---
title: "RGB Control System with ESP32-C6"
canonical: https://hamzadenizyilmaz.com.tr/projeler/rgb-control-system-esp32-c6
author: "Hamza Deniz Y\u0131lmaz"
created: 2026-07-23T02:34:58.0437227+00:00
published: 2026-07-23T02:34:58.0437227+00:00
---

# RGB Control System with ESP32-C6

## 📌 RGB LED Strip Control System - Custom Project Guide




## 💾 YouTube Video




[YouTube Video](https://youtube.com/shorts/QAX4ULTzuk8)




## 🌟 Project Overview




This document details an ESP32-based RGB LED control system with the following capabilities:



- 🔌 2-channel PWM control for red and green LED strips
- 🕒 Automatic relay control after 19:00 based on Turkey/Istanbul time
- 📱 Web interface and physical button control
- 🏠 HC-SR04 presence detection for energy saving
- 🌤️ LED dance mode based on Turkey/Ankara weather conditions




## 🛠️ Hardware Details




### 🔧 Required Components




| Component | Qty | Notes |
| --- | --- | --- |
| ESP32 DevKit v1 | 1 | Other versions compatible |
| IRFZ44N MOSFET | 2 | For red and green LEDs |
| 5V Relay Module | 1 | Room light control |
| HC-SR04 | 1 | Distance measurement |
| 128x64 OLED (I2C) | 1 | GPIO6 SDA, GPIO7 SCL |
| 10K Potentiometer | 2 | GPIO4 and GPIO5 |
| Button | 3 | GPIO8, GPIO9, GPIO10 |
| 10K Resistor | 5 | For pull-up |
| Breadboard | 1 | Prototyping |
| Jumper Wires | 20+ | For connections |




### 🎛️ Pin Connection Diagram




```mermaid
graph TD;
    ESP32-->|GPIO4|POT1[Potentiometer 1];
    ESP32-->|GPIO5|POT2[Potentiometer 2];
    ESP32-->|GPIO8|BTN1[Button 1];
    ESP32-->|GPIO9|BTN2[Button 2];
    ESP32-->|GPIO10|BTN3[Button 3];
    ESP32-->|GPIO12|MOSFET1[IRFZ44N Red];
    ESP32-->|GPIO13|MOSFET2[IRFZ44N Green];
    ESP32-->|GPIO21|RELAY1[Relay];
    ESP32-->|GPIO7|OLED_SCL[OLED SCL];
    ESP32-->|GPIO6|OLED_SDA[OLED SDA];
    ESP32-->|GPIO14|TRIG[HC-SR04 Trig];
    ESP32-->|GPIO15|ECHO[HC-SR04 Echo];
    MOSFET1-->LED1[Red LED Strip];
    MOSFET2-->LED2[Green LED Strip];
    RELAY1-->LIGHT[Room Light];
```




### ⚡ Power Management




```mermaid
pie
    title Power Consumption (Maximum)
    "ESP32" : 120
    "LED Strip (12V)" : 2000
    "Relay Module" : 80
    "HC-SR04" : 15
    "OLED Display" : 25
```




## 💾 Software Installation




### 📥 Required Libraries



1. **Core Libraries**:



  - ` Adafruit_GFX ` (v1.10.12)
  - ` Adafruit_SSD1306 ` (v2.5.7)
  - ` WiFi ` (v2.0.0)
  - ` ESPAsyncWebServer ` (v3.1.0)
2. **Time and Weather**:



  - ` NTPClient ` (v3.2.1)
  - ` ArduinoJson ` (v6.19.4)
  - ` HTTPClient ` (v1.2)




### ⚙️ Code Structure (Detailed)




```plaintext
/RGB-Control-System-with-ESP32-C6
├── /web-server
│   ├── config.php
│   ├── connect.php
│   ├── color.php
│   └── relay.php
├── /includes
│   └── functions.php
└── index.php
│── /src
│   ├── main.ino
└── ├── settings.h
```




### 🔄 Flashing Process



1. In Arduino IDE:



  - Tools \> Board \> ESP32 Dev Module
  - Flash Mode: "QIO"
  - Flash Size: "4MB (32Mb)"
  - Partition Scheme: "Default 4MB"
2. Custom settings:




```cpp
#define WIFI_SSID "YourSSID"
#define WIFI_PASS "YourPassword"
#define OWM_API_KEY "YourAPIKey"
```




## 🎛️ System Features




### 💡 LED Control System



- **PWM Specifications**:

  - 8-bit resolution (0-255)
  - 5kHz PWM frequency
- **Control**:

  - POT1 for red LED adjustment
  - POT2 for green LED adjustment




### ⏱️ Timing System



- Turkey/Istanbul timezone (GMT+3)
- Relay activates after 19:00 based on HC-SR04 data:

  - Person in room: ON
  - Person leaves: OFF




### 🌤️ Weather Integration



- Ankara weather (OpenWeatherMap API):


```http
GET https://api.openweathermap.org/data/2.5/weather?q=Ankara,TR&appid=YOUR_API_KEY&units=metric&lang=en
```
- BTN3 dance mode: LEDs synchronize based on weather conditions.




