Laser transmitter module, 650 nm (red), gives a small intens beam. Take care of your eyes, do not look direct into the beam.
Power consumption: 30 mA at 5 V
The module is labeled wrong, see below !!
Routines source code:
void setup ()
{
pinMode (13, OUTPUT); // define the digital output interface 13 feet
}
void loop () {
digitalWrite (13, HIGH); // open the laser head
delay (1000); // delay one second
digitalWrite (13, LOW); // turn off the laser head
delay (1000); // delay one second
}