Questions tagged [pir]

A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.

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201 views

9v security sensor convert to power pack

I dont have a lot of smarts on circuitry design, so this is more of a can i do it, and what should i look at using or is there is a current solution. basically we have some wireless PIR's with our ...
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1answer
100 views

PIR Sensor University Project

I'm working on a project to use PIR sensor to save on electricity bill in a university, almost a fresh graduate in Electronics Eng. Load is Fluorescent tubes 44w each via ballast,there will be ...
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3answers
1k views

Simple USB powered PIR sensor with LED attached to it (no arduino)

I'm new here and I'm re-new in electronic hence why I'm seeking for some help. Last time I touched a breadboard with a transistor was 10 years ago. So, here's my problem and the problem to the ...
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122 views

Which group do the Proximity sensors belong to?

I was actually doing some research about motion/gesture sensors. well there are different types of motion sensors like : Passive Infrared (PIR), Area reflection type, Ultrasonic, and etc. Well, I ...
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1answer
91 views

Triggering a LED and interrupting it quickly (with a PIR sensor). What do I need for this?

I'm an artist working on a interactive installation. I'm a beginner in electronics and I'm feeling a little bit lost here, can you help me? I have a 5v circuit with a PIR sensor activating a LED and ...
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2answers
2k views

0.5 to 4.0 hours Timing Circuit

This is my first electronics project - apologies for the noob question. I wish to control a power relay, trigged via motion / PIR. After the PIR triggers the relay, the relay should stay "on" for a ...
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1answer
80 views

110v Timing Circut? (for motion sensor)

Apologies if this is simple/rule breaking, it is my first electronics post and I am a newbie. I wish to build an simple motion sensor / pir circuit, to control a relay. For controlling hard-wired ...
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2answers
206 views

Different ways to detect seals? [closed]

I would like to build an underwater mammal detector to take videos of seals when they get in and out of their cave (the entrance of their cave is underwater). It will be a waterproof sealed box with ...
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7answers
14k views

PIR sensor always gives HIGH

This is my first time to use PIR (HC-SR501 ) . It's in repeat trigger model. But when I test the output of the PIR , it gives always HIGH . I rotate sensitivity adjustment and time delay adjustment ...
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1answer
869 views

PIR sensor not working

I am new to electronics and microcontrollers. I am using an LPC1768 and a hc sr501 PIR sensor to create a simple motion detector. I have connected the pins of the PIR sensor to the breadboard and the ...
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2answers
249 views

Making a NCS36000 PIR controller output a distinct and clearly identifiable signal that could be used as a virtual button push [closed]

I need to trigger a peripheral on my existing PCB design. I would use a pushbutton, but can't remake the boards. I need to hack/modify a way in. My MCU is An ATMEL XMEGA and I have a PIR detector ...
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2answers
4k views

Faster PIR Sensor speeds?

I am trying to use an array of sensors to trigger a series of stepper motors based on peoples' presence within different areas of a hallway. It is for an interactive kinetic art piece at an elementary ...
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1answer
877 views

How to get immediate state of DYP-ME003DD PIR sensor?

I am trying to detect movement for a project and have a DYP-ME003DD PIR sensor. It has 4 pins, +,-,CDS (I think this is what it says, it's hard to read) & OUT. When I connect it to my arduino and ...
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1answer
9k views

How can I amplify PIR output to 5V

I need help with a project. I want to make a circuit to work as a night-time motion detector circuit that will power several LEDs. I bought: 1 LDR some NPN transistors BC547 and 2N3904 some resistors ...
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1answer
1k views

PIR Detector Controller IC

Honestly, I have a good deal of questions so this may not be for the faint of heart. I will do my best to ask them in a logical order with specific language. I really appreciate the helpful ...
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2answers
2k views

XBee and PIR sensor

I've ordered XBee wireless transceiver and PIR (motion, here is link) sensor. When I enable DIO0 digital input port on XBee with "ATD0 3" command it becomes high. I measure it with volmeter and get ...