SEN0192

MicroWaveSensorSKU:SEN0192
Microwave Sensor
Contents
1 Introduction
2 Specification
3 Board Overview
4 Sensor Module Description
4.1 Antenna Description
4.2 Signal Processing
4.3 Signal Detection Range
4.4 Install
4.5 Indicators and Output Status
4.6 Distance Adjustment
5 Comparison with IR Sensor
6 Tutorial
6.1 Requirements
6.2 Connection Diagram
6.3 Sample Code
7 FAQ
Introduction
The microwave sensor uses doppler radar to detect moving objects using microwaves. This differs
from the method used by a regular infrared (IR) sensor as the microwave is sensitive to a variety of
objects that can reflect microwaves, and its sensor readings are not affected by the ambient
temperature.
This type of sensor is widely used in industrial, transportation and civil applications such as
measuring a vehicle's speed, measuring liquid levels, automatic door motion detection, automatic
washing, production line material detection, car reversing sensors, etc.
The microwave detection method has the following advantages compared with other detection
methods:
1. Able to detect objects without physical contact
2. Readings not affected by temperature, humidity, noise, air, dust or light - suitable for harsh
environments
3. Strong resistance to radio frequency interference
4. Low output, not harmful to the human body
5. Microwaves have a wide detection range and velocity equal to the speed of light
6. Supports non-life-class object detection
Specification
Working Voltage: 5V + 0.25V
Working Current(CW): 60mA max., 37mA typical
Size: 48.5x63mm
Emission:
Detection Distance: 2-16M continuously adjustable
Emission Frequency: 10.525 GHz
Precision Frequency Setting: 3MHz
Output Power (Minimum): 13dBm EIRP
Harmonic Emission: < -10dBm
Average Current (5%DC): 2mA typ.
Pulse Width (Min.): 5uSec
Load Cycle (Min.): 1%
Reception:
Sensitivity (10dB S/N ratio) 3Hz to 80Hz bandwidth: -86dBm
3Hz to 80Hz Bandwidth Clutter: 10uV
Antenna Gain: 8dBi
Vertical 3dB Beam Width: 36 degrees
Level 3dB Beam Width: 72 degrees
BoardOverview
Color Function Description
Green Signal Line
Red
Power+VCC
Black
Power-GND
SensorModuleDescription
AntennaDescription
SignalProcessing
The following diagram demonstrates the working principle of the sensor module. It works by
amplifying a tiny signal which is received by the microwave sensor, and then through the comparison
circuit it converts the signal into a square signal with a digital output of 0 or 1 which an Arduino or
other micro controller can easily handle.

SEN0192

Mfr. #:
Manufacturer:
DFRobot
Description:
Multiple Function Sensor Development Tools Gravity Digital Microwave Sensor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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