Need Help reading data from Sensor using I2C

Projects Networking, Protocols, and Devices
1

I am trying to read a sensor using I2C, i am new to this and i only keep getting response as -1.
Th steps described in the datasheet are as per the below images.

my code is as under:

#include <Wire.h>

int X0;

void setup() {
  Wire.begin();
  Serial.begin(9600);
  delay(100);

  Wire.beginTransmission(0xDA); 
  Wire.write(0x08);
    
  Wire.endTransmission();
  Wire.requestFrom(0xDB,1);
  X0 = Wire.read();
  Serial.print("X0= ");
  Serial.print(X0);
  Serial.print("\n");
  
  delay (500);
}

void loop() {

}

I would appreciate inputs on how to get this done.

image
image1089×1295 237 KB

2

Many sensors have libraries that can be included in your sketch to help interface with that particular sensor. I would try to find one for your sensor then run it with the example sketch usually provided by the library.

3

The Wire library expects the 7bit I2C slave address in the beginTransmission() and requestFrom() methods, not the complete first byte of the protocol.

4

@Pylon, thanks.
I updated the code and changed the address to 0x6D (7 bit), it works now.