Project.4 Laser Module
=========================

Description
------------
The KY-008 is a laser transmitter module that creates a dot-shaped laser beam 
that can be used as a laser pointer or to create mini laser shows.


Specification
--------------
- Wavelength: 650 nm (Red)
- Laser Power: 5 mW
- Operating Voltage: 3-5 volts
- Operating Current: ~ 30 mA

Connect
--------
.. image:: /img/connect/4_bb.png

Code
-----
.. code-block:: C

    void setup() {
    pinMode(9, OUTPUT);  
    }

    void loop() {
    digitalWrite(9, HIGH);
    delay(300);
    
    digitalWrite(9, LOW);
    delay(700);
    }


Phenomenon
------------
.. image:: /img/phenomenon/4.jpg