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  Top » Catalog » Sensor » Proximity Distance Sensor » SD719_DD3

Dopplar Radar Motion Detector

 [SD719_DD3]
 $25.00 

Stock Available: Yes

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Description

Dopplar Radar Motion Detector

SD719 is a type of Doppler radar that can be used to detect motion. The RF frequency is 10.525GHz, and it’s powered by 6-50V DC.

SD719 motion detector uses MCU to analyze the signal, and is of high reliability. There are 16 levels of sensitivity adjustment on the board. The sensitivity distance is 0.3-10 meters. There are 4 triggering options. The signal output duration is:2 seconds,3 seconds,10 seconds and 20 seconds. Used together with photo resistor, it can disable trigger during day time. The main applications are auto-door control, industry automation control; out-door security system, ATM auto-video-recording system, field security alert etc.

 

SD719 motion detector is non-contact detector. It has robust to RF interference, and not affected by temperature, humidity, light, airflow or dust. It can be installed in non-metallic enclosure with certain thickness such as plastic, glass, wooden and etc. It is easy to be installed in product or equipment controller. 

 


A. 16 levels of sensitivity adjustment: There are 4 solder pads marked 0, 1, 2, and 3 on the board.

  1.  Shorten the 4 solder pads in a way described as below to adjust the level of sensitivity to one of the 16 levels of sensitive distance from 0.3 to 10m.
  2.  The detected distance will be the shortest (within 0.5 meters) when 4 solder pads disconnected.
  3. If we represent the short as 1 and open as 0. When all are shortened, it has highest sensitivity. 
    • The adjustment options are as following:               
      • 1:0000  2:0001  3:0010  4:0011 5:0100 6: 0101 7:0110 8:0111
        8:1000  9:1001  a:1010  b:1011 c:1100 d:1101 e:1110 f:1111
Description of Board Options:

 

 

B . 4 trigger mode adjustment: there are 2 solder pads on the board marked 4 and 5.    

  1. 00  non-repeat trigger mode:
    Detect moving object. Output high level signal for 3 seconds and stop. Delay 2 seconds and re-detect. If moving object is detected, it will output high level signal for 2 seconds again.  Repeat the cycle until no moving object is detected, and stop outputting high level signal.
  2. 01 repeatable trigger mode, delay time is 2 seconds:
    Detect moving object and output high level signal for 2 seconds. During these 2 seconds, module keeps detecting at the frequency 30 times /second. If detect moving object again, continue delay 2 seconds until no moving object is detected, the high level signal will stop after 2 seconds.
  3. 10 repeatable trigger mode, delay time is 10 seconds:
    Detect moving object and output 10 seconds high level signal. During these 10 seconds, module keeps detecting at the frequency 30 times / second. If detect moving object again, continue delay 10 seconds until no moving objects are detected, the high level signal will stop after 10 seconds delay.
  4. 10 repeatable trigger mode, delay time is 20 seconds:
    Detect moving objector and output 20 seconds high level signal. During these 20 seconds, module keeps detecting at the frequency 30 times / second. If detect moving object again, continue delay 20 seconds until no moving objects are detected, the high level signal will stop after 20 seconds delay.

CDS photo resistor:
1:With photo resistor can disable trigger in day time or bright light.
2:One time trigger is valid:
With photo resistor, the module can only trigger when detect moving objector in night or weak light.
 
Note:
After choose the sensitivity and trigger mode, please power cycle the module.

Specifications:

  • Central frequency:10.525 GHz
  • Power:DC6V-20V
  • Quiescent current:6mA
  • High / low output level:5V/0V
  • 3 dB antenna pattern – direction 80 degree
  • 3 dB antenna pattern –pitch 40 degree
  •  Sense distance:0.3-10m, 16 level adjustment
  • Trigger:4 options
  • Temperature:-30-70 degree  C
  • Dimension:45*37*18mm

More Info

UPC:  0608819141930

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Extra Info

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Extra Info
This product was added to our catalog on Tuesday 24 May, 2011.
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