Manipulate bytes in arduino -

void setup() {   // open serial communications , wait port open:   serial.begin(2400);  }  void loop()  {      while(!serial.available()); // wait character     int incomingbyte = serial.read();     serial.print(incomingbyte,hex);      serial.print(' ');`  }  

i using code above "train of bytes" in arduino, each pulse of bytes give me this: 3 packets 1),2) , 3)

------a-------------b-------------- c-------d----------e-----------f

1) aa 55 || 01 03 05 07 09 || 05 || 0a 02 || 02 22 22 || b3 d0

2) aa 55 || 01 03 05 07 09 || 05 || 0a 07 || 03 33 33 || 2e 80

3) aa 55 || 01 03 05 07 09 || 05 || 0a 0c || 04 44 44 || fa b3

• a => first 2 bytes (aa 55) means beginning of each packet.
• b => 5 next bytes (01 03 05 07 09) identificator.
• c => number of bytes of d + e (is equal 05 in example above)
• d => kind of measuring (0a 02, 0a 07 or 0a 0c)
• e => data, number of measuring, example: 02 22 22 means 22.222 w
• f => crc

i need separate each part , show message this:

for packet 1)

for bytes : beggins here

for b bytes: identificator xyz

for c bytes: number of bytes k

for d bytes: kind of measure m

for e bytes: value of measure 22.222

for f bytes: crc j

this messages must packets 2) , 3) too. have show messages repeatedly, while sending data arduino serial.

thanks me, sorry if have english erros.