Mini PIR sensor

Beskrivelse

Benforbindelser:

Kredsløbsopstilling:

Program:

/* PIR sensor tester*/

int ledPin = 13; // choose the pin for the LED
int inputPin = 2; // choose the input pin (for PIR sensor)
int pirState = LOW; // we start, assuming no motion detected
int val = 0; // variable for reading the pin status

void setup() {
pinMode(ledPin, OUTPUT); // declare LED as output
pinMode(inputPin, INPUT); // declare sensor as input

Serial.begin(9600);
}

void loop(){
val = digitalRead(inputPin); // read input value
if (val == HIGH) { // check if the input is HIGH
digitalWrite(ledPin, HIGH); // turn LED ON
if (pirState == LOW) {
// we have just turned on
Serial.println(“Motion detected!”);
// We only want to print on the output change, not state
pirState = HIGH;
}
} else {
digitalWrite(ledPin, LOW); // turn LED OFF
if (pirState == HIGH){
// we have just turned of
Serial.println(“Motion ended!”);
// We only want to print on the output change, not state
pirState = LOW;
}
}
}

Specifications:

AM312 body sensors modules: a passive body based on the digital intelligent infrared technology, automatic control products. High sensitivity, high reliability. Widely used in various auto-sensing electrical equipment.

– Immunity enhancement, internal use of digital signal processing, direct high-low output.

– Repeatable trigger: the sensor output high after, the delay period,

if there is human activity in its sensing range, the output will remain high

until the people left after the delay, it becomes low (ie: sensor module detects the

human body every activity will be automatically extended a period delay,

and to the last activity time as the starting point of the delay time).

Technical Parameters:

1. Working voltage: DC 2.7-12V;
2. Static power consumption: <0.1mA;
3. Delay time: 2 seconds;
4. The blocking time: 2 seconds;
5. Trigger: can be repeated;
6. Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens)
7. Working temperature: -20 – + 60 degree
8. PCB Dimensions: 10mm x 8mm
9. Total size: Approx. 12mm x 25 mm
10. Module Lens: Small lens