// NSString to ASCII
NSString *string = @"A";
int asciiCode = [string characterAtIndex:0]; // 65
// ASCII to NSString
int asciiCode = 65;
NSString *string = [NSString stringWithFormat:@"%c", asciiCode]; // A
// NSString to ASCII
NSString *string = @"A";
int asciiCode = [string characterAtIndex:0]; // 65
// ASCII to NSString
int asciiCode = 65;
NSString *string = [NSString stringWithFormat:@"%c", asciiCode]; // A