Hey! I have coded a program of LM35 sensor to display temperature on 7seg. My code worked fine on 16F877 but due to some bogus experiments i damaged 877 and got 877A. I programmed it well but my program on this doesn't work then i tried to b'01010101' --> PORTB to check LED. It brightened LEDs for an instant when i put my finger on uC. My 877 config fuses are as follow: __CONFIG _XT_OSC & _CP_OFF & _LVP_OFF & _PWRTE_ON & _WDT_OFF is there any other fuse do i need to add ? Besides that im using 4Mhz crystal of previous experiment. Thanks X4ce -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist