The code for Light Sensor LED Brightness Control System

The code for Light Sensor LED Brightness Control System with ATMEGA3
http://www.instructables.com/id/Light-Sensor-LED-Brightness-Control-System-for-Ard/
1.ICStation UNO R3 with USB compatible with Arduino
http://www.icstation.com/product_info.php?products_id=3516
2.Bread board
http://www.icstation.com/product_info.php?products_id=1450
3.Highlight LED light emitting diode
http://www.icstation.com/product_info.php?products_id=3226
4.Analog light sensor
5.Hard jumper wire
6.4 PCS jumper wire
7. 5 Voltage DC power supply
8.3 PCS of pins
9.3P DuPont line


Specific source program as follows:
int _ABVAR_1_Bright;

void setup()

{

_ABVAR_1_Bright = 0;

　　Serial.begin(9600);

}

void loop()

{

Serial.print( analogRead(A0) );

　Serial.println("");

　_ABVAR_1_Bright = analogRead(A0) ;

analogWrite(3, map ( _ABVAR_1_Bright , 50 , 900 , 0 , 255 ) );

if (( ( _ABVAR_1_Bright ) < ( 50 ) ))

　{

analogWrite(3, 0);

}

}