PIR Sensor FeatherWing

Easily connect the Adafruit PIR (motion) sensor to your Adafruit Feather or Particle Argon/Boron/Xenon with this custom designed FeatherWing.   The PIR Sensor FeatherWing is specifically designed to accept the Adafruit PIR (motion) sensor.   It includes the 10 k pullup, and you may optionally wire the LED on the board to a digital output.   The signal wire from the PIR sensor needs to be soldered to your digital input of choice.   A small 4 x 24 0.1" pitch prototype area is added too.  

This FeatherWing will work with the SparkFun OpenPIR or Adafruit PN 189 PIR or Parallax SKU 555-28027 PIR motion sensor.  

 

 

PIR Sensor FeatherWing PCB

 

/*

  SE-10 PIR motion sensor


  The signal pin goes high when motion is detected, low when not detected.  
  Use a 10k pullup resistor between the signal and power.
  
  The LED lights when motion is detected, turns off when motion stops.

*/

////////////////////////////////////////////////////////////////////////
//  SE-10 PIR motion sensor
byte pinPIRsensor = 5;  // Signal from PIR sensor
byte pirState = LOW;   
// pinMotionLED is optional digital output for LED indication of 
// PIR activity detected.
byte pinMotionLED = A5; //19
////////////////////////////////////////////////////////////////////////


void setup() {
  pinMode(pinPIRsensor, INPUT);
  delay(1);
  
  pinMode(pinMotionLED, OUTPUT);
  delay(1);
  digitalWrite(pinMotionLED, LOW);
  delay(1);

  // Blink pinMotionLED to verify it is working..
  for (int i=1; i<10; i++) {
    digitalWrite(pinMotionLED, HIGH);
    delay(25);
    digitalWrite(pinMotionLED, LOW);
    delay(25);
  }
  
} // setup()

 
void loop(){
  
  if (digitalRead(pinPIRsensor) == HIGH) {
    if (pirState == LOW) {
      // motion detected
      digitalWrite(pinMotionLED, HIGH);
      pirState = HIGH;
    }
  } else {
    if (pirState == HIGH) {
      // motion ended
      digitalWrite(pinMotionLED, LOW);
      pirState = LOW;
    }
  }
  
  
} // loop()

 

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Projects

FeatherWing