SHARP IR Ranger Sensor GP2D12 for Arduino: Difference between revisions
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Created page with "==Introduction== File:GP2D12 1.jpg The Sharp GP2D12 is an analog distance sensor that uses infrared to detect an object between 10 cm and 80 cm away. The GP2D12 provides ..." |
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==Introduction== | ==Introduction== | ||
[[File:GP2D12 1.jpg]] | [[File:GP2D12 1.jpg|250px]] | ||
The Sharp GP2D12 is an analog distance sensor that uses infrared to detect an object between 10 cm and 80 cm away. The GP2D12 provides a non-linear voltage output in relation to the distance an object is from the sensor and interfaces easily using any analog to digital converter. | The Sharp GP2D12 is an analog distance sensor that uses infrared to detect an object between 10 cm and 80 cm away. The GP2D12 provides a non-linear voltage output in relation to the distance an object is from the sensor and interfaces easily using any analog to digital converter. | ||
| Line 22: | Line 22: | ||
Here is the guide illustrates how to connect an Arduino to the ADXL335 breakout board. | Here is the guide illustrates how to connect an Arduino to the ADXL335 breakout board. | ||
[[File:GP2D12 wiring.jpg| | [[File:GP2D12 wiring.jpg|400px]] | ||
==Example code== | ==Example code== | ||
Latest revision as of 02:08, 25 May 2012
Introduction
The Sharp GP2D12 is an analog distance sensor that uses infrared to detect an object between 10 cm and 80 cm away. The GP2D12 provides a non-linear voltage output in relation to the distance an object is from the sensor and interfaces easily using any analog to digital converter.
Specification
- Measuring range : 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
Document
Pinout
Usage
Here is the guide illustrates how to connect an Arduino to the ADXL335 breakout board.
Example code
char GP2D12;
char a,b;
void setup()
{
Serial.begin(9600); //
}
void loop()
{
int val;
GP2D12=read_gp2d12_range(0);
a=GP2D12/10;
b=GP2D12%10;
val=a*10+b;
if(val>10&&val<80)
{
Serial.print(a,DEC);//
Serial.print(b,DEC);//
Serial.println("cm");//
}
else Serial.println("over");//
delay(50);
}
float read_gp2d12_range(byte pin)
{
int tmp;
tmp = analogRead(pin);
if (tmp < 3)return -1;
return (6787.0 /((float)tmp - 3.0)) - 4.0;
}
How to buy
Click here to buy SHARP IR Ranger Sensor GP2D12