1.Description:

• It is a radar sensor module. This module uses the Doppler effect, which can detect moving objects in real time, and convert microwave induction signals into high and low level signals, or output as PWM signals.

2.Feature:

• The ultra-low power consumption is only 68uA working current,which is very suitable for low-power applications,such as solar sensor lights,alarms and other battery or solar powered products and products that require low power consumption.
• Its sensing distance and delay time can be adjusted by the serial port assistant.
• It has strong anti-interference,and multiple ones do not interfere with each other.
• It has high stability,high sensitivity and strong environmental adaptability.
• It has many advantages such as penetrability,wide sensing angle,no dead angle,etc.It is an ideal replacement product for infrared induction (PIR pyroelectric) and voice control induction.
• It supports light intensity sensing.

3.Parameter:

• Product Name:Radar Sensor Module
• Working Voltage:DC 2.8V-5.5V
• Output Single:3.3V
• Sensing Distance:12 meters
• Transmit Frequency:5800MHz
• Transmit Power:0.2-0.5mW
• Output High Level:3.3V
• Output Low Level:0V
• Working Current:68uA
• Delay Time:3S
• Photosensitive Threshold:10Lux
• Work Temperature:-30℃~85℃
• Work Humidity:5%~95%RH
• Size:18x18x2.5mm

4.Pin Description:

• Vin:positive power supply
• GND:power ground
• OUT:Inductive output
• TX/P2:UART transmission
• RX/P3:UART receive

5.Direct MCU circuit:

• The microwave/radar output signal can be directly connected to the I/O port of the microcontroller (MCU).
• The MCU program reads the state of the module's out pin and judges whether there is induction,so as to achieve intelligent control.

6.High and low level control:

• The microwave/radar module can also drive the output high and low levels to turn on some switching devices to achieve inductive control,such as driving the switching state of transistors,MOS tubes,relays and other devices.
• When the microwave/radar module detects a moving object,the OUT pin of the module outputs a high level,driving the transistor/MOS tube to conduct,so that the back-end load works (such as turning on the light and starting the motor).

7.Application:

• Solar street light
• Gesture recognition switch
• Smart sensor night light
• Automatic sensor door