Byte array to string

Projects Programming
1

Hi, im new to arduino programing and i have trouble with byte array converting to array.

byte addr[8];

...

 if(status=="ok"){

     byte i;
     for( i = 5; i >0; i--) {

        byte x = addr[i];
   if(x < 0x10)
   {
     Serial.print('0');
   }
          Serial.print(addr[i],HEX);  

     }

It print me ex. 0A0B0C0D which is perfect result. But i must do some modification in this values, that i need to get them to an array (with leading 0's).

How to do it?

2

Thanks for using code tags, but always post ALL the code.

This will not work if "status" is not a String, and we recommend to avoid Strings.

if (status=="ok")

Please try again to explain your question. I have no idea what you want to do.

3

The code you posted can not print 4 hexadecimal digits. The for() loop executes 5 times.

look up the sprintf() function

char array[9];
for( i = 5; i >0; i--) {
  sprintf( array+ (5-i)*2, "%02X", (unsigned int)addr[i]);
}
4

Also, give a example of the modification you wish to perform on the byte array contents.
There may be an easier way than creating a text representation of the values.