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MoonCampaign by Tanvi (12 years)
my project is called the RGB LED Traffic Light made using Arduino. The RGB LED can produce multiple colors by combining red, green, and blue light. In my project, I used these colors to simulate a real traffic signal. The red light turns on for five seconds, yellow for two seconds, and green for five seconds, repeating in a loop. I adjusted the brightness values so that the yellow color appears correctly. It was fun and educational!
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Moonpreneur STEM Program Student
Project Name: Rgb Led Traffic Light Signal
Skills
Arduino programming, sensor integration, conditional logic, product design, and more
Category
Show n Tell
MoonCampaigns highlight student's creativity, public speaking, presentation skills, and teamwork, with an impressive track record that speaks volumes. MoonCampaigns, through quarterly Show & Tell, highlight thousands of inspiring learning stories from Moonpreneur students worldwide.
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parents observed transformational changes in their ward's STEM knowledge and leadership skills
Parents Reported Increased Confidence in their child
I’m excited to share my project — the RGB LED Traffic Light made using Arduino. This project simulates a real traffic signal system using an RGB LED. An RGB LED is a special type of light that can produce any color by combining the three primary colors: red, green, and blue. The LED has four pins — one for each color and one for the common ground (cathode).
In my project, I connected the red pin to digital pin 9, the green pin to pin 10, and the blue pin (which I used for yellow) to pin 11 on the Arduino board. In the code, I set up each pin as an output and programmed the LED to display different colors in sequence.
The program starts with the red light (pin 9) on for 5 seconds, signaling “stop.” Next, it shows the yellow light for 2 seconds, created by mixing red and green at specific brightness levels. I adjusted the color values so the yellow would appear correctly — not too green or too bright. Finally, the green light (pin 10) turns on for 5 seconds, signaling “go.”
This loop repeats continuously, just like a real traffic signal. I designed and tested the circuit in Tinkercad, which made it easy to simulate and troubleshoot connections before building the real version.
Through this project, I learned how to use RGB LEDs, set up Arduino pins, and adjust color brightness using code. It was a great way to combine creativity with coding and electronics.
See what people around the world are saying about Tanvi innovative
Rgb Led Traffic Light Signal project
WEF's Future of Jobs Report 2025 reveals that 40% of employers expect to reduce their workforce where AI can automate tasks . While AI is projected to create 69 million new jobs globally by 2030, it will simultaneously eliminate 83 million positions, particularly in clerical, administrative, and routine cognitive roles. The message is clear: routine tasks are being automated, but critical thinking and communication skills cannot be replaced.
Critical Thinking & Analysis
Rated by 78% of business executives as the most important skill they seek, yet only 34% of college graduates arrive well-prepared in this area
Communication Skills
Essential for collaboration, innovation, and leadership in STEM fields
Problem-Solving
The ability to break down complex, unprecedented challenges and devise creative solutions
Adaptability & Resilience
Mental agility to assess new situations and pivot strategies in rapidly changing environments
When students (ages 7-16) build projects, they're not just learning to code, they're developing the future-proof skills that AI cannot replicate:
Technical Skills:
Arduino programming, sensor integration, conditional logic, and hardware troubleshooting
Critical Thinking:
Analyzing real-world safety problems, designing solutions, and debugging when things don't work as expected
Communication:
Articulating their process, presenting their work, and explaining complex technical concepts in accessible language
Digital Marketing & Entrepreneurship:
Showcasing their innovations publicly, building their personal brand, and learning to pitch their ideas
Problem-Solving:
Overcoming challenges like mixed-up variables and incorrect responses through systematic troubleshooting
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