Seeed_Arduino_Grove_DopplerRadar

This library DopplerRadar.This DopplerRadar can get the speed of the target and the state of the target's movement.

Hardware requirements

• Arduino Zero
• Grove Shield and a cable
• Grove DopplerRadar(BGT24LTR11)

connection of the hardware

Connect DopplerRadar to the serial port of the board.In this example, we use hardware serial as the serial port; If you have other software Serial ports on you board, you can also connect to it.But software serial port may cause data loss.

Usage

• Git clone this resp to your Arduino IDE'S libraries directory.

• Run the demo "BGT24LTR11_DETECTION_TARGET" on examples directory.

• Start a project.

• You can choose to use the hardware or software serial port.

      #define COMSerial Serial
      #define ShowSerial SerialUSB
      GBT24LTR11<HardwareSerial> GBT;

• Set the communication baud rate of the DopplerRadar module (115200).

• Then initialize GBT in the setup function.

• Set the working mode.

  void setup()
  {
    // put your setup code here, to run once:
    ShowSerial.begin(9600);
    COMSerial.begin(115200);
    GBT.init(COMSerial);
    while (!ShowSerial)
      ;
    while (!COMSerial)
      ;
    /*
     * MODE 0 -->detection target mode
     * MODE 1 -->I/Q ADC mode
     */
    while (!GBT.setMode(0))
      ;
  }
  

• Gets the speed value and target state.

void loop()
{
	 // put your main code here, to run repeatedly:
	 uint16_t state=0;
	 ShowSerial.print("target speed:");
	 ShowSerial.println(GBT.getSpeed());
	 state = GBT.getTargetState();
	 //2 --> target approach
	 //1 --> target leave
	 //0 --> Not Found target
	 if (state == 2)
	 {
	   ShowSerial.println("target approach");
	 }
	 else if (state == 1)
	 {
	   ShowSerial.println("target leave");
	 }
	 delay(200);
}
	

Methods

• uint16_t getSpeed();

• uint16_t getTargetState();

• uint8_t getIQADC(uint16_t I_d[],uint16_t Q_d[],uint16_t *len);

• uint8_t setSpeedScope(uint16_t maxspeed,uint16_t minspeed);

• uint8_t getSpeedScope(uint16_t *maxspeed,uint16_t *minspeed);

• uint8_t setMode(uint16_t mode);

  • mode 0 :detect the target mode.
  • mode 1 :Gets the I/Q information ADC value mode.

• uint8_t getMode();

• uint8_t setThreshold(uint16_t whreshold);

• uint16_t getThreshold();

License

See LICENSE.