PaulRB:
I see.Well, I am hoping we need only to replace this function:
void display() {
for (byte a2 = 0; a2 < 8; a2++) {
sr1w(a2);
sr2w(a2);
digitalWrite(str1, HIGH);
}
}
thanks paul . i can handle hardware but this coding thing is 
..... this is the main reason am here.
you can see with 74ch595 my matrix is not bright. 
:(. can you tell me wht exactly i need to change in code.
