Senzor distanta IR SHARP GP2Y0A21YK0F 10 - 80 cm Arduino

Wiring Example

Click to download the datasheet

Arduino Sharp IR Sensor GP2Y0A21YK0F Measuring Detecting Distance 10 to 80cm
Descriptions:
Arduino Sharp IR Sensor - GP2Y0A21YK0F is the updated version of Arduino Sharp IR Sensor - GP2D12
And compare with GP2D12, GP2Y0A21YK0F have more stable function and performance,lower power consumption.

Specifications :
Measuring Detecting distance is 10 to 80 cm
The maximum allowable Angle : > 40 °
The power supply voltage : 4.5 to 5.5 V
The average power consumption : 35 mA
Peak power consumption : about 200 mA
The frequency of updates/cycle : 25 Hz/40 ms
Analog output noise : < 200 mV
Less influence on the color of reflective objects, reflectivity
Line-up of distance output/distance judgement type :
Distance output type (analog voltage) : GP2Y0A21YK
Distance judgement type : GP2Y0D21YK
Judgement distance is  24cm
Adjustable within the range of 10 to 80cm [Optionally available])
External control circuit is unnecessary
Low cost

Arduino take six channel 10 ADC with itself, so we can directly connect the GP2Y0A21YK0F sensor with Arduino analog interface, and read the feedback value of this sensor.
According to the official manual, it is known that the output of the GP2Y0A21YK0F is 0.4 V ~ 2.4 V analog signals, corresponding 10 ~ 80 cmkjtance, output  is inversely proportional to distance, and nonlinear .
Outline Dimensions :

Analog Output Voltage vs. Distance to Reflective Object

Test Code : ( Just for referring )

int i;
int val;
int redpin=0;
void setup()
{
  pinMode(redpin,OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  i=analogRead(redpin);
  val=(6762/(i-9))-4;
  Serial.println(val);
}

 
Now you can watch the distance value in the window of Arduino 0021

package include as below picture

Package include
1 x Sharp GP2Y0A02YK0F Distance Sensor with cable free