Project9.Mini Double Color Led
================================

Description
------------
The KY-011 Two Color LED module emits red and green light. You can adjust the 
intensity of each color using PWM.
Compatible with popular electronics platforms like Arduino, Raspberry Pi, ESP32 
and more. This module is similar to the KY-029.

Specification
--------------
- Operating Voltage	2.0v ~ 2.5v
- Working Current	10mA
- Diameter	3mm
- Package Type	Diffusion
- Color	Red + Green
- Beam Angle	150
- Wavelength	571nm + 644nm
- Luminosity Intensity (MCD)	20-40; 40-80

Connect
--------
.. image:: /img/connect/9_bb.png

Code
-----
.. code-block:: c

    int greenpin = 11; // pin for green signal
    int redpin = 10; // pin for red signal
    int val;

    void setup() {
        pinMode(redpin, OUTPUT);
        pinMode(greenpin, OUTPUT);
    }

    void loop() {
        for(val = 255; val > 0; val--) { 
            analogWrite(redpin, val); //dim red
            analogWrite(greenpin, 255 - val); // brighten green
            delay(15);
        }
        for(val = 0; val < 255; val++) { 
            analogWrite(redpin, val); //brighten red
            analogWrite(greenpin, 255 - val); //dim green
            delay(15);
        }
    }


Phenomenon
-----------

.. image:: /img/phenomenon/9.jpg