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ESP32 Cellular IoT Controller

Cellular IoT Controller | ESP32 2G/4G LTE Industrial Controller - NORVI

Price: $90.19 - $228.05 USD

The cellular IoT controller from NORVI is a professional-grade industrial controller designed for remote monitoring and automation using cellular networks. This ESP32-powered with optional 2G & 4G LTE controller combines cellular connectivity with Wi-Fi and Ethernet, making it the ideal solution for industrial IoT applications where traditional network access is unavailable.

Built as a versatile remote plc, this cellular IoT controller features relay outputs, multiple I/O channels, and functions as an iot gateway. The system supports GSM connectivity with user-selectable 2G or 4G variants, providing SMS-based relay control and remote monitoring without reliance on local networks. The built-in data logger records sensor data, while the wireless plc functionality enables programmable automation for complex industrial processes.

Feature Highlights

  • ESP32-WROOM32 Module
  • GSM / LTE Connection
  • Built-in 0.96 OLED Display
  • Built-in Button on the front panel
  • Digital Inputs
  • Analog Inputs
  • Relay Outputs
  • Ethernet Connectivity
  • DIN-Rail mount
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Cellular IoT Controller Key Features

Cellular Connectivity

4G LTE, 3G, and 2G cellular networks. This cellular IoT controller works anywhere with mobile coverage, no Wi-Fi required.

Industrial-Grade I/O

Relay outputs, digital inputs, and analog inputs. Built as a true industrial controller for harsh environments.

Remote PLC Control

Program the module as a wireless plc with SMS commands, MQTT, or HTTP. Control equipment remotely via cellular iot networks.

Multi-Protocol Gateway

Functions as an iot gateway supporting Modbus, MQTT, HTTP, and custom protocols for seamless integration.

Built-in Data Logger

Local storage for sensor data. The data logger captures readings even during network outages.

ESP32 Powered

Dual-core ESP32 processor with WiFi and Ethernet backup for the 4g lte controller primary cellular connection.

norvi-gsm-ae08-r-g

NORVI-GSM-AE08-R-G

Price: $189.20 USD

4x Sink/Source Digital Inputs | 4x Relay outputs | RS-485 | microSD | RTC | Ethernet

GSM 2G

norvi-gsm-ae08-t-g

NORVI-GSM-AE08-T-G

Price: $184.80 USD

4x Sink/Source Digital Inputs | 4x Transistor outputs | RS-485 | microSD | RTC | Ethernet

GSM 2G

norvi-gsm-ae08-v-g

NORVI-GSM-AE08-V-G

Price: $189.55 USD

6x Sink/Source Digital Inputs | 4x 0 – 10V Analog | RS-485 | microSD | RTC | Ethernet

GSM 2G

norvi-gsm-ae08-i-g

NORVI-GSM-AE08-I-G

Price: $206.05 USD

6x Sink/Source Digital Inputs | 4x 4 – 20mA Analog | RS-485 | microSD | RTC | Ethernet

GSM 2G

norvi-gsm-ae07-r-g

NORVI-GSM-AE07-R-G

Price: $101.41 USD

7x Sink/Source Digital Inputs | 5x Relay outputs | RS-485

GSM 2G

norvi-gsm-ae07-t-g

NORVI-GSM-AE07-T-G

Price: $90.19 USD

7x Sink/Source Digital Inputs | 4x Transistor outputs | RS-485

GSM 2G

norvi-gsm-ae04-v-g

NORVI-GSM-AE04-V-G

Price: $121.44 USD

6x Sink/Source Digital Inputs | 6x 0 – 10V Analog | RS-485 | 2x Transistor Output | RS-485 | microSD | RTC

GSM 2G

norvi-gsm-ae04-i-g

NORVI-GSM-AE04-I-G

Price: $149.60 USD

6x Sink/Source Digital Inputs | 6x 4 – 20mA Analog | RS-485 | 2x Transistor Output | RS-485 | microSD | RTC

GSM 2G

norvi-gsm-ae02-v-g

NORVI-GSM-AE02-V-G

Price: $111.43 USD

7x Sink/Source Digital Inputs | 4x 0 – 10V Analog | RS-485 | 2x Transistor Output | RS-485

GSM 2G

norvi-gsm-ae02-i-g

NORVI-GSM-AE02-I-G

Price: $129.43 USD

7x Sink/Source Digital Inputs | 4x 4 – 20mA Analog | 2x Transistor Output | RS-485

