seeed studio Grove 101020049 User manual

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Grove - Fingerprint Sensor
Version：1.0
Release date：9/20/2015
Wiki: http://www.seeedstudio.com/wiki/Grove_-_Flame_Sensor
Bazaar: http://www.seeedstudio.com/depot/Grove-Flame-Sensor-p-1450.html

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Document Revision History
Revision
Date
Author
Description
1.0
Sep 21, 2015
Victor.He
Create file

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Contents
Document Revision History··································································································· 2
1. Introduction ···················································································································2
2. Feature ···························································································································3
3. Specification···················································································································4
4. Usage······························································································································5
5. Reference ·······················································································································7
6. Resource·························································································································8
7. Support···························································································································9

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Disclaimer
For physical injuries and possessions loss caused by those reasons which are not related to product quality,
such as operating without following manual guide, natural disasters or force majeure, we take no
responsibility for that.
Under the supervision of Seeed Technology Inc., this manual has been compiled and published which
covered the latest product description and specification. The content of this manual is subject to change
without notice.
Copyright
The design of this product (including software) and its accessories is under tutelage of laws. Any action to
violate relevant right of our product will be penalized through law. Please consciously observe relevant local
laws in the use of this product.

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1. Introduction
The Grove - Flame Sensor can be used to detect fire source or other light sources of the
wavelength in the range of 760nm - 1100 nm. It is based on the YG1006 sensor which is a high
speed and high sensitive NPN silicon phototransistor. Due to its black epoxy, the sensor is sensitive
to infrared radiation. In firefighting robot game, the sensor plays a very important role, it can be
used as a robot eyes to find the fire source.

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2. Feature
Grove Interface
High Photo Sensitivity
Fast Response Time
Easy to use
Sensitivity can adjustable

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3. Specification
Item
Min
Typical
Max
Unit
Voltage
4.75
5.0
5.30
VDC
Current
/
20
/
mA
Range of Spectral Bandwidth
760
940
1100
nm
Detection range
0
~
1
m
Response Time
15
μS
Operating Temperature
-25
~
85
℃

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4. Usage
The module is mainly used to detect the infrared light. It outputs digital signal 0 and 1 through a
Comparator output. The output value will be 0 when infrared light is detected. And the sensitivity
is adjustable by the precision potentiometer.
Let's use it to control. When the output value is 0, the led will light up.
1. Connect the module to the D3 of Grove - Base Shield using the 4-pin grove cable.
2. Plug the Grove - Base Shield into Arduino.
3. Connect Arduino to PC by using a USB cable.
4. Copy and paste code below to a new Arduino sketch. Please click here if you do not know how
to upload.
/************************************************************************
******/
#define SENSOR 3 //connect 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()
{

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digitalWrite(LED,LOW);
}
boolean isFlameDetected()
{
if(digitalRead(FLAME_SENSOR))
return false;
else return true;
}
5. The LED will light up when there is infrared light. Please use it to design your products.

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5. Reference
The sensor can detect the light source whose wavelength is in the range of 760nm - 1100 nm. The
below picture shows the spectral sensitivity.

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6. Resource
Grove - Flame Sensor Eagle File
Github repository for Grove_Flame_Sensor Library (new)
LM293D datasheet

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7. Support
If you have questions or other better design ideas, you can go to our forum or wish to discuss.