'readPulsioximeter' was not declared in this scope

Question

I am new to Arduino. I am trying to use Pulsioximeter sensor with e-health Platform (http://www.cooking-hacks.com/documentation/tutorials/ehealth-biometric-sensor-platform-arduino-raspberry-pi-medical) on Arduino Uno. Line number 13 is working fine in the example code given in the library and works just fine. But when I try to upload my custom code (setup function definition is given below), I get an error stating 'readPulsioximeter' not defined in this scope. The error doesn't seem obvious to me. Please guide.

Here is the custom code upto setup() function:

#include < eHealth.h >
#include < PinChangeInt.h >
bool configuration = false;
//bool in_it=true;
byte val; // variable to receive data from the serial port
int ledpin = 13; // LED connected to pin 48 (on-board LED)
int A=1;
void setup() {
 pinMode(ledpin, OUTPUT); 
 Serial.begin(115200);
 eHealth.initPulsioximeter();
 //Attach the interruptions for using the pulsioximeter.
 PCintPort::attachInterrupt(6, readPulsioximeter, RISING);
 delay(500);
}

EDIT1: readPulsioximeter is declared in eHealth.h library which has been included in program. The function has been defined as below in eHealth.cpp file:

 //!******************************************************************************
 //! Name: readPulsioximeter() *
 //! Description: It reads a value from pulsioximeter sensor. *
 //! Param : void *
 //! Returns: void *
 //! Example: readPulsioximeter(); *
 //!******************************************************************************
 void eHealthClass::readPulsioximeter(void)
 {
 uint8_t digito[] = {0,0,0,0,0,0};
 uint8_t A = 0;
 uint8_t B = 0;
 uint8_t C = 0;
 uint8_t D = 0;
 uint8_t E = 0;
 uint8_t F = 0;
 uint8_t G = 0;
 for (int i = 0; i<6 ; i++) { // read all the led's of the module
 A = !digitalRead(13);
 B = !digitalRead(12);
 C = !digitalRead(11);
 D = !digitalRead(10);
 E = !digitalRead(9);
 F = !digitalRead(8);
 G = !digitalRead(7);
 digito[i] = segToNumber(A, B, C ,D ,E, F,G); 
 delayMicroseconds(2800); //2800 microseconds
 }
 SPO2 = 10 * digito[5] + digito[4];
 BPM = 100 * digito[2] + 10 * digito[1] + digito[0];
 }

Answer 1

The problem is that you have no function called "readPulsioximeter" in your code. Either define it, pick a different function, or remove that line of code.

• Solitary: readPulsioximeter is declared in eHealth.h library which has been included in program. Please see <b>EDIT1</b> in the the question.
• Solitary: :) Thanks for your help. I re-defined the function in the program and it worked.

Answer 2

It looks like your missed naming the eHealth object, and that that statement should read:

PCintPort::attachInterrupt(6, eHealth.readPulsioximeter, RISING);

as you did with the initPulsioximeter call. (In otherwords, "which pulsioximeter?").

• Solitary: When I try specifying eHealth.readPulsioximeter, it is shown as unresolved overloaded function type. Problem is that the same line is working in another program but gives error in this program.
• Solitary: :) Thanks for your help. I re-defined the function in the program and it worked.