Ks0052 keyestudio PIR Motion Sensor

Keyestudio PIR Motion Sensor

Introduction

The Pyroelectric infrared motion sensor can detect infrared signals from a moving person or moving animal, and output switching signals. It can be applied to a variety of occasions to detect the movement of human body. Conventional pyroelectric infrared sensors are much more bigger, with complex circuit and lower reliability. Now we launch this new pyroelectric infrared motion sensor, specially designed for Arduino. This sensor integrates an integrated digital pyroelectric infrared sensor, and the connection pins. It features higher reliability, lower power consumption and simpler peripheral circuit.

Special note：

1. The maximum distance is 3-4 meters during testing.
2. When testing, first open the white lens, you can see the rectangular sensing part. When the long line of the rectangular sensing part is parallel to the ground, the distance is the best.
3. When testing, the sensor needs to be covered with white lens, otherwise it will affect the distance.
4. The distance is best at 25℃, and the detection distance is shortened when it exceeds 30℃.
5. Done powering up and uploading the code, you need to wait 5-10 seconds then start testing, otherwise it is not sensitive.

Features

smaller size and light weight
higher reliability
lower power consumption
simpler peripheral circuit

Parameters

Input Voltage: DC 3.3V~18V
Working Current: 15uA
Working Temperature: -20 ~ 85 ℃
Output Voltage: High 3V, Low 0V
Output Delay Time (High Level): About 2.3 to 3 Seconds
Detection Angle: 100°
Detection Distance: 3-5 meters
Output Indicator LED (If it is HIGH level, it will be ON)
Pin Limit Current: 100mA

Pinout

Wire it Up

Connect the S pin of module to Digital 3 of UNO board, connect the negative pin to GND port, positive pin to 5V port.

Sample Code

Below is an example code, you can upload it to Arduino IDE.

byte sensorPin = 3;
byte indicator = 13;
void setup()
{
  pinMode(sensorPin,INPUT);
  pinMode(indicator,OUTPUT);
  Serial.begin(9600);
}

void loop()
{
  byte state = digitalRead(sensorPin);
  digitalWrite(indicator,state);
  if(state == 1)Serial.println("Somebody is in this area!");
  else if(state == 0)Serial.println("No one!");
  delay(500);
}

Example Result

Done wiring and powered up, upload well the code, if the sensor detects someone moving nearby, D13 indicator on UNO board will light up, and "Somebody is in this area!" is displayed on the serial monitor.
If no movement, D13 indicator on UNO board not lights, and "No one!" is displayed on the serial monitor.