esp32 C3 with mpu6050

there is no requirement to use the s3 like in the video it will also work with a C3, you only need to specify and connect the right pins for i2C.
so either use the pinmux to define which pins are used for SDA&SCL by the wire library or look up the default i2c pins for your particular board(which appears to be some random clone board so that might be not the simplest to find out.) and connect to these.
also check if the breakout board you are using has the pullop resistors for i2c fitted, if not you nalso need to add them in your config/physically.

mayermakes said:

so either use the pinmux to define which pins are used for SDA&SCL by the wire library

Wire.begin(SDA, SCL);

mayermakes said:

so either use the pinmux to define which pins are used for SDA&SCL by the wire library

Wire.begin(SDA, SCL);

Hi , The SDA and SCL connection had been solved .

I got the virtual mouse working with my smartphone .

I am doing a  project . The Project is based on Finger module that has esp32 C3 and mpu6050 attached to my Index Finger  .In the prototype , I do not need button to click the screen . It will be done using my finger movement along the Z direction .I can  move the mouse cursor  along (X-Y direction )  and scrolling too with my finger module attached to my finger  . 

I will attach my code , Can you tell me if the code is correct or not ? 

Secondly i used  "int x = map(mpu.getAngleX(),-90,90,0,255)" instead of "int x = map(mpu.getAngleX(),-90,90,-10,10)" , Can you tell me which one is good for precise cursor control and without timelag . If timelag shows up , how can i avoid it by either using hardware /Software ?

#include <MPU6050_light.h>
MPU6050 mpu(Wire);
unsigned long timer = 0;
#include <BleMouse.h>
#define MPU_ADDR 0x68 
 
BleMouse bleMouse;


int prevX = 0, prevY = 0, prevZ = 0; // Previous sensor readings for movement detection
// Thresholds for click and scroll detection (adjust as needed)
#define CLICK_THRESHOLD 1000


#include <Wire.h>
int SDA_pin= 6;
int Scl_pin= 7;

//#define AD0 11 
//#define INT 12
void setup() {
  //pinMode(INT, INPUT); //int goes high when activity is detected(wakeup?)
  //pinMode(AD0, OUTPUT);
  //digitalWrite(AD0, LOW);//sets I2C adress
  delay(50);
  Serial.begin(115200);
  Wire.setPins(SDA_pin ,Scl_pin);
    pinMode(SDA_pin,INPUT_PULLUP );
 
   pinMode(Scl_pin,INPUT_PULLUP );
  Wire.begin();

  Serial.println("Starting BLE work!");
  bleMouse.begin();
  byte status = mpu.begin();
  Serial.print(F("MPU6050 status: "));
  Serial.println(status);
  while(status!=0){ } // stop everything if could not connect to MPU6050
  
  Serial.println(F("Calculating offsets, do not move MPU6050"));
  delay(2000);
  // mpu.upsideDownMounting = true; // uncomment this line if the MPU6050 is mounted upside-down
  mpu.calcOffsets(); // gyro and accelero
  Serial.println("Done!\n");
  }
  

void loop() {
  if(bleMouse.isConnected()) {
    Wire.write(0x3B); 
    Wire.write(0x43); 
 
  mpu.update();
  int x = map(mpu.getAngleX(),-90,90,0,255);
  int y = map(mpu.getAngleY(),-90,90,0,255);
  int z =abs(mpu.getAngleZ());
  prevX = x;
  prevY =y;
  
   bleMouse.move(x,y);
    // Click detection based on Z-axis acceleration change
    if (z > CLICK_THRESHOLD && prevZ < CLICK_THRESHOLD) {
     bleMouse.click();
      delay(10); // Debounce (optional)
     
    }
    prevZ = z;
    // Scrolling 
         Serial.println("Scroll up");
         unsigned long startTime;
  startTime = millis();
    while(millis()<startTime+2000) {
      bleMouse.move(0,0,1);
      delay(100);
    }
    delay(500);

    Serial.println("Scroll down");
    startTime = millis();
    while(millis()<startTime+2000) {
      bleMouse.move(0,0,-1);
      delay(100);
    }
    delay(500);

    Serial.println("Scroll left");
    startTime = millis();
    while(millis()<startTime+2000) {
      bleMouse.move(0,0,0,-1);
      delay(100);
    }
    delay(500);

    Serial.println("Scroll right");
    startTime = millis();
    while(millis()<startTime+2000) {
      bleMouse.move(0,0,0,1);
      delay(100);
    }
    delay(500);


  
  
  if((millis()-timer)>10){ // print data every 10ms
  Serial.print("X : ");
  Serial.print(mpu.getAngleX());
  Serial.print(x);
  Serial.print("\tY : ");
  Serial.print(mpu.getAngleY());
  Serial.print(y);
  Serial.print("\tZ : ");
  Serial.println(mpu.getAngleZ());
  Serial.print(z);
  
  timer = millis();  
  }
  }}