<!DOCTYPE html> <html> <body> <h2>HTML Iframes</h2> <p>You can use the height and width attributes to specify the size of the iframe:</p> <iframe src="demo_iframe.htm" height="200" width="300" title="Iframe Example"></iframe> </body> </html>
#define D0 16
#define LED D0
void setup()
{
pinMode(LED,OUTPUT);
}
void loop()
{
digitalWrite(LED,HIGH);
delay(250);
digitalWrite(LED,LOW);
delay(250);
}