Build an RGB Mode Cycler with ESP32
Learn by building a real, working RGB LED system that cycles colours with a button using PWM on the ESP32. No prior experience needed.
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Description
In this workshop, you’ll build a smart lighting project using an ESP32 and an RGB LED. A single button press will cycle through predefined colour modes, with smooth transitions powered by Pulse Width Modulation. The result is a responsive, interactive light that showcases how simple components can create dynamic, real-world effects.
This project blends digital input with analogue-style control, offering a hands-on introduction to microcontroller programming and interactive design. It’s a compact, creative build that lays the foundation for more advanced future smart lighting workshops.
What You’ll Learn

Workshop Details
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Is This Workshop Right for You?
Absolutely—if any of this sounds like you:
- You're a beginner curious about electronics or microcontrollers.
- You’ve dabbled with Arduino or Raspberry Pi and want to level up with ESP32.
- You want hands-on experience building a real, working project (not just theory).
- You’re an IoT enthusiast eager to start creating your own smart devices.
- You want a fun build challenge that results in a working smart light.
Even if you've never written code or wired a circuit before, we'll help you get started.
Prerequisites
No prior experience needed.
Don't meet the prerequisites? If the topic interests you, feel free to join and experience the workshop first, before diving in fully.
Smart Lighting Roadmap
Each Workshop Unlocks New Skills, in a Powerful Smart Lighting System
WorkshopRGB Mode Cycler
Build an RGB LED and cycle through predefined colours using a push-button.
WorkshopLED Brightness Control
Use a potentiometer to smoothly control the brightness of an LED.
WorkshopMotion-Activated Light
Turn on an LED when motion is detected using a PIR sensor.
WorkshopAmbient Light Trigger
Control a lamp based on ambient brightness using a photoresistor or digital light sensor.
WorkshopWi-Fi Light Switch
Host a simple webpage on the ESP32 to toggle an LED using Wi-Fi.
WorkshopColour Selector Lamp
Control an RGB LED’s colour using a web interface with sliders or a colour picker.
WorkshopMQTT Sensor Logger
Measure light intensity and publish readings to an MQTT broker.
WorkshopLive Light Dashboard
Display live light sensor data on a web dashboard using charts or indicators.
Get full access to every upcoming workshop — included with your membership.
Join now and build the complete smart lighting system.
Want to Learn More, Build More & Save More?

Join the Vman Academy Membership and get this workshop — and every future workshop, included for FREE. As a member, you'll unlock:
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Full access to all live and past workshops
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Step-by-step project-based courses (coming soon)
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Access to our private Builder Community
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A front-row seat to everything new we’re building
This workshop is just the beginning. Membership gives you the structured practice to grow from hobbyist to builder.
Meet Your Instructor
It's Nice To Meet You — Welcome to Vman Builds!

Vijay Madas
Hello, I'm Vijay. I'm a practical engineer and a lifelong maker. I created Vman Builds to help people learn real engineering skills by building real projects.
Over the years as an educator, I've helped countless learners go from “not sure where to start” to confidently creating projects they’re proud of. You don’t need an engineering degree—just curiosity and a willingness to learn.
My workshops are designed to guide you step-by-step, with simple goals in mind:
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Help you build something that actually works.
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Teach you how and why it works.
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Give you the confidence to want to keep learning and building more.
Whether you're here to level up your skills or simply looking to explore your curiosity, you're in the right place.
Let's create something great together.
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