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Re: [AVR-Chat] Testing a switch on ATMega128

2005-01-18 by Paul Maddox

> I have the following 
> 
> 5v ------ switch ------10K resistor --- ground
>                    |
>                    |-- 330 resistor -- PORTD4
> 

huh?
Try this ;-

5v ------ switch --+---10K resistor --- ground
                             |
                             |--- PORTD4
 
This assumes the switch is the 'normally open' type.

> printf("pinb %i ",PIND4);
> if (PIND4) 

Assuming we're talking CodeVision AVR ;-
> printf("pinb %i ",PIND.4);
> if (PIND.4) 

Paul

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