Description
What it is
The HB100 Doppler sensor is a radar wave detection device that operates at a frequency of 10.525GHz. This type of sensor uses the Doppler principle to identify movements based on the change in frequency of reflected radio waves from moving objects.
Features
- Operating frequency: 10.525GHz
- Sensitive to movement detection
What it is for
The HB100 Doppler sensor is ideal for projects requiring movement detection, such as home security alarm systems or automotive applications. It can be integrated into Arduino or ESP devices to create automatic monitoring solutions.
Tutorial: How to use HB100 Doppler Radar Detector
The HB100 Doppler sensor is a useful device for detecting movements based on the Doppler principle. Ideal for home security projects, alarm systems, or automotive applications.
What you need
- Arduino Uno
- USB Type B cable
- 5V Power Supply
Steps
- Connect the HB100 detector to digital pin 2 of the Arduino using a jumper wire.
- Ensure the detector’s power supply is set to 5V.
- Open Arduino IDE and upload the provided example sketch.
- Monitor the serial console to check data communication between the detector and the Arduino.
- Adjust detection parameters according to the datasheet specifications.
Example code
void setup() {
Serial.begin(9600);
}
void loop() {
int sensorValue = digitalRead(2);
Serial.println(sensorValue);
}
Mini project
Build a home security system that sends an email notification when motion is detected.
Common mistakes
- Incorrect sensor connection
- Detection parameters not properly set
- Inadequate power supply
Recommended accessories
- Arduino Uno
- ESP8266 Wi-Fi Module
- 3.7V LiPo Battery
- Relay Module
Frequently asked questions
How can I increase the detection sensitivity?
Check the sensitivity settings in the datasheet and adjust the detector according to your needs.
The detector is not responding, what should I do?
Check all connections and the power supply of the sensor. Also verify compatibility with Arduino.






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