Posts made by Christian Wilhelm

Christian Wilhelm

Hi,

Thanks for the sketch

I managed to find the time library but seem to have a problem with settime I don't understand:

It says 'setTime' was not declared in this scope

: In function 'void receiveTime(long unsigned int)':
New_powermonitor:132: error: 'setTime' was not declared in this scope
setTime(time);
^
: In function 'void loop()':
New_powermonitor:156: error: 'hour' was not declared in this scope
int HH = hour();
^
New_powermonitor:157: error: 'minute' was not declared in this scope
int MM = minute();
^
New_powermonitor:158: error: 'second' was not declared in this scope
int SS = second();
^
: In function 'void displayUpdate()':
277:30: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
myGLCD.print("PWR:", 0, 0); //от края, высота
^
:282:31: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
myGLCD.print("IRM:", 0, 10); //от края, высота
^
:287:31: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
myGLCD.print("MiN:", 0, 20); //от края, высота
^
:292:31: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
myGLCD.print("MaX:", 0, 30); //от края, высота
^
:297:31: warning: deprecated conversion from string constant to 'char*' [-Wwrite-strings]
myGLCD.print("flt:", 0, 40); //от края, высота
^
exit status 1
'setTime' was not declared in this scope

Christian Wilhelm

Yes the sketch was written using MySensors 1.5, but these don't seem to work anymore with the new IDE. I assume to code needs to look quite a bit differently.

Christian Wilhelm

Hi,

Thanks for your help, still struggling to make it work. I have amended the sketch to that:

/*
 This example code is in the public domain. 
 */
 
#include <SPI.h>

#include "EmonLib.h" // Include Emon Library
#include <LCD5110_Graph_SPI.h> // Include NOKIA5110 Library
 
#define CHILD_ID_POWER 0
 
EnergyMonitor emon;
 
LCD5110 myGLCD(5,6,3);
extern unsigned char SmallFont[];
 
MyTransportNRF24 transport(7, 8); //for EMv1
MySensors gw(transport);
 
unsigned long lastSend;
unsigned long SEND_FREQUENCY = 20000; // Minimum time between send (in milliseconds). We don't wnat to spam the gateway.
 
float Irms;
float lastIrms = -99;
 
char tbuf[8];
char sbuf[12];
 
MyMessage IrmsMsg(CHILD_ID_POWER, V_KWH);
 
void setup()  
{ 
  myGLCD.InitLCD();
  myGLCD.setFont(SmallFont);
  myGLCD.update();
 
  // The third argument enables repeater mode.
  begin(NULL, AUTO, true),
  sendSketchInfo("Energy Monitor v1", "1.0");
 
//  emon.current(0, 111.1);             // Current: input pin, calibration.
   emon.current(0, 66.5); 
 

 
void loop()      
{      
  process(); 
  unsigned long now = millis();
 
  double Irms = emon.calcIrms(1480);  // Calculate Irms only
  float realIrms  = emon.Irms*220;        //extract Real Power into variable
 
 if (realIrms != lastIrms) {
      gw.send(IrmsMsg.set(realIrms, 1)); //send to gateway
 
  lastIrms=realIrms;
  }
 
   dtostrf(realIrms,5,2,tbuf);
    sprintf(sbuf, "  %s kWt", tbuf);
    myGLCD.print(sbuf, 20, 0);   
    myGLCD.print("Powr:", 0, 0);  
 
    dtostrf(Irms,5,2,tbuf);
    sprintf(sbuf, "  %s Amp", tbuf);
    myGLCD.print(sbuf, 20, 10);   
    myGLCD.print("Irms:", 0, 10);  
 
    myGLCD.update(); 
 
      Serial.print("Power: ");
      Serial.println(realIrms);
 
  sleep(SEND_FREQUENCY);
  }
  #include <MySensors.h>  // Include MySensors.org Library V2.0

Still get this error message:

Documents/Arduino/libraries/MySensors-master/MySensors.h:287:4: error: #error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.
#error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.
^
exit status 1
Error compiling for board Arduino/Genuino Mega or Mega 2560.

Thanks

Christian

Christian Wilhelm

Hello,

I am trying to get the Energy Monitor Shield from Seeed to work (http://wiki.seeedstudio.com/wiki/Energy_Monitor_Shield_V0.9b) but struggling to use the provided sketch. As far as I know I need to transform the code to make it work with MySensors 2.0. I am rubbish with code (only know a little python) and have no clue where to start or decipher the error messages.