## 🖥️ User Interface




### 📺 OLED Menu Structure




```mermaid
graph TD;
    A[Main Menu] --> B[LED Values];
    A --> C[Relay Status];
    A --> D[MOSFET Status];
    B --> B1[Red: 0-255];
    B --> B2[Green: 0-255];
    C --> C1[ON/OFF];
    D --> D1[PWM Setting];
    D --> D2[ON/OFF];
```




### 🕹️ Button Controls




| Button | Single Click | Double Click | Usage |
| --- | --- | --- | --- |
| BTN1 | Menu down | Relay status | POT1 value adjustment |
| BTN2 | Menu up | MOSFET status | POT1 value adjustment |
| BTN3 | Confirm selection | Dance mode | Toggle operations |




### 🌐 Web Interface



- **Endpoints**:


```
/           # Homepage
/relay/on   # Relay on
/relay/off  # Relay off
```




## 🔧 Troubleshooting - Ultimate Guide




### 🚨 Common Issues



1. **LEDs not lighting**:



  - Check MOSFET gate resistor (10K-100Ω)
  - Verify 12V power supply adequacy
  - Reduce PWM frequency (try 500Hz)
2. **HC-SR04 incorrect measurements**:




```cpp
// Correct settings:
#define TRIG_PULSE 10  // 10μs trigger pulse
#define MAX_DISTANCE 400 // Maximum 4m
```
3. **WiFi connection issues**:



  - Use ` WiFi.mode(WIFI_STA); `
  - Channel setting:


```cpp
WiFi.begin(ssid, password, 6); // Channel 6
```




### 📊 Test Commands (Serial Monitor)




```bash
# System info
> SYSTEM INFO

# LED test
> LED TEST RED 255

# Relay test
> RELAY TOGGLE

# Sensor test
> SENSOR READ
```




## 📈 Advanced Settings




### ⚙️ EEPROM Configuration




| Address | Data | Size |
| --- | --- | --- |
| 0x00 | WiFi SSID | 32 byte |
| 0x20 | WiFi Pass | 64 byte |
| 0x60 | LED Settings | 16 byte |
| 0x70 | Timing | 32 byte |




## 📜 License



- **License**: CERN-OHL-S-2.0




## 🤝 Our Sponsors




![Elecrow Logo](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/elecrow.png)
⚡ Elecrow - The Ultimate Electronics Manufacturing Partner for Makers Worldwide




### 🌟 Why Elecrow Powered Our Project




As the backbone of our hardware supply chain, Elecrow delivered:



- **Mission-critical components**: IRFZ44N MOSFETs, 10K resistors, HC-SR04 sensors
- **Lightning-fast logistics**: 72-hour emergency delivery for prototyping phases
- **Engineer-to-engineer support**: Customized circuit design recommendations




### 🛠️ Elecrow's Complete Ecosystem




| Service | Capabilities | Maker Advantages |
| --- | --- | --- |
| **PCB Fabrication** | 2-16 layer boards | 5 free prototype boards24h rapid turnaround |
| **Component Store** | 10,000+ parts | Competitive pricingVerified quality control |
| **Full Assembly** | SMT & THT | One-stop solutionRobotic precision |




### 💎 Exclusive Perks for Our Community




```markdown
- [ ] **NEW20** → 20% off first order
- [ ] **FREESHIP** → Free shipping over $150
- [ ] **ASK10** → 10 free consulting minutes
```




### 🏆 Testimonial




> "When our MOSFETs failed during testing, Elecrow's team **personally hand-selected** replacement units and expedited shipping. This level of care makes them the **unsung hero of hardware startups**."
> 
> **— RGB-Control-System-with-ESP32-C6**, Project Lead




Connect With Elecrow




```
[🌐 Official Site](https://www.elecrow.com) | 
✉️ Support | 
[💼 LinkedIn](https://linkedin.com/company/elecrow)
```




![Elecrow Team](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/elecrow.png)
Elecrow's engineering team reviewing our project requirements




---




### 🔍 Explore Further



- **[Component Catalog PDF](https://www.elecrow.com/docs/catalog2023.pdf)**
- **[Live Assembly Line Webcam](https://www.elecrow.com/factory-tour)**
- **[Maker Success Stories](https://blog.elecrow.com/case-studies)**




---




**🛡️ Trust Indicators:**

✔ ISO 9001 & UL Certified

✔ PayPal & Escrow Protection

✔ 365-Day Quality Warranty




**\#ElecrowHeroes \#HardwareMadeEasy \#MakerMovement**




---




**Pro Tip:** Show this badge on your project enclosure to get VIP treatment on future orders:

![Elecrow Sponsor Badge](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/elecrow.png)




