WMPRO FW >= 1.0 WMMEGA FW >= 2.0

Print to debug output

$output: A string to output

None

<?
  debug("This is a debug message");
  // this will appear on the serial port if connected to a console
?>

Serial Port Programming - Some information on connecting and using the serial ports

debugout() - Enable or disable debug messages

error_reporting() - Set the debug output level

log() - Print to the System Log (or optional file)

print() - Print data to the current output stream such as a web page or terminal