Would anyone know a instruction to make a stamp save the data in the same format ot was recieved. Example: The device i am adapting to the stamp already contains a pic. The pic should already debug the code and send it threw a max232 device to communicate with a rs232 port. BUT, i do know that this should be sent at a TTL level. and will be useing a converter to lower it to TTL levels. The second device would be a 4X4 ley pad decoder chip that sends binary data and should be debugged by the pic itself and saved in a external eeprom. Could this be done? I really need some help on writeing this program....... Any examples? :shock: