Where can I connect PING ))) Ultrasonic sensors on MEGA 2560?

Hi,

I am interested in connecting 3 Ping ))) sensors on my Arduino Mega 2560. I have been connecting them to pins 7,6, and 5. I was wondering if I could connect them to the pins labeled 'communication' or even 'digital' or the 'analog' pins. is this possible, or do the sensors have to be connected to the "pwm' pins only? I am powering them through the 5 V pin through a breadboard.

thanks!

You can use them with the digital pins, using the pin tutorial on this site.