Private 4G LTE IoT Gateway Variant 6
Deploy a Self-Powered 4G LTE IoT Gateway with Arduino Mega & SIM7600
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine monitoring a remote agricultural field, a weather station on a hillside, or an infrastructure asset kilometres from the nearest Wi‑Fi network. This kit puts a private 4G LTE data pipeline in your hands. You’ll assemble a fully solar-powered unit that reads temperature, humidity, and barometric pressure, timestamps every measurement using an RTC, logs it locally to a microSD card, and simultaneously publishes the data over LTE to any MQTT broker — entirely off‑grid.
What You'll Build
You’ll create a waterproof, self-contained IoT gateway that wakes up periodically, takes sensor readings from a DHT22 and BMP280, appends them to a CSV file on a microSD, and pushes a JSON payload via MQTT over the SIM7600 4G LTE module. The system runs on a rechargeable 18650 battery topped up by a 12 V solar panel through a buck converter and TP4056 charge controller, so it can operate indefinitely in a remote location. The enclosure, cable glands, and prototyping boards transform the electronics into a field-deployable unit ready for real-world use.
What You'll Learn
- Integrating the SIM7600 4G LTE module with Arduino Mega and establishing a stable PPP data connection
- Implementing MQTT communication over a cellular network with QoS‑1 message delivery
- Designing a solar‑powered off‑grid system with proper buck conversion, battery charging, and decoupling
- Building robust data logging that synchronises DS3231 timestamps with SD card writes and remote publishing
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| SIM7600 4G LTE Module | 1 |
| DHT22 | 1 |
| BMP280 | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| LM2596 Buck Converter | 1 |
| 1000µF 25V Caps | 3 |
| 100nF Caps | 10 |
| 4.7kΩ Resistors | 5 |
| PCB Prototype Board | 3 |
| Waterproof Enclosure | 1 |
| 12V Solar Panel | 1 |
| 18650 Cell | 2 |
| TP4056 Module | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is built for B.Tech ECE/EEE final-year students at IITs, NITs, VIT, and BITS who need a semester project or a prototype for the Smart India Hackathon hardware track. It also serves engineers designing remote asset monitoring for agriculture, environment, or utility metering, and R&D teams exploring private cellular IoT backbones. If you’ve already worked with Arduino and want to move beyond Wi‑Fi into real‑world LTE deployments, this kit delivers exactly that experience.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Open the AI companion with the QR code on the box; it’s been trained on every step of this gateway assembly. You can also send photos via WhatsApp and get human guidance within a few hours.
Does this kit work with BSNL, Jio, and Airtel 4G networks in India?
Yes, the SIM7600E module supports LTE-FDD bands B3 and B5 as well as TDD band B40, which cover the major Indian operators. Simply insert a standard Nano SIM with an active data plan and the firmware will handle the rest.
Can I connect additional sensors to this gateway?
The Arduino Mega has plentiful I/O — spare I²C, SPI, analog, and digital pins. You can extend the code to read a soil moisture probe, a rain gauge, or an ultrasonic distance sensor, and publish those values over MQTT alongside the existing readings.
Is the enclosure truly waterproof for outdoor deployment?
The included enclosure is IP65-rated, so it withstands rain and dust. When you mount the solar panel and tighten the cable glands as shown in the build guide, it’s suitable for year-round field use. Adding a small desiccant sachet inside is a good extra precaution for high-humidity environments.
SIM7600 4G LTE module on Arduino Mega creates a cellular data gateway publishing MQTT over LTE for remote locations.
What's in this kit
- Arduino Mega 2560
- SIM7600 4G LTE Module
- DHT22
- BMP280
- DS3231 RTC
- MicroSD Module
- LM2596 Buck Converter
- 1000µF 25V Caps x3
- 100nF Caps x10
- 4.7kΩ Resistors x5
- PCB Prototype Board x3
- Waterproof Enclosure
- 12V Solar Panel
- 18650 Cell x2
- TP4056 Module
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items