Hello,
I am new to this forum, If i did something wrong please let me know, I am doing my best to adhere to the rules.
My goal with this code is to monitor 3 separate pumps flows using interrupts. I am trying to use attachInterrupt() and detachInterrupt() to to sample each pin for one second so that the interrupts don’t get mix with each other. I am using an Arduino Mega 2560.
EDIT: I set up an array to directly call the interrupt pins rather than use digitalPinToInterrupt(), it seems to not call anymore errors. If anyone has a more elegant solution it would be much appreciated.
This is the code I modified/wrote:
// reading liquid flow rate using Seeeduino and Water Flow Sensor from Seeedstudio.com
// Code adapted by Charles Gantt from PC Fan RPM code written by Crenn @thebestcasescenario.com
// http:/themakersworkbench.com http://thebestcasescenario.com http://seeedstudio.com
volatile int NbTopsFan; //measuring the rising edges of the signal
int i;
int pump_flow[3] = {1, 2, 3};
int pin[3] = {2, 3, 18}; //The pin location of the sensor
void rpm () //This is the function that the interupt calls
{
NbTopsFan++; //This function measures the rising and falling edge of the hall effect sensors signal
}
// The setup() method runs once, when the sketch starts
void setup() //
{
for(i=0; i<3; i++)
{
pinMode(pin[i], INPUT); //initializes digital pin 2 as an input
}
Serial.begin(9600); //This is the setup function where the serial port is initialised
}
// the loop() method runs over and over again,
// as long as the Arduino has power
void loop()
{
for(i=0; i<3; i++)
{
attachInterrupt(digitalPinToInterrupt(pin[i]), rpm, RISING); //and the interrupt is attached
NbTopsFan = 0; //Set NbTops to 0 ready for calculations
sei(); //Enables interrupts
delay (1000); //Wait 1 second
cli(); //Disable interrupts
detachInterrupt(digitalPinToInterrupt(pin[i]));
pump_flow[i] = (NbTopsFan * 60 / 7.5); //(Pulse frequency x 60) / 5.5Q, = flow rate in L/min
Serial.print ("Pump ");
Serial.print (i, DEC);
Serial.print (": ");
Serial.print (pump_flow[i], DEC); //Prints the number calculated above
Serial.print (" L/min\r\n"); //Prints "L/hour" and returns a new line
}
And this is the code I based it off of:
// reading liquid flow rate using Seeeduino and Water Flow Sensor from Seeedstudio.com
// Code adapted by Charles Gantt from PC Fan RPM code written by Crenn @thebestcasescenario.com
// http:/themakersworkbench.com http://thebestcasescenario.com http://seeedstudio.com
volatile int NbTopsFan; //measuring the rising edges of the signal
int Calc;
int hallsensor = 2; //The pin location of the sensor
void rpm () //This is the function that the interupt calls
{
NbTopsFan++; //This function measures the rising and falling edge of the hall effect sensors signal
}
// The setup() method runs once, when the sketch starts
void setup() //
{
pinMode(hallsensor, INPUT); //initializes digital pin 2 as an input
Serial.begin(9600); //This is the setup function where the serial port is zinitialised,
attachInterrupt(0, rpm, RISING); //and the interrupt is attached
}
// the loop() method runs over and over again,
// as long as the Arduino has power
void loop ()
{
NbTopsFan = 0; //Set NbTops to 0 ready for calculations
sei(); //Enables interrupts
delay (1000); //Wait 1 second
cli(); //Disable interrupts
Calc = (NbTopsFan * 60 / 7.5); //(Pulse frequency x 60) / 7.5Q, = flow rate in L/hour
Serial.print (Calc, DEC); //Prints the number calculated above
Serial.print (" L/hour\r\n"); //Prints "L/hour" and returns a new line
}
And this is my Error message:
Arduino: 1.0.6 (Windows 7), Board: "Arduino Mega 2560 or Mega ADK"
flowmeter.ino: In function 'void loop()':
flowmeter:29: error: 'NOT_AN_INTERRUPT' was not declared in this scope
Any help would be much appreciated, thank you.
.