Difference between revisions of "Arduino Infrared proximity switch module"

Latest revision as of 09:52, 8 May 2012

overview

Arduino infared proximity switch module is a reflection-type photoelectric sensor which integrates transmitting and receiving infared beams function. Infrared proximity switches work by sending out beams of invisible infrared light. A photodetector on the proximity switch detects any reflections of this light. These reflections allow infrared proximity switches to determine whether there is an object nearby.

technical parameters

• Voltage :DC 5V
• Current  :100mA
• Type :DC 3 Wire NPN-NO (Normal Open)
• Sensory Distance: 3-80 cm adjustable
• Sensory distance regulator and output indicator light on product back
• Control signal level:
• High：2.3V≤Vin≤5V
• Low：-0.3V≤Vin≤1.5V

Usage

When sensor detect object, output is 0V.

Example code

int ledPin = 13; // choose pin for the LED
int inputPin = 2; // choose input pin (for Infrared sensor)
int val = 0; // variable for reading the pin status
void setup() 
{
pinMode(ledPin, OUTPUT); // declare LED as output
pinMode(inputPin, INPUT); // declare Infrared sensor as input
}
void loop(){
val = digitalRead(inputPin); // read input value
if (val == HIGH) { // check if the input is HIGH
digitalWrite(ledPin, LOW); // turn LED OFF
} else {
digitalWrite(ledPin, HIGH); // turn LED ON
}
}

How to buy it

Click here to buyInfrared proximity switch module