Ok, this is driving me batty.

I have a processing sketch that reads a web page, and determines if that page is displaying a 0 or 1.
I am writing that value to serial COM4. Using "println(lampState);" I can see that the variable is getting set correctly; output is either a 0 or 1.

I have an Arduino sketch that I want to monitor COM4, and if it's a 0, do nothing, and if it's a 1, light the led.

This is my code -

Processing:
import processing.serial.*;
Serial port;

void setup()
{
 port = new Serial(this, "COM4", 9600);  
}

void draw()
{
 // get variable
 int lampState;
 String digit[] = loadStrings("<URL>");
 int num = Integer.parseInt(digit[0]);
 lampState = num;
 
 port.write(lampState);
 println (lampState);
}


Arduino:

int ledPin = 13;
int lampState;

void setup()
{
 Serial.begin(9600);
 pinMode(ledPin, OUTPUT);
}

void loop()
{
 lampState = serialRead();

if (lampState = 1) {
   digitalWrite(ledPin, HIGH);}
else {
digitalWrite(ledPin, LOW);
}
Serial.flush();
}

Except that ledPin is always HIGH.

Any guidance in getting this to work would be greatly appreciated.

Yes, I did have a delay written into the original Processing sketch; I just forgot to carry that into the revision. I could even move the sketch to the computer that's hosting the file, so that the query wouldn't even run across the network, it does only need to check it every seconds. I couldn't get delay() to work properly, so I used frameRate(1).

Thanks!