Symaマルチコプターのカメラ＆PIRモーションセンサーで簡易防犯カメラ - Arduino偏

SymaマルチコプターのカメラとPIRモーションセンサーで簡単防犯カメラを作ってみました。

Symaマルチコプターのカメラの制御方法は、前記事を参照してください。

○回路・配線図

 

○プログラム(スケッチ)

※FlexiTimer2をインストールしてください。

	#include <FlexiTimer2.h>
	//the time we give the sensor to calibrate (10-60 secs according to the datasheet)
	int calibrationTime = 30;
	//the time when the sensor outputs a low impulse
	long unsigned int lowIn;
	//the amount of milliseconds the sensor has to be low
	//before we assume all motion has stopped
	long unsigned int pause = 5000;
	boolean lockLow = true;
	boolean takeLowTime;
	int pirPin = 3; //the digital pin connected to the PIR sensor's output
	int cameraPin = 13;
	int swPin = 2;
	bool mode;
	int pulese;
	void shootPules() {
	digitalWrite(cameraPin, LOW);
	FlexiTimer2::stop();
	}
	//SETUP
	void setup(){
	Serial.begin(9600);
	pinMode(swPin, INPUT_PULLUP);
	pinMode(pirPin, INPUT);
	pinMode(cameraPin, OUTPUT);
	digitalWrite(pirPin, LOW);
	// SW ON(HIGH):VIDEO
	// SW OFF(LOW):STILL
	if (digitalRead(swPin) == HIGH) {
	mode = 1;
	pulese = 500;
	pause = 30000; // 30sec
	} else {
	mode = 0;
	pulese = 100;
	pause = 5000; // 5sec
	}
	FlexiTimer2::set(pulese, shootPules);
	//give the sensor some time to calibrate
	Serial.print("calibrating sensor ");
	for(int i = 0; i < calibrationTime; i++){
	Serial.print(".");
	delay(1000);
	}
	Serial.println(" done");
	Serial.println("SENSOR ACTIVE");
	delay(50);
	}
	//LOOP
	void loop(){
	if(digitalRead(pirPin) == HIGH){
	if(lockLow){
	digitalWrite(cameraPin, HIGH);
	FlexiTimer2::start();
	//makes sure we wait for a transition to LOW before any further output is made:
	lockLow = false;
	Serial.println("---");
	Serial.print("motion detected at ");
	Serial.print(millis()/1000);
	Serial.println(" sec");
	delay(50);
	}
	takeLowTime = true;
	}
	if(digitalRead(pirPin) == LOW){
	if(takeLowTime){
	lowIn = millis(); //save the time of the transition from high to LOW
	takeLowTime = false; //make sure this is only done at the start of a LOW phase
	}
	//if the sensor is low for more than the given pause,
	//we assume that no more motion is going to happen
	if(!lockLow && millis() - lowIn > pause){
	//makes sure this block of code is only executed again after
	//a new motion sequence has been detected
	lockLow = true;
	Serial.print("motion ended at "); //output
	Serial.print((millis() - pause)/1000);
	Serial.println(" sec");
	// Stop Recording
	if (mode) {
	digitalWrite(cameraPin, HIGH);
	FlexiTimer2::start();
	}
	delay(50);
	}
	}
	}

view raw pir_camera.ino hosted with ❤ by GitHub

　スライドスイッチで静止画/動画モードを切り替えます(要リセット)。