Hello, The values I sent from my microcontroller over a RS232 to the hyperterminal appear on my screen. But I want instead of each certain value that a comment appears.How can I make this.Can I make this with the programm in the microcontroller(perhaps printf) or must I write a programm for the PC and hyperterminal,that if the microcontroller send the values this programm receive it and change it in a comment? Thanks Ingo