GSM 2G

norvi-gsm-ae08-r-l

NORVI-GSM-AE08-R-L

Price: $211.20 USD

4x Sink/Source Digital Inputs | 4x Relay outputs | RS-485 | microSD | RTC | Ethernet

4G LTE

norvi-gsm-ae08-t-l

NORVI-GSM-AE08-T-L

Price: $206.80 USD

4x Sink/Source Digital Inputs | 4x Transistor outputs | RS-485 | microSD | RTC | Ethernet

4G LTE

norvi-gsm-ae08-v-l

NORVI-GSM-AE08-V-L

Price: $211.55 USD

6x Sink/Source Digital Inputs | 4x 0 – 10V Analog | RS-485 | microSD | RTC | Ethernet

4G LTE

norvi-gsm-ae08-i-l

NORVI-GSM-AE08-I-L

Price: $228.05 USD

6x Sink/Source Digital Inputs | 4x 4 – 20mA Analog | RS-485 | microSD | RTC | Ethernet

4G LTE

norvi-gsm-ae07-r-l

NORVI-GSM-AE07-R-L

Price: $123.41 USD

7x Sink/Source Digital Inputs | 5x Relay outputs | RS-485

4G LTE

norvi-gsm-ae07-t-l

NORVI-GSM-AE07-T-L

Price: $112.19 USD

7x Sink/Source Digital Inputs | 4x Transistor outputs | RS-485

4G LTE

norvi-gsm-ae04-v-l

NORVI-GSM-AE04-V-L

Price: $143.44 USD

6x Sink/Source Digital Inputs | 6x 0 – 10V Analog | RS-485 | 2x Transistor Output | RS-485 | microSD | RTC

4G LTE

norvi-gsm-ae04-i-l

NORVI-GSM-AE04-I-L

Price: $171.60 USD

6x Sink/Source Digital Inputs | 6x 4 – 20mA Analog | RS-485 | 2x Transistor Output | RS-485 | microSD | RTC

4G LTE

norvi-gsm-ae02-v-l

NORVI-GSM-AE02-V-L

Price: $133.43 USD

7x Sink/Source Digital Inputs | 4x 0 – 10V Analog | RS-485 | 2x Transistor Output | RS-485

4G LTE

norvi-gsm-ae02-i-l

NORVI-GSM-AE02-I-L

Price: $151.03 USD

7x Sink/Source Digital Inputs | 4x 4 – 20mA Analog | 2x Transistor Output | RS-485

4G LTE

Industrial Controller Specifications

Cellular IoT Controller Core

  • Processor: ESP32-WROOM32 dual-core
  • Cellular Module: Quectel EC21-G (global bands)
  • Connectivity: 4G LTE/3G/2G + WiFi + Ethernet

Industrial Controller I/O

  • Relay Outputs (10A @ 250VAC)
  • Digital Inputs (5-24VDC)
  • Analog Inputs (0-10V, 4-20mA)

Remote PLC Features

  • Programming: Arduino IDE, ESP-IDF, MicroPython
  • Protocols: MQTT, HTTP, Modbus TCP/RTU, SMS
  • Data Logger: SD card slot, internal flash storage

Cellular IoT Connectivity

  • 4G LTE Bands: B1/B3/B5/B7/B8/B20/B28
  • GSM SMS Controller: Send/receive commands
  • Network: TCP/IP, UDP, FTP, HTTP

Power & Protection

  • Input: 9-32VDC wide range
  • Protection: Surge, reverse polarity, ESD
  • Mounting: DIN rail, industrial enclosure

Cellular IoT Controller Applications

Remote PLC Applications

  • Remote pump stations and water treatment
  • Oil and gas monitoring at remote wellheads
  • Solar farm monitoring and control
  • Generator auto-start systems
  • Agricultural irrigation control
  • Building automation in remote locations

Industrial Controller Applications

  • Manufacturing process control
  • HVAC system monitoring
  • Environmental monitoring stations
  • Equipment health monitoring
  • Predictive maintenance systems
  • Energy management and optimization

Cellular IoT Use Cases

  • Asset tracking and fleet management
  • Distributed sensor networks
  • Smart city infrastructure
  • Utility metering (water, gas, electric)
  • Transportation systems
  • Emergency notification systems

Data Logger Applications

  • Temperature and humidity logging
  • Power consumption monitoring
  • Environmental compliance reporting
  • Quality control data collection
  • Research and development testing
  • Long-term trend analysis

