Instructions

SoftSerial Shield is connected to the Software UART:D2&D3
*/
#
include
<SoftwareSerial.h>
SoftwareSerial
SoftSerial
(2, 3);
unsigned
buffer[64]; // buffer array for data receive over serial port
int
count = 0; // counter for buffer array
void
setup
()
{
SoftSerial.begin(9600); // the SoftSerial baud rate
Serial.begin(9600); // the Serial port of Arduino baud rate.
}
void
loop
()
{
// if date is coming from software serial port ==> data is coming from SoftSerial shield
if
(SoftSerial.available())
{
while
(SoftSerial.available()) // reading data into char array
{
buffer[count++] = SoftSerial.read(); // writing data into array
if
(count == 64)
break
;
}
Serial.write(buffer, count); // 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
}
void
clearBufferArray
() // function to clear buffer array
{
// clear all index of array with command NULL
for
(
int
i=0; i<count; i++)
{
buffer[i]=NULL;
}
}
Step 2. Open the Serial Monitor, the card information can be displayed as
shown below: