[AVR] PIR and Atmega128 on PC4 ?

[bianchi77]

Guys,

I want to detect PIR on PC4,

I have created like below but got no proper response yet, any ideas ?

#define PIR_PIN PINC   //PIR input port
#define PIR	PC4 

DDRC = 0x70;  
if (bit_is_set(PIR_PIN, PIR))
		{
			lcd_string("PIR is detecting!");
		}

Thanks

 

[FvM]

You're apparently referring to specific libraries, but you forgot to tell which.