If I use the internal pull up resistor, then I don't need to connect the Vcc as well right? Just connect the emitter to ground n collector directly to input pin?In case I need to use an entire port as input with pull up resistor, then will this code work,Code: [Select]DDRL = 0x00;PORTL = 0xFF;
DDRL = 0x00;PORTL = 0xFF;
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