Sensor 4: Mini Two-Color
1st Mauro Jake Sabanal 2nd Jerome R. Pastrana 3rd Gienno Petalcorin 4th Elaija Rodriguez
Electrical Engineering Electrical Engineering Electrical Engineering Electrical Engineering
Cebu Technological University Cebu Technological University Cebu Technological University Cebu Technological University
Cebu, Philippines Cebu, Philippines Cebu, Philippines Cebu, Philippines
maurojake.sabanal@ctu.edu.ph jerome.pastrana@ctu.edu.ph gienno.petalcorin@ctu.edu.ph elaija.rodriguez@ctu.edu.ph
5th Hya Shane Tejume
Electrical Engineering
Cebu Technological University
Cebu, Philippines
hyashane.tejume@ctu.edu.ph
Abstract—The KY-011 Two Color LED Module represents
a versatile electronic component widely utilized in various
applications, ranging from simple hobby projects to advanced
electronics systems. This module integrates two light-emitting
diodes (LEDs) of different colors, typically red and green, within
a compact package. By independently controlling the intensity
of each LED, it enables the generation of a spectrum of colors,
offering creative possibilities for visual displays, status indicators,
and decorative lighting. This abstract provides an overview of
the KY-011 Two Color LED Module, exploring its key features,
operating principles, applications, and potential for integration
into diverse electronic projects. Through a comprehensive exam-
ination, it elucidates the significance of this module in the realm
of electronics prototyping, education, and innovation.
I. I NTRODUCTION
The KY-011 Two Color LED Module stands as a fun- Fig. 1. Mini Two-Color Sensor in Calibration
damental component in the realm of electronics, offering a
straightforward yet powerful means of incorporating colorful
illumination into various projects. This module features two II. M ETHODOLOGY
distinct LEDs housed within a single package, typically emit- A. Familiarization with the Module
ting red and green light, thereby enabling a spectrum of colors
to be produced through varying intensity levels of each LED. - Understand the physical structure and components of the
Its compact design and ease of integration make it a popular KY-011 Two Color LED Module. - Identify the pins and their
choice among hobbyists, educators, and professionals seeking corresponding functions, typically including power (VCC),
to add visual flair or signaling functionality to their creations. ground (GND), and control (IN1 and IN2) pins.
This introductory document aims to provide an overview B. Study the Datasheet
of the KY-011 Two Color LED Module, outlining its key
features, operating principles, and potential applications. By - Refer to the manufacturer’s datasheet or documenta-
delving into its construction, electrical characteristics, and tion for detailed specifications, electrical characteristics, and
practical usage scenarios, readers will gain a comprehensive recommended operating conditions. - Gain insights into the
understanding of how to effectively incorporate this module maximum current ratings, forward voltage requirements, and
into their electronic projects. Whether used for decorative typical operating voltages of the LEDs.
lighting, status indication, or creative experimentation, the KY-
011 Two Color LED Module offers a versatile solution for C. Power Supply Considerations
illuminating the world of electronics with vibrant colors and - Determine the appropriate power supply voltage based
dynamic visual effects. on the specifications provided in the datasheet. - Ensure the
power supply can deliver sufficient current to drive both LEDs TABLE I
without exceeding their rated limits. M INI T WO -C OLOR T EST R ESULTS
Test Serial Display Output
D. Interfacing with Arduino 1 Red/Green Red/Green Red/Green
- Connect the KY-011 module to a microcontroller board, 2 Red/Green Red/Green Red/Green
3 Red/Green Red/Green Red/Green
such as Arduino, using jumper wires. - Assign digital output 4 Red/Green Red/Green Red/Green
pins on the microcontroller for controlling the individual LEDs 5 Red/Green Red/Green Red/Green
(IN1 and IN2). 6 Red/Green Red/Green Red/Green
7 Red/Green Red/Green Red/Green
E. Programming Logic 8 Red/Green Red/Green Red/Green
9 Red/Green Red/Green Red/Green
- Develop a programming logic or algorithm to control the 10 Red/Green Red/Green Red/Green
behavior of the LEDs based on the desired lighting effects 11 Red/Green Red/Green Red/Green
12 Red/Green Red/Green Red/Green
or signaling patterns. - Utilize the digitalWrite() function in 13 Red/Green Red/Green Red/Green
Arduino IDE or equivalent commands in other programming 14 Red/Green Red/Green Red/Green
environments to toggle the state of the LED pins. 15 Red/Green Red/Green Red/Green
16 Red/Green Red/Green Red/Green
F. Testing and Debugging 17 Red/Green Red/Green Red/Green
18 Red/Green Red/Green Red/Green
- Write a simple test code to verify the functionality of 19 Red/Green Red/Green Red/Green
20 Red/Green Red/Green Red/Green
the KY-011 module. - Check for proper connections, ensuring 21 Red/Green Red/Green Red/Green
that each LED responds as expected to the programmed com- 22 Red/Green Red/Green Red/Green
mands. - Debug any issues related to wiring errors, incorrect 23 Red/Green Red/Green Red/Green
24 Red/Green Red/Green Red/Green
pin assignments, or programming mistakes. 25 Red/Green Red/Green Red/Green
26 Red/Green Red/Green Red/Green
G. Exploring Color Combination 27 Red/Green Red/Green Red/Green
- Experiment with different combinations of red and green 28 Red/Green Red/Green Red/Green
29 Red/Green Red/Green Red/Green
LED intensities to create custom colors and hues. - Adjust the 30 Red/Green Red/Green Red/Green
duty cycle or pulse width modulation (PWM) values to control
the brightness levels of each LED independently.
Additionally, the design and circuitry of the module may
H. Documentation and Refinement
contribute to its stable operation, ensuring that the red and
- Document the connections, code snippets, and observa- green LEDs are properly driven and controlled without expe-
tions for future reference and troubleshooting. - Refine the riencing fluctuations or inconsistencies.
implementation based on feedback, optimizing the code for Furthermore, the testing environment and methodology em-
efficiency and enhancing the visual effects produced by the ployed in this study may have contributed to the reproducibil-
LEDs. ity of results. By maintaining consistent testing parameters and
III. R ESULTS AND D ISCUSSION procedures throughout the experiments, any potential sources
of variability or error were minimized, leading to reliable and
The results of the tests conducted on the Mini Two-Color
repeatable outcomes.
LED module indicate consistent and uniform performance
across all trials. The module consistently displayed a com- IV. C ONCLUSION
bination of red and green light output, as expected, with Overall, the results of this study affirm the functionality and
no observable variations or deviations throughout the testing reliability of the Mini Two-Color LED module for applications
process. Each test iteration yielded the same output of red and requiring dual-color illumination. Further experimentation and
green illumination, confirming the reliability and stability of real-world deployment may provide additional insights into the
the module’s functionality. module’s performance under different operating conditions and
The consistent output of red and green light observed in usage scenarios.
all test cases suggests that the Mini Two-Color LED module
operates reliably and predictably under the specified testing V. D OCUMENTTATION
conditions. The module effectively emits both red and green
light simultaneously, fulfilling its intended purpose as a two-
color illumination device.
One possible explanation for the uniformity in output could
be the high quality and precision of the components used
in the module’s construction. The LEDs within the module
may exhibit consistent electrical characteristics and emission
properties, resulting in reliable performance across multiple
test trials.
