Beetle RP2350 Example Code for Arduino-UART Communication

The article provides a comprehensive guide on setting up UART communication using Arduino with Beetle RP2350 and GR10-30 gesture sensor, including hardware requirements, software setup, wiring diagram, and sample code for effective communication integration.

Hardware Preparation

Software Preparation

Download and install RTU library
Download and install GR10-30 library file

Wiring Diagram

Connection

Mainboard	Pin name	Module	Pin name
Beetle RP2350	GND	Analog Angle Sensor	GND
Beetle RP2350	3V3	Analog Angle Sensor	VCC
Beetle RP2350	8	Analog Angle Sensor	RX
Beetle RP2350	9	SIM7600G 4G Module	TX

Sample Code

#include "DFRobot_GR10_30.h"

DFRobot_GR10_30 gr10_30(GR10_30_DEVICE_ADDR, &Serial2);

void setup() {
  Serial2.begin(9600);
  Serial.begin(115200);
  
  while(gr10_30.begin() != 0){
    Serial.println(" Sensor initialize failed!!");
    delay(1000);
  }
  
  Serial.println(" Sensor  initialize success!!");
  gr10_30.enGestures(GESTURE_UP|GESTURE_DOWN|GESTURE_LEFT|GESTURE_RIGHT|GESTURE_FORWARD|GESTURE_BACKWARD|GESTURE_CLOCKWISE|GESTURE_COUNTERCLOCKWISE|GESTURE_CLOCKWISE_C|GESTURE_COUNTERCLOCKWISE_C);
}

void loop() {
  if(gr10_30.getDataReady()){
    uint16_t  gestures = gr10_30.getGesturesState();
    if(gestures&GESTURE_UP){
      Serial.println("Up");
    }
    if(gestures&GESTURE_DOWN){
      Serial.println("Down");
    }
    if(gestures&GESTURE_LEFT){
      Serial.println("Left");
    }
    if(gestures&GESTURE_RIGHT){
      Serial.println("Right");
    }
    if(gestures&GESTURE_FORWARD){
      Serial.println("Forward");
    }
    if(gestures&GESTURE_BACKWARD){
      Serial.println("Backward");
    }
    if(gestures&GESTURE_CLOCKWISE){
      Serial.println("Clockwise");
    }
    if(gestures&GESTURE_COUNTERCLOCKWISE){
      Serial.println("Contrarotate");
    }
    if(gestures&GESTURE_CLOCKWISE_C){
      Serial.println("Continuous clockwise");
    }
    if(gestures&GESTURE_COUNTERCLOCKWISE_C){
      Serial.println("Continuous counterclockwise");
    }
  }
  delay(1);
}

Result

Open the Arduino IDE serial monitor, the monitor window correctly printed out the sensor data.

Additional Information

In the Arduino development environment, the Beetle RP2350 defaults to 2 sets of UART communication interfaces: UART1, UART2

The following is the definition of the UART interface in the RP2350:

#define PIN_SERIAL1_TX (0u)
#define PIN_SERIAL1_RX (1u)

#define PIN_SERIAL2_TX (8u)
#define PIN_SERIAL2_RX (9u)