HC-SR312 Micro-PIR human body sensing module เซ็นเซอร์จับความเคลื่อนไหว

technical parameters
1. Working voltage: DC 2.7-12V;
2. Static power consumption:
3. Delay time: 2 seconds;
4. Blocking time: 2 seconds;
5. Trigger mode: repeatable;
6. Sensing range: 100 degree cone angle, 3-5 meters; (depending on the specific lens)
7. Working temperature: -20 - +60 C
8.PCB dimensions: 10mm*8mm
9. Module lens: small lens
code:
/* Arduino with PIR motion sensor For complete project details, visit: Arduinoshop99 */ int led = 13; // the pin that the LED is atteched to int sensor = 2; // the pin that the sensor is atteched to int state = LOW; // by default, no motion detected int val = 0; // variable to store the sensor status (value) void setup() { pinMode(led, OUTPUT); // initalize LED as an output pinMode(sensor, INPUT); // initialize sensor as an input Serial.begin(9600); // initialize serial } void loop(){ val = digitalRead(sensor); // read sensor value if (val == HIGH) { // check if the sensor is HIGH digitalWrite(led, HIGH); // turn LED ON delay(100); // delay 100 milliseconds if (state == LOW) { Serial.println("Motion detected!"); state = HIGH; // update variable state to HIGH } } else { digitalWrite(led, LOW); // turn LED OFF delay(200); // delay 200 milliseconds if (state == HIGH){ Serial.println("Motion stopped!"); state = LOW; // update variable state to LOW }}}