Scope error in arduino PinChangeInt library

Question

#include<PinChangeInt.h>
#define SensorPin 2
int ledPin = 10;
int BuzzerPin = 12;
volatile byte blip = 0;
void blipcount(){
 blip++;
};
void setup() {
 // put your setup code here, to run once:
 pinMode(SensorPin,INPUT);
 pinMode(ledPin,OUTPUT);
 pinMode(BuzzerPin,OUTPUT);
 PCintPort::attachInterrupt(SensorPin,blipCount,FALLING);
 Serial.begin(9600);
}
void loop() {
 // put your main code here, to run repeatedly:
 if(digitalRead(SensorPin)==HIGH){
 digitalWrite(ledPin,HIGH);
 digitalWrite(BuzzerPin,HIGH);
 Serial.print("blipcoun:\t");
 Serial.println(blip,DEC);
 }
 if(digitalRead(SensorPin)==LOW){
 digitalWrite(ledPin,LOW);
 digitalWrite(BuzzerPin,LOW);
 }
}

I am using arduino uno for a project.I need to record when my sensor gives a high value but i need it to read only falls in pulses.The program is giving error as

Arduino: 1.6.3 (Windows 8.1), Board: "Arduino Uno"
Sense.ino: In function 'void setup()':
Sense.ino:14:38: error: 'blipCount' was not declared in this scope
Error compiling

please tell me what is the problem with the function.

The library link is https://code.google.com/p/arduino-pinchangeint/downloads/list

tested the code on both 1.72 and 2.19

• aaa: void blipcount(){ blip++; }; why the ; at the end of the function?

Answer 1

You have a typo:

PCintPort::attachInterrupt(SensorPin,blipCount,FALLING);

Should be:

PCintPort::attachInterrupt(SensorPin,blipcount,FALLING);
 ^

Note the lower-case "c".