[AVR] PIR and Atmega128 on PC4 ?

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bianchi77

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Guys,

I want to detect PIR on PC4,

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

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