How can I digitalRead a pin that is in pinMode OUTPUT?

Question

I have a very simple test sketch in which I\'m trying to set a pin to HIGH and then read its state with digitalRead. Here is my sketch.

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Answer 1

Are you trying to set the default input to HIGH?
If so you are looking to activate the pull-up register:

void setup() 
{
    Serial.begin(9600);
}

void loop() 
{
    delay(1000);

    pinMode(3,INPUT);         // default mode is INPUT  
    digitalWrite(3, HIGH);    // Turn on the internal pull-up resistor, default state is HIGH  

    delay(1000);
    Serial.println(digitalRead(3));
}

Excerpt from DigitalWrite:

If the pin is configured as an INPUT, writing a HIGH value with digitalWrite() will enable an internal 20K pullup resistor.