Grove Flame Sensor directly on Arduino Mega w. analog values

Products & Technology Grove
#1

Hello,

I just bought this Seeed Grove Flame Sensor:
seeedstudio.com/wiki/Grove_-_Flame_Sensor

Can I connect it directly to my Arduino Mega 2560, without using a Seeed Grove Base Shield?
And can I get analog feedback values from this sensor?
I just found a sample code, where I get a boolean feedback, if there is a flame detected or not.
I’d like to have a specific analog feedback value, where I get get information about how strong the value is.

This is the sample code:

#define FLAME_SENSOR 3 //connect FLAME_SENSOR to digital pin3
#define LED 2//connect Grove - LED to pin2

void setup() 
{                
	pinsInit();
}
void loop() 
{
  if(isFlameDetected())
  	turnOnLED();
  else turnOffLED();
}
/********************************/
void pinsInit()
{
	pinMode(FLAME_SENSOR, INPUT);
	pinMode(LED,OUTPUT);
	digitalWrite(LED,LOW);
}
void turnOnLED()
{
	digitalWrite(LED,HIGH);
}
void turnOffLED()
{
	digitalWrite(LED,LOW);
}
boolean isFlameDetected()
{
	if(digitalRead(FLAME_SENSOR))
		return false;
	else return true;
}

Best regards :wink:

#2

Hello,

Please make connections from grove flame sensor to Arduino mega directly as shown in the attachment.
This is an digital sensor it does not provide analog values.

Thanks and Regards
FlameSensor.jpg

#3

Is it possible to short-circuit the comparator, to get the desired analoge values?
If so, which pins do I have to edit?