Parallax 32213 Manual

X-Band Motion Detector (#32213)
The X-Band Motion Detector is a common ingredient in security systems and automatic door openers,
and can detect movements in a room, yard, or even on the other side of a wall. It's a Doppler radar
sensor that operates in the X-band frequency at 10.525 GHz, and indicates movements with oscillations
in its high/low output. Sensitivity is manually adjustable with a potentiometer on the back of the device,
offering direct line of sight detection from roughly 8 to slightly over 30 ft (~2.4 to 9+ m).
Features
Operation frequency of 10.525 GHz
Able to detect motion through walls and
windows
More immune to false triggers than passive
infrared motion sensors
Active-high enable pin with internal pull-up
resistor
Trim potentiometer on the back for manually
adjustable sensitivity
4-Pin SIP header for breadboard or through-hole
prototyping
Built-in series resistor for compatibility with the
Propeller microcontroller and other 3.3 V devices
Plated test point hole for monitoring pre-comparator signal
Key Specifications
Power supply requirements: regulated 5 VDC, 8 mA
Communication: High (3.9 V) / low (0 V) signal oscillates with motion
Dimensions: 1.83 x 1.87 x 0.69 in (46.5 x 47.5 x 17.6 mm)
Operating temp range: 32 to 131 °F (0 to 55 °C)
Application Ideas
Security systems
Automatic door openers
Automatic lighting
Nuisance animal deterrence
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Front
(Antenna side)
X-Band Motion Detector (#32213)
Office: (916) 624-8333
Fax: (916) 624-8003
Sales: (888) 512-1024
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Back
(Potentiometer side)
v1.1 11/9/2009 Page 1 of 8