stingone - if you get an upload error, its not about the code. Its the connection between computer, usb, uploader and arduino.

Do you have changed drivers for the programmer recently? got the right programmer set in arduino ide? Can you paste the log from arudino ide in here?

scalz

@stingone oki. when it fails to upload (for the error you're describing), try again to upload, that should work. sometimes it can need multiple attempts. it's not mysensors related.

GertSanders

After recompiling to 2.0.0 and uploading to your node, you will also need to bring the gateway to version 2.0.0

A 2.0.0 gateway should work with older nodes. But new 2.0.0 nodes require a 2.0.0 gateway.

stingone

Got it working with another laptop..wil recompile to 2.0 in the weekend.

Just a quick question. I have 2 sensors on 1 arduino. Works fine however sometimes it shows the value of the temp sensor on the value of the ph sensor.

#include <SPI.h>
#include <MySensor.h>
#include <DallasTemperature.h>
#include <OneWire.h>
#include "Vcc.h"        // https://github.com/Yveaux/Arduino_Vcc

static const float VccMin = 0.0;        // Minimum expected Vcc level, in Volts. (0.6V for 1 AA Alkaline)
static const float VccMax = 3.3;        // Maximum expected Vcc level, in Volts. (1.5V for 1 AA Alkaline)
static const float VccCorrection = 3.29 / 3.31;  // Measured Vcc by multimeter divided by reported Vcc
Vcc vcc(VccCorrection);

#define CHILD_ID_PH 0
#define ArrayLenth 10               // times of collection
#define PH_SENSOR_ANALOG_PIN A0         // pH meter Analog output to Arduino Analog Input 0
#define LED_DIGITAL_PIN 13
#define Offset 0.25           //deviation compensate

#define CHILD_ID_TEMP 1
#define COMPARE_TEMP 0 // Send temperature only if changed? 1 = Yes 0 = No
#define ONE_WIRE_BUS 3 // Pin where dallase sensor is connected 
#define MAX_ATTACHED_DS18B20 16

unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature.

unsigned long lastSend = 0;
static const unsigned long SEND_FREQUENCY = 30000;  // Minimum time between send (in milliseconds)

MySensor gw;

float lastPhHValue;

float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors=0;
boolean receivedConfig = false;
boolean metric = true; 

MyMessage msgPH(CHILD_ID_PH, V_VAR1);
MyMessage msg(CHILD_ID_TEMP,V_TEMP);

void setup()
{
    // Startup up the OneWire library
    sensors.begin();
    // requestTemperatures() will not block current thread
    sensors.setWaitForConversion(false);
    
    //gw.begin(NULL, 100, false); //deze gebruiken, 100 is de node_id, die weer gebruiken in pimatic
    gw.begin();
    //Serial.print("0;0;3;0;2;");Serial.print(LIBRARY_VERSION);
    
    pinMode(LED_DIGITAL_PIN, OUTPUT);
    numSensors = sensors.getDeviceCount();
    
    // Send the Sketch Version Information to the Gateway
    gw.sendSketchInfo("pHmeter", "1.1");
    
    // Register all sensors to gw (they will be created as child devices)
    gw.present(CHILD_ID_PH, S_WATER);

    // Present all sensors to controller
    for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
    gw.present(i, S_TEMP);
    }
}

void loop()
{
    // By calling process() you route messages in the background
    gw.process();
    read_PH();
    read_TEMP();

    gw.sleep(SLEEP_TIME);
}

void read_PH(){
   unsigned long now = millis();
    bool sendTime = now - lastSend > SEND_FREQUENCY;
    if (sendTime)
    {
        lastSend = now;
        
        //    float v = vcc.Read_Volts();
        //    Serial.print("VCC = " );
        //    Serial.print(v);
        //    Serial.println(" Volts" );
        
        int batteryPcnt = (int)vcc.Read_Perc(VccMin, VccMax);
        //    Serial.print("VCC = " );
        //    Serial.print(batteryPcnt);
        //    Serial.println(" %" );
        
        gw.sendBatteryLevel(batteryPcnt);
    }
    
    // Read PH_SENSOR_ANALOG_PIN in phValue
    float voltage = analogReadAverage(PH_SENSOR_ANALOG_PIN, 10) * 5.0 / 1024;
    
    // convert the millivolt into pH value
    float PhValue = 3.5 * voltage+Offset;
    
    
    
