Example Code for Arduino-Single Target Detection

Hardware Preparation

• DFRduino UNO R3 (or similar) x 1
• 24GHz Microwave Radar Sensor x1
• Connectors

Software Preparation

• Arduino IDE

Wiring Diagram

As the diagram shows, the pin 1 to 6 are placed from top to bottom. Pin 1 to UNO 5V, P2 to GND, pin 4 and 5 to UNO digital pin 4 and 5. Pin 6 is unconnected.

Sample Code

* **************************************************** 
* @brief 24GHz Microwave Radar Sensor

 * @copyright	[DFRobot](https://www.dfrobot.com), 2016
 * @copyright	GNU Lesser General Public License

* @author [Xiaoyu]([email protected])
* @version  V1.0
* @date  2019-03-11
  
* GNU Lesser General Public License.
* All above must be included in any redistribution
* ****************************************************/
#include <SoftwareSerial.h>
char col;// For storing the data read from serial port
unsigned char buffer_RTT[8] = {};
int YCTa = 0, YCTb = 0,YCT1 = 0;
SoftwareSerial mySerial(4, 5); 
void setup() {
        mySerial.begin(57600);    
        Serial.begin(115200);
}

void loop() { 
        // Send data only when received data
        if (mySerial.read() == 0xff) {
                // Read the incoming byte.
           for (int j = 0; j < 8; j++){
                col = mySerial.read();
                buffer_RTT[j] = (char)col;
                delay(2);        
                }
                mySerial.flush();
                if(buffer_RTT[1]==0xff){
                if(buffer_RTT[2]==0xff){
                  YCTa = buffer_RTT[3];      
                  YCTb = buffer_RTT[4];
                  YCT1 = (YCTa << 8) + YCTb;               
                }
                }//Read the obstacle distance of maximum reflection intensity
                    Serial.print("D: ");
                    Serial.println(YCT1);//Output the obstacle distance of maximum reflection intensity          
        }
        }  

Result

Output result: the obstacle distance of maximum reflection intensity.