Still learning how to use classes, was trying to run my own because I have 26 capacitive sensors that I need to get a quick average from (running average library seems to be too slow for me, need quick response) so this just levels out the samples. I need it to eventually take 26 averaging samples from each sensor so class seemed like best idea.
It works outside of the class but when I moved it over to class it seems to be getting weird readings. any idea what I am doing wrong?
class file:
#include "Arduino.h"
class QuickAverage {
public:
QuickAverage();
int update(int sample);
void sampleAmount(int changeSampleTo);
private:
int _sampleAmount,
_tempAverage,
_capacitiveAverage;
long _runningAverage[];
};
QuickAverage::QuickAverage() {
_sampleAmount = 5;
_tempAverage = 0;
_capacitiveAverage = 0;
long _runningAverage[_sampleAmount];
};
void QuickAverage::sampleAmount(int changeSampleTo){
_sampleAmount = changeSampleTo;
};
int QuickAverage::update(int sample) {
for(int i = 0; i < _sampleAmount; i++){
_runningAverage[i] = sample;
}
// add all the samples up
for(int i = 0; i < _sampleAmount; i++){
_tempAverage = _runningAverage[i] + _tempAverage;
}
// divide by number of samples to get average
_capacitiveAverage = _tempAverage/_sampleAmount;
return _capacitiveAverage;
};
#include <CapacitiveSensor.h> // <> for libraries
#include "QuickAverage.h" // "" for files within same folder as sketch...?
QuickAverage a; // average class
const byte numberOfSensors = 1;
const byte sensorPin[] = { 22 }; //will eventually have 26 input pins
const byte ledPin[] = { 8 }; // also eventually 26
const byte capSenseSend = 2;
CapacitiveSensor cs_a = CapacitiveSensor(capSenseSend,22);
void setup(){
// setup LEDs
for(int i = 0; i < numberOfSensors; i++){
pinMode(ledPin[i],OUTPUT);
digitalWrite(ledPin[i], LOW);
}
cs_a.set_CS_AutocaL_Millis(0xFFFFFFFF);
delay(100);
Serial.begin(19200);
delay(100);
a.sampleAmount(5);
}
int allValues[numberOfSensors];
void loop(){
int aValue = a.update(cs_a.capacitiveSensor(50));
Serial.print(" A : "); Serial.println(aValue);
int allValues[] = { aValue };
checkIfisOn(allValues);
delay(100);
}
int lastReading;
int currentReading;
// here is where I take the reading
void checkIfisOn(int curentSensorValue[]){
boolean firstTime = true;
int firstRelease = 0;
const int threshold = 55;
for(int i = 0; i < numberOfSensors; i++){
int differenceReading = curentSensorValue[i]-lastReading;
if(differenceReading > threshold && firstTime == true){
sendSerialData(i);
fadeLedIn(ledPin[i]);
if((currentReading-lastReading) < threshold){
digitalWrite(ledPin[i], LOW);
fadeLedOut(ledPin[i]);}
lastReading = currentReading;
firstTime = false;
}
}
}
void fadeLedIn(int pinNumber){
for(int j = 0; j <= 255; j+=10){
analogWrite(pinNumber,j);
delay(10);
}
}
void fadeLedOut(int pinNumber){
for(int j = 255; j >= 0; j-=10){
analogWrite(pinNumber,j);
delay(10);
}
digitalWrite(pinNumber, LOW);
}
void sendSerialData(int buttonTouched){
delay(10);
Serial.print("Data,");
delay(10);
Serial.print(buttonTouched);
delay(10);
Serial.print(",");
Serial.print("sensors : ");
Serial.print(allValues[0]);
delay(10);
Serial.print("\n");
delay(10);
}
