Hi i need to send some sequence of hex code read from xml to the serial port for example i will read the hex code as f0900080 in this f0 90 00 80 is all hex code when i send it through visa it is sending as string so that my receiver is taking each as char such thet 'f'is one char and taking value as 0x66(hex equalent for 'f').i need to send as hex value only help me out