ESP32 + LTE Module + HTTP Dashboard Control
By Yarana IoT Guru – Mr. Abhishek Maurya
🔥 Introduction
Is project me maine ek powerful 4G LTE Based Home Automation System develop kiya hai jo WiFi ke bina bhi kaam karta hai.
Is system me:
- ESP32 microcontroller use kiya gaya hai
- 4G LTE Module (SIM based internet) use kiya gaya hai
- HTTP request based communication use hua hai
- Web dashboard se relay control hota hai
- Real-time ON/OFF control possible hai
Ye system specially un jagahon ke liye perfect hai jahan WiFi available nahi hota.
🚀 Why 4G LTE Instead of WiFi?
Normally home automation WiFi pe based hota hai.
Lekin:
❌ Har jagah WiFi available nahi hota
❌ Remote locations me broadband nahi hota
❌ Industrial areas me dedicated SIM based control chahiye hota hai
Isliye is project me maine 4G LTE + HTTP communication architecture design kiya hai.
⚙️ System Architecture
User (Mobile / Browser)
↓
Web Dashboard (HTTP Request)
↓
Server / API
↓
4G LTE Network (SIM Data)
↓
ESP32 + LTE Module
↓
Relay Control
🧠 Core Technologies Used
- ESP32
- 4G LTE Module (SIM Based Internet)
- HTTP GET / POST Requests
- Web Dashboard
- Relay Module
- APN Configuration
🔌 Hardware Used
- ESP32
- 4G LTE Module (SIM7600 / A7670C type)
- Active SIM Card
- 4 Channel Relay
- Power Supply (5V / 12V based on module)
💡 Key Features
1️⃣ WiFi Independent System
Ye system completely SIM internet pe kaam karta hai.
- No WiFi required
- No local router required
- Direct cellular communication
Perfect for:
- Farms
- Remote pump control
- Industrial automation
- Street light control
2️⃣ HTTP Based Communication
System HTTP request use karta hai:
- Server se relay state fetch karta hai
- Server pe status update karta hai
- Simple and reliable architecture
Advantages:
✔ Easy debugging
✔ No broker required
✔ Direct API integration
✔ Lightweight
3️⃣ Real-Time Relay Control
User dashboard se relay ON/OFF karta hai:
- Server pe update hota hai
- ESP32 periodically HTTP request karta hai
- Relay state update ho jata hai
Fully cloud controlled system.
4️⃣ APN Based Internet Configuration
LTE module me:
- APN set kiya jata hai (Example: airtelgprs.com)
- PDP context activate hota hai
- IP assign hota hai
- Internet connection establish hota hai
Proper AT command flow use kiya gaya hai.
5️⃣ Robust AT Command Debugging
Is project me:
- Complete AT response monitor hota hai
- Network registration check hota hai
- Signal strength monitor hota hai
- HTTP response debug hota hai
Isse troubleshooting easy ho jati hai.
🔐 Working Flow Detail
Step 1: Power ON
- ESP32 boot hota hai
- LTE module initialize hota hai
- Network register hota hai
- Internet activate hota hai
Step 2: Server Communication
- ESP32 server se relay state fetch karta hai
- JSON ya simple response read karta hai
- Relay accordingly ON/OFF hota hai
Step 3: Status Update
- Relay state change hone par
- Server ko status send hota hai
- Dashboard me reflect hota hai
📊 Use Cases
✔ Agriculture Motor Control
✔ Remote Water Pump System
✔ Street Light Automation
✔ Industrial Machine Control
✔ Solar Monitoring
✔ Smart Village Projects
🛡 Safety & Stability
- Network failure detection
- Reconnect logic
- HTTP retry mechanism
- Relay default safe state
- Serial debugging output
🌍 Advantages of This Architecture
✅ Works anywhere with SIM network
✅ No WiFi dependency
✅ No MQTT broker needed
✅ Low cost deployment
✅ Scalable design
✅ Industrial ready
📥 Download Complete Source Code
📺 Full Video Tutorial
Is project ka detailed tutorial available hai:
🎥 YouTube Channel: Yarana IoT Guru
(Search: 4G LTE Home Automation Yarana IoT Guru)
- 4G LTE Home Automation
- ESP32 LTE IoT Project
- SIM Based Home Automation
- HTTP Based IoT System
- ESP32 HTTP Relay Control
- Cellular IoT Automation
- GSM Based Smart Control
👨💻 Developed By
Mr. Abhishek Maurya
Founder – Yarana IoT Guru
Official Contact: +91-7052722734
Website: https://yaranaiotguru.in
❤️ Final Words
Agar aap WiFi ke bina remote location me automation banana chahte ho,
toh ye 4G LTE based architecture aapke liye perfect solution hai.
Ye project beginners se lekar advanced IoT developers tak sabke liye valuable hai.
Aap isse apne industrial ya commercial projects me bhi implement kar sakte ho.