A new way of detecting human body and moving object, not PIR, not ultrasound and it is definately not expensive and complex image processing with camera, it is using Radar microwave. And it is quite low cost, you should try it!
Using Doppler radar technology, this is a microwave sensor module specifically for detecting moving objects and human body. The module has many advantages such as high sensitivity, long sensing distance, wide sensing angle, high reliability, wide range of operating voltage. Widely used in human body sensing lighting system, anti-theft alarm system.
Warranty Period: 12 months
Features
Working voltage: 4-28VDC
Operating current: less than 3 mA
Output voltage: 3.3V (from 3V3 pin), Note: Not input power.
Output Current: 100mA maximum
Detecting range: less than 120 degrees taper angle within 7 meters
Trigger mode: repeat trigger
Delay time: 2 seconds (the default value), by soldering capacitor in different capacities on C-TM pads to adjust it
Active Level: high (when it detects a moving object)
Interface:
3V3 (3.3V power supply output), NOT input voltage
GND (power ground)
OUT (output signal)
VIN (power input)
CDS (detection can be turned off during the day by soldering an external photoresistor to ground).
Only need to use GND / OUT / VIN in general applications.
International
Singapore
Malaysia
Thailand
Vietnam
