Digital Smart Pyroelectric Detector AS312
- The AS312 is a compact and intelligent motion detector that utilizes digital technology. It features a built-in electronic circuit, making it a complete and ready-to-use solution. With just a power source and a power switch, it functions effectively as a motion-activated switch. The AS312 has a built-in delay time of 2 seconds, allowing for reliable motion detection.
Features
- Digital signal Processing （DSP）
- Power adjustable, save more energy.
- Two-way differential high impedance sensor input and temperature
compensation - Built-in filter, screen the interference by other frequency
- Excellent power supply rejection, Insensitive to RF conduction
interference - Schmidt REL output
Applications
- Intelligent appliance
- Alarms
- Motion detector
- Sensor lamp, Sensor switch
- Security system
- Automatic control etc.
Package Includes
- 1 x Digital Smart Pyroelectric Detector AS312
Datasheet
Digital Smart Pyroelectric Detector AS312 Overview
The Digital Smart Pyroelectric Detector AS312 is a compact motion sensor module that detects infrared changes using digital signal processing. Designed for easy integration, it serves as a motion-activated switch in security systems, lighting controls, and smart appliances.
Key Features of Digital Smart Pyroelectric Detector AS312
- Wide supply voltage range of 2.7 – 3.3 V for flexible powering options
- Ultra-low working current (12–20 µA) for energy-efficient operation
- Fixed on-time and lock-time of 2.3 s for reliable motion-triggered output
- Two-way differential high-impedance inputs with temperature compensation
- Built-in DSP filter rejects interference and provides stable detection
- Schmitt relay output stage with IOH/ IOL ±10 mA drive capability
- Genuine product, fast shipping from Zbotic
Applications and Use Cases
- Automated hallway and corridor lighting control
- Battery-powered security alarms and perimeter sensors
- Smart home appliances for motion-triggered standby wake-up
- Energy-saving HVAC control based on room occupancy
- Automatic door or gate activation systems
- Robotics and industrial equipment presence detection
How to Use Digital Smart Pyroelectric Detector AS312
Connect the AS312’s VDD pin to a stable 2.7–3.3 V supply and its GND pin to ground. Wire the digital OUT pin to your MCU’s input or relay driver. Mount the sensor in a coverage area, observing a clear field of view. Once powered, the module’s built-in DSP and filter will trigger the output high for 2.3 s upon detecting motion, then enter a 2.3 s lock time before rearming.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What supply voltage range does the AS312 support?
The AS312 operates on a supply voltage between 2.7 V and 3.3 V, making it compatible with most low-voltage power sources and lithium-based batteries.
What type of output signal does the detector provide?
The module offers a digital Schmitt trigger output that swings high or low, capable of sourcing or sinking up to ±10 mA, suitable for direct MCU inputs or relay drivers.
How long is the motion detection pulse and lock time?
Upon detecting infrared motion, the AS312 output remains active for an on-time of 2.3 s, followed by a non-adjustable lock time of 2.3 s before it can retrigger.
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Read More →Technical Specifications
| Model | AS312 |
|---|---|
| SKU | AI0516 |
| Weight | 0.0021 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Digital Smart Pyroelectric Detector AS312 is a versatile other sensors used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Dhruv Sharma (verified owner) –
Good Digital Smart Pyroelectric Detector AS312. Works as described. Calibration needed some patience but results are good.
Ishaan Saini (verified owner) –
Excellent sensitivity and range on this Digital Smart Pyroelectric Detector AS312. Works better than I expected.
Lalit Garg (verified owner) –
Excellent Digital Smart Pyroelectric Detector AS312! Readings are accurate and consistent. Perfect for my project.
Mahesh Sen (verified owner) –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.
Om Hegde (verified owner) –
Great quality Digital Smart Pyroelectric Detector AS312. Calibrated it easily and the accuracy is impressive.
Hardik Saxena (verified owner) –
Good Digital Smart Pyroelectric Detector AS312. Works as described. Calibration needed some patience but results are good.
Akash Desai –
Nice Digital Smart Pyroelectric Detector AS312. Readings are mostly accurate. Good enough for my hobby project.
Aditi Kohli (verified owner) –
Nice Digital Smart Pyroelectric Detector AS312. Readings are mostly accurate. Good enough for my hobby project.
Ajay Dave (verified owner) –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.
Nikhil Bisht –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.
Mohit Chatterjee (verified owner) –
Nice Digital Smart Pyroelectric Detector AS312. Readings are mostly accurate. Good enough for my hobby project.
Lakshya Solanki (verified owner) –
Great quality Digital Smart Pyroelectric Detector AS312. Calibrated it easily and the accuracy is impressive.
Om Kumar –
Decent Digital Smart Pyroelectric Detector AS312 for the price. Requires proper wiring but works well once set up.
Bhavna Sethi –
This Digital Smart Pyroelectric Detector AS312 works great with Arduino. Easy to wire up and code.
Abhishek Khurana (verified owner) –
Great quality Digital Smart Pyroelectric Detector AS312. Calibrated it easily and the accuracy is impressive.
Vivek Dhillon –
Good Digital Smart Pyroelectric Detector AS312. Works as described. Calibration needed some patience but results are good.
Raghav Menon –
Great Digital Smart Pyroelectric Detector AS312. Using it in my smart agriculture system. Reliable measurements every time.
Daksh Rao –
This Digital Smart Pyroelectric Detector AS312 works great with Arduino. Easy to wire up and code.
Akshat Trivedi –
Perfect Digital Smart Pyroelectric Detector AS312 for my automation project. Integrates seamlessly with my microcontroller.
Sonali Tandon –
Superb Digital Smart Pyroelectric Detector AS312! Using it in my environmental monitoring system. Very reliable data.
Bharat Patel (verified owner) –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.
Ajay Rathore (verified owner) –
This Digital Smart Pyroelectric Detector AS312 is a must-have for sensor projects. Plug and play with Arduino.
Kapil Solanki (verified owner) –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.
Hitesh Banerjee (verified owner) –
Very satisfied with this Digital Smart Pyroelectric Detector AS312. Library support is good and it’s easy to interface.
Rahul Luthra (verified owner) –
Decent Digital Smart Pyroelectric Detector AS312 for the price. Requires proper wiring but works well once set up.
Jayesh Thakur (verified owner) –
Nice Digital Smart Pyroelectric Detector AS312. Readings are mostly accurate. Good enough for my hobby project.
Prashant Mishra (verified owner) –
Okay Digital Smart Pyroelectric Detector AS312. Had to add a capacitor to stabilize readings. Works now.
Kritika Chopra –
Great Digital Smart Pyroelectric Detector AS312. Using it in my smart agriculture system. Reliable measurements every time.
Dhruv Thakur (verified owner) –
Good Digital Smart Pyroelectric Detector AS312. Works as described. Calibration needed some patience but results are good.
Zara Sen (verified owner) –
Nice Digital Smart Pyroelectric Detector AS312. Readings are mostly accurate. Good enough for my hobby project.
Priya Solanki (verified owner) –
Pretty good Digital Smart Pyroelectric Detector AS312. Documentation could be better but the sensor itself is solid.