Doppler Microwave Motion Detection Sensor Module GH-719 GH719

GH-719 microwave sensor shift module is the use of Doppler (Doppler Radar) microwave detector to move the object of the design principle, the microwave frequency of 10.525GH, directly with DC 6-20V power supply work.
GH-719 microwave sensor displacement signal processing module using single-chip process analysis, high reliability. The circuit board has 16 sensitivity adjustment, sensing distance adjustable, between 0.3 to 10 meters. 4 kinds of trigger mode selection signal Output time: 2 seconds, 3 seconds, 10 seconds, 20 seconds, coupled with daylight suppression trigger photosensitive resistor, mainly used for automatic door control switch, industrial automation and control, indoor and outdoor safety systems, ATM automatic ATM automatic Video control system, on-site security alerts and other places.
GH-719 microwave sensor module is a non-contact displacement detection module, with RFI ability, without temperature, humidity, light, air, dust, can be installed in a certain thickness of plastic, glass, wood and other non-metallic shell inside , Easy to control the above various products or equipment.
The second circuit board adjustment instructions:
?Level 16 Sensitivity Adjustment: Board has four labeled connections 0123.
1: short-circuit the following four connections, the sensitivity can be adjusted 16, so that the sensing distance of 0.3-10 meters adjustable.
2: 4 connection points off, the recent sensing distance of 0.5 meters.

1: 0000.2: 0001.3: 0010.4: 0011.5: 0100.6: 0101.7: 0110.8: 0111
: 8: 1000.9: 1001 3: 1 Short circuit connection point, not shorted to 0, all short circuit, the highest sensitivity. A: 1010. b: 1011. C: 1100. D: 1101. E: 1110. F: 1111.
?B 4 trigger mode adjustments: The circuit board has two connection points, marked as 45 inches
1:00 non-repeatable touch trigger type:
?Detection of moving objects to stop 3 seconds after the output of high signal delay of 2 seconds before the test, the detection of moving objects and output 2 seconds, and then cycle. Until the moving object can not be detected, high signal output stops.
2:01 Touch trigger repeatable, delay time 2 seconds:
?Detection of moving objects, high signal output 2 seconds, 2 seconds, the module 30 times per second frequency, can not detect whether to detect moving objects again, delay 2 seconds to continue until the detection of moving objects,
High signal delay 2 seconds after stopping.
3:10 touch trigger repeatable, delay time of 10 seconds:
?Detection of moving objects, high-level signal output 10 seconds, 10 seconds, the frequency module 30 times per second
Detect whether the object is detected to move again, the delay of 10 seconds to continue until the detection of moving objects,
10 seconds after shutdown high signal delay.
4:10 touch trigger repeatable, delay time 20 seconds:
?Moving objects are detected, 20 seconds high-level signal is output in 20 seconds, the module 30 times per second
Detect the object is detected to move again, the delay of 20 seconds to continue until it can not detect the moving object,
High signal delay of 20 seconds after stopping.
?CDS photoresistor:
1: Connection of photoresistor, can be suppressed during the day or trigger in bright light environment.
2: trigger a valid:
???The photoresistor can then be triggered at night or in low light when a moving object is detected. During the selected trigger mode time, do not change the trigger status and delay time even if the light from darkness is on until the output signal goes low and the photoresistor can only control the action.
?Precautions:
?After selecting the sensitivity and trigger mode, the controller needs to be powered on again to perform the new selection function.
Three main technical parameters:
????Center frequency: 10.525 GHz 2 Working voltage: DC3.7V ± 20V
????3 Quiescent Current: 2mA 4 High / Low Output Level: 3.3V / 0V
????5 3 dB Antenna Pattern - Azimuth 80 ° 6 3 dB Antenna Pattern - Pitch 40 °
????7 sensing distance: 1-12 m 16 adjustable 8 trigger: 4 options
????9 Ambient temperature: -30-70 degrees 10 Dimensions: 45 * 37 * 15mm