Datasheet

9
SoftSerial.write(0xE1);
if (SoftSerial.available()) // if date is coming from software serial port ==> data
is coming from SoftSerial shield
{
while(SoftSerial.available()) // reading data into char array
{
buffer[count++]=SoftSerial.read(); // writing data into array
if(count == 64)break;
}
for (int i=0; i<count; i++) {
Serial.print(buffer[i],HEX); // if no data transmission ends, write buffer to
hardware serial port
}
clearBufferArray(); // call clearBufferArray function to clear the stored data from
the array
count = 0; // set counter of while loop to zero
}
if (Serial.available()) // if data is available on hardware serial port ==> data is
coming from PC or notebook
SoftSerial.write(Serial.read()); // write it to the SoftSerial shield
Serial.println("...");
}
void clearBufferArray() // function to clear buffer array
{
for (int i=0; i<count;i++)
{ buffer[i]=NULL;} // clear all index of array with command NULL
}
 You can see as show below after open serial monitor.