Arduino-Rainbowduino I2C Master - PulseIn input replicator

/*I haven't gotten around to properly commenting this yet.  If I don't soon, yell at me.  This code takes pulseIn input values and translates them into single-byte characters for easy transfer over I2C.*/


#include <Wire.h>
int rx1 = 0;  //throttle
int rx2 = 0;  //aileron
int rx3 = 0;  //elevation
int rx4 = 0;  //rudder
int rx5 = 0;  //AUX
int rx6 = 0;  //Trainer
char bx1 = 0;
char bx2 = 0;
char bx3 = 0;
char bx4 = 0;
char bx5 = 0;
char bx6 = 0;



void setup()
{
  Serial.begin(115200);      //Open the serial port at 115200bps
  Wire.begin();              //Join I2C bus (no address for master)
}


void loop()
{
  rx1 = pulseIn(2,HIGH,20000);
 rx1 = constrain (rx1, 1001, 2000);
 rx1 = map(rx1, 1100, 1890, 1, 125);
 bx1 = char(rx1);
  rx2 = pulseIn(3,HIGH,20000);
 rx2 = constrain (rx2, 1001, 2000);
 rx2 = map(rx2, 1100, 1890, 1, 125);
 bx2 = char(rx2);
  rx3 = pulseIn(4,HIGH,20000);
 rx3 = constrain (rx3, 1001, 2000);
 rx3 = map(rx3, 1100, 1890, 1, 125);
 bx3 = char(rx3);
  rx4 = pulseIn(5,HIGH,20000);
 rx4 = constrain (rx4, 1001, 2000);
 rx4 = map(rx4, 1100, 1890, 1, 125);
 bx4 = char(rx4);
  rx5 = pulseIn(6,HIGH,20000);
 rx5 = constrain (rx5, 1001, 2000);
 rx5 = map(rx5, 1100, 1890, 1, 125);
 bx5 = char(rx5);
  rx6 = pulseIn(7,HIGH,20000);
 rx6 = constrain (rx6, 1001, 2000);
 rx6 = map(rx6, 1100, 1890, 1, 125);
 bx6 = char(rx6);
    Serial.print(bx1);
    Serial.print("\t");
    Serial.print(bx2);
    Serial.print("\t");
    Serial.print(bx3);
    Serial.print("\t");
    Serial.print(bx4);
    Serial.print("\t");
    Serial.print(bx5);
    Serial.print("\t");
    Serial.print(bx6);
    Serial.println("\t");




 {
    expansionWrite(bx1, bx2, bx3, bx4, bx5, bx6);  //Whenever you want to write to the
}}

void expansionWrite(int value1, int value2, int value3, int value4, int value5, int value6)
{
  //pin = pin-100;             substracts 100 to it maps to the real ports on the expansion arduino
  Wire.beginTransmission(2); //Transmit to device #2
//  Wire.write(pin);            //Sends one byte stating the pin to be addressed
  Wire.write((int)value1);
  Wire.write((int)value2);
  Wire.write((int)value3);
  Wire.write((int)value4);
  Wire.write((int)value5);
  Wire.write((int)value6);    //Sends the value to be transmitted to the pin selected
  Wire.endTransmission();    //Stop transmitting
}