## 🤝 Our Sponsors




![Rhino 3D Logo](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/rhino3d.png)
🎯 Rhino 3D – Powering Precision in Digital Fabrication and Parametric Design




### 🌟 Why Rhino 3D Backed Our Project




Our project thrives at the intersection of hardware and digital creativity — and **Rhino 3D** made that possible by delivering:



- **Parametric modeling flexibility**: Complex control enclosures and 3D-printable casing design
- **Seamless compatibility**: Export-ready formats for laser cutting, CNC milling, and 3D printing
- **Precise prototyping**: 0.01mm tolerance modeling ensured hardware alignment on the first try




With Rhino’s powerful NURBS modeling engine, we achieved advanced geometric detail without compromising manufacturability or time-to-market.




### 🧩 How Rhino 3D Elevated Our Workflow




| Feature | Contribution to Project | Bonus Insight |
| --- | --- | --- |
| **Grasshopper** | Parametric casing & modular enclosures | Interactive adjustments in real-time |
| **Mesh Tools** | Optimized STL export for 3D printing | Zero mesh errors on slicing |
| **Plugin Ecosystem** | Kangaroo, LunchBox, Human UI | Integrated user interaction + form-finding |
| **File Interoperability** | Export to STEP, IGES, STL | Easy transition from design to fabrication |




### 🧠 Designed with Intention




Using Rhino 3D, we designed:



- Custom mount brackets for our **ESP32-C6 DevKit**
- **OLED screen bezel** that fits flush within laser-cut panels
- Modular **RGB LED diffuser shells** optimized for IRFZ44N-based control




All components were simulated, exported, and fabricated — **without a single dimensional error**.




### 🏆 Testimonial




> "Designing precision-fit casings for embedded systems is often trial and error — but with Rhino, it became **an exact science**. It’s not just a CAD tool, it’s our digital workshop."
> 
> — RGB-Control-System-with-ESP32-C6, Project Lead




---




🔗 Connect with Rhino




```
[🌐 Official Website](https://www.rhino3d.com/) | 
✉️ Support | 
[💼 LinkedIn](https://www.linkedin.com/company/mcneel-europe)
```




![Rhino 3D in action](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/rhino3d.png)
Design stages of our ESP32-based casing using Rhino 3D




---




## 🏷️ Official Sponsor Badge




Show your appreciation and let the world know you’re backed by professional design tools.




![Rhino 3D Sponsor Badge](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/rhino3d.png)
Place this badge on your project enclosures, documentation, or web dashboard




**Badge Perks:**

✔ Recognized by the Rhino 3D community

✔ Eligibility for early-access plugin invites




> **Tip:** Add this badge on your GitHub Readme or 3D-printed enclosure label to boost your project's professional look.




---




### 🔍 Explore Further



- **[Plugin Marketplace](https://www.rhino3dprinter.com/)**
- **[Community Forum](https://www.rhino3dprinter.com/)**




---




**🛡️ Trust Indicators:**

✔ 25+ years of digital modeling legacy

✔ Global maker and architecture community

✔ Regular updates & academic access




**\#Rhino3D \#ParametricDesign \#HardwareWithStylee**




## 📞 Contact & Support



- **Email**: info@makerpcb.com.tr
- **Website**: https://makerpcb.com.tr
- **Issue Tracking**: GitHub Issues




## 📷 Board & Project Images




![Alt Text](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/4.mp4)




![Alt Text](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/1.jpg)




![Alt Text](https://raw.githubusercontent.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6/HEAD/images/2.jpg)




---




This document covers all project details. Follow the project GitHub page for updates:

🔗 [GitHub Repository](https://github.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6)




Project Versiyon: V1.5

## RGB Control System with ESP32-C6 — kaynak ve uygulama notları

### Proje ve belgeyi birlikte değerlendirin

Bu kayıt için kaynak açıklama korunmuştur. Kurulum, bağımlılık ve lisans kararlarında bu kayda bağlı proje ve dokümanı birlikte inceleyin; doğrulanmamış sürüm, ölçüm veya özellik bu ekle ilan edilmemiştir.

### Metinde geçen depo bağlantıları

- [Depo bağlantısı](https://github.com/hamzadenizyilmaz/RGB-Control-System-with-ESP32-C6)

### İlgili okuma yolu

- [RGB-Control-System-with-ESP32-C6 Proje Dokümanı](/dokumanlar/github-rgb-control-system-with-esp32-c6)

- [kubeadm ile Tek Control Plane Kubernetes Kurulumu](/blog/kubeadm-ile-tek-control-plane-kubernetes-kurulumu)

- [kubeadm ile Yüksek Erişilebilir Kubernetes Control Plane](/blog/kubeadm-ile-yuksek-erisilebilir-kubernetes-control-plane)