Gravity Digital Microwave Sensor Radar / Speed Sensor

This microwave sensor from DFRobot detects moving objects using the Doppler principle. It outputs a digital signal, and the range of 2 m to 16 m can be set with the potentiometer. Typical uses are motion detectors, automatic doors and detecting vehicles.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Detection without contact
• Readings independent of temperature, humidity, noise, dust and light
• Range 2 m to 16 m adjustable with the potentiometer
• LED PWR for the supply, LED for detection
• Gravity digital 3-pin connector
• On detection the output goes LOW and the LED lights up, after about 0.5 s it returns to HIGH
• Microwaves penetrate non-metallic walls: choose the mounting location so that no movements outside the target area are detected

Application Examples:

• Motion detectors
• Automatic doors
• Detecting vehicles and measuring speed

Documentation:

• Wiki DFRobot
• Schematic (PDF)

Technical Data:

• Operating voltage: 5 V ± 0.25 V
• Operating current (CW): 60 mA max., 37 mA typical
• Interface: Gravity digital 3-pin
• Detection range: 2 m to 16 m, adjustable
• Frequency: 10.525 GHz
• Pulse width: min. 5 µs
• Duty cycle: min. 1 %
• Output power: min. 13 dBm EIRP
• Beam width vertical: 36°
• Beam width horizontal: 72°
• Dimensions: 48.5 × 63 × 15 mm
• Weight: 28 g

Scope of Delivery:

• 1× Gravity Digital Microwave Sensor
• 1× Gravity digital connection cable 30 cm