The original code looks like this:

/*
 This example code is in the public domain. 
 */
 
#include <SPI.h>
#include <MySensor.h>  // Include MySensors.org Library V1.5
#include "EmonLib.h" // Include Emon Library
#include <LCD5110_Graph_SPI.h> // Include NOKIA5110 Library
 
#define CHILD_ID_POWER 0
 
EnergyMonitor emon;
 
LCD5110 myGLCD(5,6,3);
extern unsigned char SmallFont[];
 
MyTransportNRF24 transport(7, 8); //for EMv1
MySensor gw(transport);
 
unsigned long lastSend;
unsigned long SEND_FREQUENCY = 20000; // Minimum time between send (in milliseconds). We don't wnat to spam the gateway.
 
float Irms;
float lastIrms = -99;
 
char tbuf[8];
char sbuf[12];
 
MyMessage IrmsMsg(CHILD_ID_POWER, V_KWH);
 
void setup()  
{ 
  myGLCD.InitLCD();
  myGLCD.setFont(SmallFont);
  myGLCD.update();
 
  // The third argument enables repeater mode.
  gw.begin(NULL, AUTO, true),
  gw.sendSketchInfo("Energy Monitor v1", "1.0");
 
//  emon.current(0, 111.1);             // Current: input pin, calibration.
   emon.current(0, 66.5); 
 
  // Register all sensors to gw (they will be created as child devices)
 
  gw.present(CHILD_ID_POWER, S_POWER); 
}
 
void loop()      
{      
  gw.process(); 
  unsigned long now = millis();
 
  double Irms = emon.calcIrms(1480);  // Calculate Irms only
  float realIrms  = emon.Irms*220;        //extract Real Power into variable
 
 if (realIrms != lastIrms) {
      gw.send(IrmsMsg.set(realIrms, 1)); //send to gateway
 
  lastIrms=realIrms;
  }
 
   dtostrf(realIrms,5,2,tbuf);
    sprintf(sbuf, "  %s kWt", tbuf);
    myGLCD.print(sbuf, 20, 0);   
    myGLCD.print("Powr:", 0, 0);  
 
    dtostrf(Irms,5,2,tbuf);
    sprintf(sbuf, "  %s Amp", tbuf);
    myGLCD.print(sbuf, 20, 10);   
    myGLCD.print("Irms:", 0, 10);  
 
    myGLCD.update(); 
 
      Serial.print("Power: ");
      Serial.println(realIrms);
 
  gw.sleep(SEND_FREQUENCY);
  }```


Then I transformed it to:

/*
This example code is in the public domain.
*/

#include <nRF24L01.h>
#include <RF24.h>
#include <RF24_config.h>
#include <SPI.h>
#include <MySensors.h> // Include MySensors.org Library V1.5
#include "EmonLib.h" // Include Emon Library
#include <LCD5110_Graph_SPI.h> // Include NOKIA5110 Library

#define CHILD_ID_POWER 0
#define MY_RADIO_NRF24

EnergyMonitor emon;

LCD5110 myGLCD(5,6,3);
extern unsigned char SmallFont[];

MyTransportNRF24 transport(7, 8); //for EMv1

unsigned long lastSend;
unsigned long SEND_FREQUENCY = 20000; // Minimum time between send (in milliseconds). We don't wnat to spam the gateway.

float Irms;
float lastIrms = -99;

char tbuf[8];
char sbuf[12];

MyMessage IrmsMsg(CHILD_ID_POWER, V_KWH);

void setup()
{
myGLCD.InitLCD();
myGLCD.setFont(SmallFont);
myGLCD.update();

// The third argument enables repeater mode.
begin(NULL, AUTO, true),
sendSketchInfo("Energy Monitor v1", "1.0");

// emon.current(0, 111.1); // Current: input pin, calibration.
emon.current(0, 66.5);

// Register all sensors to gw (they will be created as child devices)

present(CHILD_ID_POWER, S_POWER);
}

void loop()
{

unsigned long now = millis();

double Irms = emon.calcIrms(1480); // Calculate Irms only
float realIrms = emon.Irms*220; //extract Real Power into variable

if (realIrms != lastIrms) {
send(IrmsMsg.set(realIrms, 1)); //send to gateway

lastIrms=realIrms;
}

dtostrf(realIrms,5,2,tbuf);
sprintf(sbuf, " %s kWt", tbuf);
myGLCD.print(sbuf, 20, 0);
myGLCD.print("Powr:", 0, 0);

dtostrf(Irms,5,2,tbuf);
sprintf(sbuf, "  %s Amp", tbuf);
myGLCD.print(sbuf, 20, 10);   
myGLCD.print("Irms:", 0, 10);  

myGLCD.update(); 

  Serial.print("Power: ");
  Serial.println(realIrms);

sleep(SEND_FREQUENCY);
} ```

But still get the same error which is:

MySensors.h:287:4: error: #error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.
#error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.
^
exit status 1
Error compiling for board Arduino/Genuino Mega or Mega 2560.

I think the sketch was written some time ago, using MySensors 1.5, not sure how to change it to the updated version.

Appreciate any help

Regards

Christian