Convert hex data string to NSData in Objective C (cocoa)

Question

fairly new iPhone developer here. Building an app to send RS232 commands to a device expecting them over a TCP/IP socket connection. I\'ve got the comms part down, and can s

Answer 1

Another way to do it.

-(NSData *) dataFromHexString:(NSString *) hexstr
{
    NSMutableData *data = [[NSMutableData alloc] init];
    NSString *inputStr = [hexstr uppercaseString];

    NSString *hexChars = @"0123456789ABCDEF";

    Byte b1,b2;
    b1 = 255;
    b2 = 255;
    for (int i=0; i