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🔍 weewooday 10-piece am312 mini human sensor module: ir pyroelectric infrared pir motion detector, 2.7v-12v dc, -20°c to 60°c logo

🔍 Weewooday 10-Piece AM312 Mini Human Sensor Module: IR Pyroelectric Infrared PIR Motion Detector, 2.7V-12V DC, -20°C to 60°C Review

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Revainrating 3.5 out of 5  
Rating 
3.7
📹 Motion Detectors, 🕵️‍♂️ Security & Surveillance

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Description of 🔍 Weewooday 10-Piece AM312 Mini Human Sensor Module: IR Pyroelectric Infrared PIR Motion Detector, 2.7V-12V DC, -20°C to 60°C

High sensitivity: the AM312 human sensor module is a digital intelligent automatic control product that is based on passive body infrared technology, which is highly sensitive and reliable to use, they are widely applied for all kinds of automatic induction electrical equipment. Nice performance: these human sensor modules are small in size, and feature low power consumption and nicely anti-interference, with internal digital signal processing and direct high and low level output. Repeatable trigger mode: after high sensing output, during the delay time, if a human body is active within its sensing range, its output will keep high until the delay after the people leaves, then it will become low. Specific parameters: Working voltage: DC 2.7V - 12V; Static power consumption: <0.1mA; Delay time: 2 seconds, blocking time: 2 seconds; Trigger mode: repeatable; Sensing range: less than or equal to 100 degrees cone angle, 3 - 5 m (depend on the specific lens); Working temperature: -20 degrees Celsius to +60 degrees Celsius. What you will receive: there are 10 pieces of PIR motion sensor detector modules in the package, enough quantity to meet your daily needs.

Reviews

Global ratings 3
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Type of review

Revainrating 5 out of 5

My Go-To PIR for ESP - Housekeeping

Excellent assembly ability. Easy press fit and they hold up well. The plastic bracket also consists of three parts, which simplifies installation when soldering wires. The wires come out pretty easy to solder my own wires. Make it even more compact! You are very purposeful. The 501 sensors I used had a slightly better latitude range, but the distance is comparable to these guys running esp12fs and reporting to the home helper via esphhome. You are excellent. Buy them, you won't regret it.

Pros
  • Very good value for money
Cons
  • Price that breaks the piggy bank

Revainrating 2 out of 5

The high output level is 3.3 volts regardless of the supply voltage.

So these little devices put out 3.3 volts when motion is detected. wait a minute. No, no, not with motion detection! These are not motion sensors! They can spot hot objects like a cup of coffee, or if the ambient temperature isn't the same as the Arizona desert I'm in, I'm sure they'll be good at spotting people. When it's 101 degrees outside they don't work very well. BTW, that's 3.3 volts for a high-state output, and the output current is "You'd better have some kind of FET input amplifier…

Pros
  • Pleasant
Cons
  • Obsolete

Revainrating 4 out of 5

My new favorite motion sensor I think is

. 9 out of 10 works very well. The 10th is different but works. Most of them have a duty cycle of at least about 1 second (measured from 950ms to 1.2s), the number 10 is about 2.5 seconds. Sensitivity appears to be good on all axes. The plane along the board could be a bit more sensitive, but not significantly when tested closely. The lock time is about 2 seconds (except for #10 which is about 5 seconds). During detection the open circuit output rises to around 3V. Note that this output can't…

Pros
  • . High marks for support and durability from testers.
Cons
  • . Not as thick as other options.