NORVI GSM-AE02-I-G

1. NORVI GSM-AE02-I-G – DATASHEET
2. NORVI GSM-AE02-I-G- USER GUIDE
3. NORVI GSM-AE02-I-G TEST PROGRAM

NORVI GSM-AE02-V-G

1. NORVI GSM-AE02-V-G – DATASHEET
2. NORVI GSM-AE02-V-G – USER GUIDE
3. NORVI GSM-AE02-V-G – TEST PROGRAM

NORVI GSM-AE04-I-G

1. NORVI GSM-AE04-I-G – DATASHEET
2. NORVI GSM-AE04-I-G – USER GUIDE
3. NORVI GSM-AE04-I-G – TEST PROGRAM

NORVI GSM-AE04-V-G

1. NORVI GSM-AE04-V-G – DATASHEET
2. NORVI GSM-AE04-V-G – USER GUIDE
3. NORVI GSM-AE04-V-G – TEST PROGRAM

NORVI GSM-AE07-R-G

1. NORVI GSM-AE07-R-G – DATASHEET
2. NORVI GSM-AE07-R-G – USER GUIDE
3. NORVI GSM-AE07-R-G – TEST PROGRAM

NORVI GSM-AE08-R-G

1. NORVI GSM-AE08-R-G – DATASHEET
2. NORVI GSM-AE08-R-G – USER GUIDE
3. NORVI GSM-AE08-R-G – TEST PROGRAM

NORVI GSM-AE07-T-G

1. NORVI GSM-AE07-T-G – DATASHEET
2. NORVI GSM-AE07-T-G – USER GUIDE
3. NORVI GSM-AE07-T-G – TEST PROGRAM

NORVI GSM-AE08-I-G

1. NORVI GSM-AE08-I-G – Datasheet
2. NORVI GSM-AE08-I-G – USER GUIDE
3. NORVI GSM-AE08-I-G – TEST PROGRAM

NORVI GSM-AE08-T-G

1. NORVI GSM-AE08-T-G – DATASHEET
2. NORVI GSM-AE08-T-G – USER GUIDE
3. NORVI GSM-AE08-T-G – TEST PROGRAM

NORVI GSM-AE08-V-G

1. NORVI GSM-AE08-V-G – Datasheet
2. NORVI GSM-AE08-V-G – USER GUIDE
3. NORVI GSM-AE08-V-G – EST PROGRAM

NORVI GSM-AE02-V-L

1. NORVI GSM-AE02-V-L – DATASHEET
2. NORVI GSM-AE02-V-L – USER GUIDE
3. NORVI GSM-AE02-V-L – TEST PROGRAM

NORVI GSM-AE02-I-L

1. NORVI GSM-AE02-I-L – DATASHEET
2. NORVI GSM-AE02-I-L – USER GUIDE
3. NORVI GSM-AE02-I-L – TEST PROGRAM

NORVI GSM-AE04-I-L

1. NORVI GSM-AE04-I-L – DATASHEET
2. NORVI GSM-AE04-I-L – USER GUIDE
3. NORVI GSM-AE04-I-L – TEST PROGRAM

NORVI GSM-AE08-T-L

1. NORVI GSM-AE08-T-L – DATASHEET
2. NORVI GSM-AE08-T-L – USER GUIDE
3. NORVI GSM-AE08-T-L – TEST PROGRAM

NORVI GSM-AE07-R-L

1. NORVI GSM-AE07-R-L – DATASHEET
2. NORVI GSM-AE07-R-L – USER GUIDE
3. NORVI GSM-AE07-R-L – TEST PROGRAM

NORVI GSM-AE07-T-L

1. NORVI GSM-AE07-T-L – DATASHEET
2. NORVI GSM-AE07-T-L – USER GUIDE
3. NORVI GSM-AE07-T-L – TEST PROGRAM

NORVI GSM-AE08-I-L

1. NORVI GSM-AE08-I-L – DATASHEET
2. NORVI GSM-AE08-I-L – USER GUIDE
3. NORVI GSM-AE08-I-L – TEST PROGRAM

NORVI GSM-AE08-V-L

1. NORVI GSM-AE08-V-L – DATASHEET
2. NORVI GSM-AE08-V-L – USER GUIDE
3. NORVI GSM-AE08-V-L – TEST PROGRAM

NORVI GSM-AE08-R-L

1. NORVI GSM-AE08-R-L – DATASHEET
2. NORVI GSM-AE08-R-L – USER GUIDE
3. NORVI GSM-AE08-R-L – TEST PROGRAM

NORVI GSM-AE04-V-L

1. NORVI GSM-AE04-V-L – DATASHEET
2. NORVI GSM-AE04-V-L – USER GUIDE
3. NORVI GSM-AE04-V-L – TEST PROGRAM

Remote PLC and Wireless PLC Capabilities

The cellular IoT controller functions as a powerful remote plc for industrial automation:

