Use Sidecar I2C port to communicate with Arduino?

[evanperryg]

My team is working on a project that involves the digital sidecar sending information over I2C to an Arduino Uno (R2, if it matters). Is this possible, and how can it be done? I know nothing of LabView (which is what my team uses to program the robot) but I know quite a bit of arduino C.

Would this code work? All I need to do is have the Arduino receive one byte of information at a time. I want the Arduino configured as master and the sidecar configured as slave.

#include <Wire.h>//I2C library for Arduino

int d = 999;     //arbitrary int used for state change stuff

void setup() {
  Wire.begin();                  // join i2c bus (address optional for master)
  delay(1000);
}

void loop() {
  Wire.requestFrom(1, 1); //Request data from slave device (the sidecar)
    while(Wire.available()) {
      
    int dat = Wire.read();
    
    if (dat == 0) {
           if (d != 0) {
             //runs once every time state changes to 0
           d = 0;
           }
             //runs repeatedly while state is 0
     }
     
     if (dat == 1) {
           if (d != 1) {
           //runs once every time state changes to 1
           d = 1;
           }
     //runs repeatedly while state is 1
     }
     
     if (dat == 2) {
           if (d != 2) {
           //runs once every time state changes to 2
           d = 2;
           }
     //runs repeatedly while state is 2
     }
     
     if (dat == 3) {
           if (d != 3) {
           //runs once every time state changes to 2
           d = 3;
           }
     //runs repeatedly while state is 2
     }
   }
}