Beetle RP2350 Example Code for Arduino-I2C Communication

This article guides you through setting up I2C communication on Arduino using the Beetle RP2350 and GR10-30 Gesture Recognition Sensor, complete with hardware requirements, wiring diagrams, and sample code ensuring effective gesture detection and data display via the Arduino IDE serial monitor.

Hardware Preparation

Software Preparation

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

Wiring Diagram

Mainboard	Pin name	Module	Pin name
Beetle RP2350	GND	Analog Angle Sensor	GND
Beetle RP2350	3V3	Analog Angle Sensor	VCC
Beetle RP2350	4	Analog Angle Sensor	SDA
Beetle RP2350	5	SIM7600G 4G Module	SCL

Sample Code

#include "DFRobot_GR10_30.h"

DFRobot_GR10_30 gr10_30(GR10_30_DEVICE_ADDR, &Wire);

void setup() {
  Wire.begin();
  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

Beetle RP2350 provides 1 set of I2C communication interface: I2C0. The pin distribution is as follows:

Pin Number	I2C Function
4	I2C0/SDA
5	I2C0/SCL