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📢 onyehn ir pyroelectric infrared pir motion sensor detector modules dc 2.7 to 12v(pack of 5pcs): enhance your security with reliable motion detection logo

📢 Onyehn IR Pyroelectric Infrared PIR Motion Sensor Detector Modules DC 2.7 to 12V(Pack of 5pcs): Enhance Your Security with Reliable Motion Detection Review

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
📹 Motion Detectors, 🕵️‍♂️ Security & Surveillance

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Description of 📢 Onyehn IR Pyroelectric Infrared PIR Motion Sensor Detector Modules DC 2.7 to 12V(Pack of 5pcs): Enhance Your Security with Reliable Motion Detection

AM312 Human Sensing Module: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment. Low power consumption, small size, easy to install. Internal use of digital signal processing, pit interference strong. Repeatable trigger mode: that is, after the induction output is high, in the delay period, if the body in its induction range of activities, the output will remain high until the delay after the person to become Low level. (Ie, the sensing module automatically detects a delay period after each activity of the human body, and takes the last active time as the starting point for the delay time). Working voltage: DC 2.7-12V;Static power consumption: <0.1mA;Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens) Working temperature: -20 to + 60 °C.

Reviews

Global ratings 3
  • 5
    3
  • 4
    0
  • 3
    0
  • 2
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  • 1
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Type of review

Revainrating 5 out of 5

Good: works at 3.3V Bad: 2 out of 5 does not work

The good news is that they work at 3.3V directly, so perfect for NodeMCU with ESPeasy. The bad news is that they are horribly soldered - even I could do better. 3 out of 5 worked, 2 didn't work. This significantly increases the cost of a single (working) device.

Pros
  • Elegant design
Cons
  • Long delivery time

Revainrating 5 out of 5

Useful. Smart exit.

Right now I'm watching my storage oscilloscope while this thing is plugged in. The output generally appears low and goes high for about 5 seconds when presence is detected. This is very useful as by adding a capacitor you can get either an active low or an active high boost. And that makes it useful for applications where you don't even bother using a microcontroller.

Pros
  • Everything is fine!
Cons
  • Dear

Revainrating 5 out of 5

I love little things like that

Failed to load media. These PIR sensors were very easy to use. They are logically "low" when they don't detect anything, and then go "high" (about +3.3 volts in my tests) when triggered. When idling, it consumes very little voltage. I use them to trigger a pin interrupt on an atmega328p. They have been the most reliable Halloween props I've built this year. I've searched 10m of shielded cable and it could still cause an open. This allows me to place the PIR sensor at a reasonable distance from…

Pros
  • Pretty packaging
Cons
  • Can't remember