Wireless PLC Programming

  • Arduino IDE for custom logic
  • ESP-IDF for advanced applications
  • MicroPython for rapid development
  • Compatible with standard ESP32 libraries

Remote PLC Control Methods

  • SMS Commands: Text-based control for the gsm sms controller
  • MQTT: Publish/subscribe for real-time control
  • HTTP/HTTPS: RESTful API access
  • Modbus: Industrial protocol support
  • Mobile Apps: Custom app development

Industrial Automation Features

  • Timer and counter functions
  • Conditional logic and triggers
  • Multi-step sequences
  • Alarm and notification system
  • Schedule-based automation

Why Choose This Cellular IoT Controller

True Cellular IoT Controller

Unlike WiFi-only controllers, this cellular IoT controller provides cellular connectivity as the primary feature. Work anywhere with mobile coverage without depending on local internet.

Professional Industrial Controller

Built for industrial environments with proper I/O protection, wide voltage input, DIN rail mounting, and industrial-grade components.

Flexible Remote PLC

Program as a remote plc using familiar tools. No proprietary software or expensive licenses. Full control over your automation logic.

Reliable 4G LTE Controller

The 4g lte controller ensures connectivity with automatic fallback to 3G/2G. Multiple connectivity paths prevent downtime.

Complete IoT Solution

Functions as an iot gateway, wireless plc, data logger, and gsm sms controller – all in one cellular IoT controller device.

ESP32 Powered

Built on the proven ESP32 platform with extensive community support, thousands of libraries, and flexible programming options.

Cost-Effective

Get professional industrial controller features at a fraction of traditional PLC costs. No monthly cloud fees required.

Global Compatibility

The 4g lte controller works worldwide with support for all major cellular bands and network protocols.

Frequently Asked Questions

What is a cellular IoT controller?

An industrial automation device that uses cellular networks (4G LTE, 3G, 2G) to connect to the internet and cloud platforms. Unlike WiFi controllers, the cellular IoT controller works anywhere with mobile coverage, making it ideal for remote monitoring and control applications.

How does the cellular IoT controller connect to networks?

Built-in Quectel EC21-G modem that supports 4G LTE, 3G, and 2G networks. Simply insert a SIM card, and it automatically connects to the strongest available cellular network in your area.

Can I use this as a remote PLC?

Yes, this cellular IoT controller functions as a remote plc. You can program it using Arduino IDE or ESP-IDF to create custom automation logic, just like a traditional PLC but with cellular connectivity for remote access.

What is the difference between this and a wireless PLC?

This industrial controller is a type of wireless plc that uses cellular networks (4G/3G/2G) instead of WiFi. Built to works anywhere with mobile coverage, making it superior for remote locations without internet access.

Does the data logger work without internet?

Yes, the data logger stores readings locally to SD card (Up to 32GB) or internal flash memory. Data is saved even during network outages and can be synchronized to cloud platforms when cellular connectivity is restored.

How do I control the GSM SMS controller features?

Send SMS text commands to the gsm sms controller phone number. For example, “RELAY1 ON” turns on relay 1. You can also read sensor values via SMS like “READ TEMP1” to get temperature readings from your cellular IoT controller.

Can this work as an IoT gateway?

Yes, it functions as an IoT gateway. And can collect data from multiple sensors or devices and transmit to cloud platforms via 4G LTE, acting as a bridge between field equipment and IoT platforms.

What makes this an industrial controller?

It features optically isolated inputs, protected relay outputs, wide voltage input (9-32VDC), surge protection, DIN rail mounting, and operates in harsh industrial temperature ranges (– -10… +85° C (14…185 °F)).

Which countries does the 4G LTE controller work in?

Works globally. The EC21-G modem supports worldwide LTE bands including B1/B3/B5/B7/B8/B20/B28 and is compatible with cellular networks in North America, Europe, Asia, Africa, and Australia.

Is the cellular IoT controller compatible with ESP32 code?

Yes, since it is built on the ESP32 platform, it’s fully compatible with Arduino IDE, ESP-IDF, and thousands of existing ESP32 libraries and code examples.