cooking machine

#include <SoftwareSerial.h>
#include <Wire.h>
SoftwareSerial I2CBT(10,11);

void setup()
{
  Serial.begin(9600);
  I2CBT.begin(9600);
}

void loop()
{
  byte cmmd[20];
  int insize;
  char c = ' ';
  if (I2CBT.available())
  {  //判斷有沒有訊息接收
      c = I2CBT.read();
      Serial.write(c);
  }
  switch (c)
  {
    case 'a':
      Serial.println("AAAAAAA");//將接收的訊息顯示出來
    break;

    case 98:
    break;
  }
}