        Serial.print("    pH:");
        Serial.print(PhValue, 2);
        Serial.println(" ");
        
        gw.send(msgPH.set(PhValue, 2)); // envoi au reseau avec deux decimales
        
        digitalWrite(LED_DIGITAL_PIN, digitalRead(LED_DIGITAL_PIN) ^ 1);
        
        lastPhHValue = PhValue;
    
}


void read_TEMP(){
  sensors.requestTemperatures();

  // query conversion time and sleep until conversion completed
  int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
  // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
  gw.sleep(conversionTime);

  // Read temperatures and send them to controller 
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
 
    // Fetch and round temperature to one decimal
    float temperature = static_cast<float>(static_cast<int>((gw.getConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
 
    // Only send data if temperature has changed and no error
    #if COMPARE_TEMP == 1
    if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
    #else
    if (temperature != -127.00 && temperature != 85.00) {
    #endif
 
      // Send in the new temperature
      gw.send(msg.setSensor(i).set(temperature,1));
      // Save new temperatures for next compare
      lastTemperature[i]=temperature;
    }
  }   
}







double analogReadAverage(uint8_t pin, unsigned long ms)
{
    double average = 0;
    int buffer[ArrayLenth];
    
    for (int i = 0; i < ArrayLenth; i++)
    {
        buffer[i] = analogRead(PH_SENSOR_ANALOG_PIN);
        delay(ms);
    }
    
    if (ArrayLenth < 5)
    {
        // less than 5, calculated directly statistics
        for (int i = 0; i < ArrayLenth; i++)
        {
            average += buffer[i];
        }
        average = average / ArrayLenth;
    }
    else
    {
        // Sort the values from small to large
        for (int i = 0; i < ArrayLenth; i++)
        {
            for (int j = i + 1; j < 10; j++)
            {
                if (buffer[i] > buffer[j])
                {
                    int temp = buffer[i];
                    buffer[i] = buffer[j];
                    buffer[j] = temp;
                }
            }
        }
        
        // take the average value of center sample
        for (int i = 2; i < ArrayLenth - 2; i++)
        {
            average += buffer[i];
        }
        
        average = average / (ArrayLenth - 4);
    }
    
    return average;
}

And in Pimatic

{
      "id": "temperatuur-aquarium",
      "name": "Temperatuur Aquarium",
      "class": "MySensorsDST",
      "nodeid": 2,
      "sensorid": 0
    },
    {
      "id": "phmeter-aquarium",
      "name": "pH Aquarium",
      "class": "MySensorsPH",
      "nodeid": 2,
      "sensorid": 0,
      "batterySensor": false
    },

debug [pimatic-mysensors]: <- MySensorsPH { sender: 2, sensor: 0, type: 0, value: '25.4' }
22:23:06debug [pimatic-mysensors]: <- MySensorDST { sender: 2, sensor: 0, type: 0, value: '25.4' }
22:23:06debug [pimatic-mysensors]: <- I_LOG_MESSAGE 0;0;3;0;9;read: 2-2-0 s=0,c=1,t=0,pt=7,l=5,sg=0:25.4
22:23:05debug [pimatic-mysensors]: <- MySensorsPH { sender: 2, sensor: 0, type: 24, value: '6.60' }
22:23:05debug [pimatic-mysensors]: <- I_LOG_MESSAGE 0;0;3;0;9;read: 2-2-0 s=0,c=1,t=24,pt=7,l=5,sg=0:6.60

If you look at the output in pimatic you can see that the mysensorsPH and mysensorsDST have the temp value. This happens 50% of the time.

mfalkvidd

@stingone this line

 gw.send(msg.setSensor(i).set(temperature,1));

will set the child id to 0 for the first temp sensor, to 1 for the second and so on. That's why you get temperature data on id 0, which is also used by the ph sensor.

stingone

@mfalkvidd said:

@stingone this line
 gw.send(msg.setSensor(i).set(temperature,1));
will set the child id to 0 for the first temp sensor, to 1 for the second and so on. That's why you get temperature data on id 0, which is also used by the ph sensor.

What would be best to do?

mfalkvidd

It depends on how much work you are prepared to do and how much flexibility you want in the code.

If you only use one temperature sensor and don't have any plans to add more, change

gw.send(msg.setSensor(i).set(temperature,1));

to

gw.send(msg.set(temperature,1));

stingone

@mfalkvidd said:

It depends on how much work you are prepared to do and how much flexibility you want in the code.

If you only use one temperature sensor and don't have any plans to add more, change
gw.send(msg.setSensor(i).set(temperature,1));
gw.send(msg.set(temperature,1));

Only using the ph sensor and 1 temperatuur sensor no need for more temp sensors.

Help on code for Mysensors 2.0

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