PIR motion sensor Module - Revision history

Admin at 01:32, 4 September 2012

2012-09-04T01:32:23Z

← Older revision		Revision as of 01:32, 4 September 2012
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	When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration.Spinning clockwise increase the the output pulse duration. Spinning anticlockwise decrease the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.		When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration.Spinning clockwise increase the the output pulse duration. Spinning anticlockwise decrease the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.

			The sensor module can't get to work immediately when it's energized. It starts to work about 15 seconds later after energized.

	[[File:PIR sensor3.jpg]]		[[File:PIR sensor3.jpg]]

Admin at 01:10, 4 September 2012

2012-09-04T01:10:46Z

← Older revision		Revision as of 01:10, 4 September 2012
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	==Technical parameters==		==Technical parameters==

	*Operating voltage: DC5V ~~to 20V~~		*Operating voltage: DC5V
	*Static power consumption: 65 microamps		*Static power consumption: 65 microamps
	*level output: high-5V, low-0V		*level output: high-5V, low-0V

Admin: /* Usage */

2012-09-03T10:59:23Z

Usage

← Older revision		Revision as of 10:59, 3 September 2012
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	==Usage==		==Usage==
	When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration.Spinning clockwise ~~increse~~ the the output pulse duration. Spinning anticlockwise ~~decrese~~ the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.		When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration.Spinning clockwise increase the the output pulse duration. Spinning anticlockwise decrease the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.

Admin: /* Usage */

2012-09-03T10:58:45Z

Usage

← Older revision		Revision as of 10:58, 3 September 2012
Line 17:		Line 17:

	==Usage==		==Usage==
	When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.		When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration.Spinning clockwise increse the the output pulse duration. Spinning anticlockwise decrese the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.

Admin: /* Usage */

2012-09-03T10:55:31Z

Usage

← Older revision		Revision as of 10:55, 3 September 2012
Line 17:		Line 17:

	==Usage==		==Usage==
	When motion is sensed, pin S output 5V.		When motion is sensed, pin S output 5V. There is a yelow knob on the back for adjusting the output pulse duration. To make the following test more explicit ,you need to spin the knob anticlockwise to the end to decrease the ouput duration.


	[[File:PIR sensor3.jpg]]		[[File:PIR sensor3.jpg]]

Admin: /* Example code */

2012-05-09T01:30:18Z

Example code

← Older revision		Revision as of 01:30, 9 May 2012
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	}		}
	void loop(){		void loop(){
	int pirVal = digitalRead(pirPin);		int pirVal = digitalRead(pirPin);
	if(pirVal == HIGH)		if(pirVal == HIGH)
	{ //was motion detected		{ //was motion detected
	digitalWrite(13,HIGH);		digitalWrite(13,HIGH);
	delay(50);		delay(50);
	}		}
			else {
			digitalWrite(13,LOW);
			}
	}		}

Admin: /* Example code */

2012-05-09T01:26:47Z

Example code

← Older revision		Revision as of 01:26, 9 May 2012
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	{ //was motion detected		{ //was motion detected
	digitalWrite(13,HIGH);		digitalWrite(13,HIGH);
	delay(~~500);~~		delay(50);
	~~digitalWrite(13,LOW);~~
	~~delay(500~~);
	}		}
	}		}

	=== Adjustment ===		=== Adjustment ===
	[[File:PIR sensor2.jpg]]		[[File:PIR sensor2.jpg]]

Admin: /* Usage */

2012-05-07T09:38:26Z

Usage

← Older revision		Revision as of 09:38, 7 May 2012
Line 18:		Line 18:
	==Usage==		==Usage==
	When motion is sensed, pin S output 5V.		When motion is sensed, pin S output 5V.

	[[File:PIR sensor3.jpg]]		[[File:PIR sensor3.jpg]]
	[[File:PIR sensor wiring.jpg]]		[[File:PIR sensor wiring.jpg]]

Admin: /* Usage */

2012-05-07T09:38:18Z

Usage

← Older revision		Revision as of 09:38, 7 May 2012
Line 17:		Line 17:

	==Usage==		==Usage==
			When motion is sensed, pin S output 5V.
	[[File:PIR sensor3.jpg]]		[[File:PIR sensor3.jpg]]
	[[File:PIR sensor wiring.jpg]]		[[File:PIR sensor wiring.jpg]]

Admin: /* Introduction */

2012-05-07T09:36:40Z

Introduction

← Older revision		Revision as of 09:36, 7 May 2012
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	[[File:PIR2.jpg]]		[[File:PIR2.jpg]]

	PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out.PIR sensor are basically made of a pyroelectric sensor ~~(which you can see above as the round metal can with a rectangular crystal in the center)~~, which can detect levels of infrared radiation. Everything emits some low level radiation, and the hotter something is, the more radiation is emitted. The sensor in a motion detector is actually split in two halves. The reason for that is that we are looking to detect motion (change) not average IR levels. The two halves are wired up so that they cancel each other out. If one half sees more or less IR radiation than the other, the output will swing high or low.		PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small,inexpensive, low-power, easy to use and don't wear out.PIR sensor are basically made of a pyroelectric sensor ,which can detect levels of infrared radiation. Everything emits some low level radiation, and the hotter something is, the more radiation is emitted. The sensor in a motion detector is actually split in two halves. The reason for that is that we are looking to detect motion (change) not average IR levels. The two halves are wired up so that they cancel each other out. If one half sees more or less IR radiation than the other, the output will swing high or low.

	==Technical parameters==		==Technical parameters==