Modular Industrial IoT Controller
NORVI X | ESP32-S3 Based
NORVI X is a modular industrial IoT controller that bridges legacy equipment with modern cloud systems. In addition, it is built for machine builders, systems integrators, and OEM teams that need industrial connectivity, scalable I/O, open development tools, and a clear path from field devices to cloud platforms.
Built Different.
Performs Better.
Everything a machine builder needs: modular I/O, native cloud connectivity, and an open-source development environment, all in a single DIN-rail controller.
ESP32-S3 Dual-Core @ 160 MHz
Dual-core 32-bit processor with 520 KB SRAM and 16 MB Flash. In addition, native Wi-Fi and Bluetooth 5.0 BLE are built in, with optional 4G LTE via SIMCOM or Quectel modem modules.
Up to 200 I/O Points
As a result, you can scale from minimal I/O to as many as 200 digital, analog, relay, and transistor I/O points without redesigning the panel.
Built-in RS-485 & Ethernet
Therefore, native RS-485 Modbus RTU and Ethernet Modbus TCP can integrate with legacy PLCs, VFDs, energy meters, and SCADA systems without additional gateway hardware.
TFT Touchscreen Display
In addition, the integrated TFT SPI display with capacitive touch supports on-device configuration and real-time monitoring. As a result, no external HMI is required. You can view process data directly on the controller.
DS3231 Precision RTC
Therefore, the hardware real-time clock maintains accurate timestamps across power outages, which supports event logging, scheduled tasks, and time-stamped SCADA data.
Industrial-Grade Security
In addition, TLS 1.2 encryption, certificate-based authentication, firmware signature verification, and optical isolation support industrial deployments. The applicable standards are listed in the compliance section below.
Arduino IDE & ESP-IDF
For example, program with familiar tools such as Arduino IDE, ESP-IDF, or MicroPython. In addition, you can use open-source libraries and push OTA firmware updates without proprietary programming-license fees.
Cloud-Native Integration
For example, native MQTT and HTTP support can connect directly to AWS IoT, Azure IoT Hub, Google Cloud, and custom brokers. As a result, many deployments can send data straight from the controller without a separate IoT gateway.
DIN-Rail TH35 Mounting
Finally, the standard TH35 DIN-rail mount fits common industrial control panels. In addition, screw-terminal connections support the 24 V DC supply, while the listed ESD protection is up to 4 kV contact / 8 kV air discharge.
Choose Your Processing Core
Three variants use the same ESP32-S3 platform. In addition, all three include Wi-Fi, Bluetooth, Ethernet, RS-485, and a TFT touchscreen display as standard.
NORVI X1
Wi-Fi · Ethernet · Bluetooth
- ESP32-S3-WROOM-1U-N16R2 dual-core
- Wi-Fi 802.11 b/g/n + Bluetooth 5.0 BLE
- Ethernet RJ45 built-in
- RS-485 Modbus RTU built-in
- TFT SPI touchscreen display
- DS3231 hardware RTC
- Supports up to 200 I/O points
NORVI X2
Wi-Fi · Ethernet · 2G / 4G LTE
- ESP32-S3-WROOM-1U-N16R2 dual-core
- SIMCOM A7672, 2G / 4G IoT modem
- Wi-Fi 802.11 b/g/n + Bluetooth 5.0 BLE
- Ethernet RJ45 + RS-485 built-in
- TFT SPI touchscreen display
- DS3231 hardware RTC
- Supports up to 200 I/O points
NORVI X3
Wi-Fi · Ethernet · High-Speed 4G
- ESP32-S3-WROOM-1U-N16R2 dual-core
- Quectel EC25, high-speed 4G LTE
- Wi-Fi 802.11 b/g/n + Bluetooth 5.0 BLE
- Ethernet RJ45 + RS-485 built-in
- TFT SPI touchscreen display
- DS3231 hardware RTC
- Supports up to 200 I/O points
Build Exactly What You Need
14+ expansion modules across digital, analog, relay, transistor, and sensor categories. In addition, you can change supported modules without redesigning the panel wiring layout.
4× Digital Input (Fast)
For example, these high-speed optically isolated digital inputs can be used for pulse counting, encoders, and proximity sensors.
8× Digital Input
8-channel optically isolated digital input for switches, push-buttons, and discrete sensor monitoring.
16× Digital Input
High-density 16-channel isolated input for large-scale machine monitoring and fault detection systems.
4× Relay Output
4-channel relay for switching AC/DC loads such as HVAC, motor starters, lighting, and contactor coils.
8× Relay Output
In addition, the 8-channel relay output supports higher-density load switching in building management and factory panels.
4× Transistor Output (Fast)
4 fast-switching NPN outputs for solenoids, steppers, indicators, and PLC-compatible digital control.
8× Transistor Output
8-channel NPN transistor output for drives, actuators, and PLC-compatible digital control loops.
16× Transistor Output
Maximum-density 16-channel NPN transistor output for high-channel count systems with compact footprint.
4× Analog Input 0–10V
4-channel 0–10V input for sensors, transducers, and HMI signal loops with high-resolution ADC.
4× Analog Input 4–20mA
For example, the industry-standard current-loop input suits pressure, flow, and temperature transmitters while improving resilience to cable EMI.
4× Analog Output 0–10V / 4–20mA
Dual-mode analog output for VFDs, proportional valves, and actuators, with both 0–10V and 4–20mA per channel.
4× RTD Sensor Input
For example, the 4-channel Pt100/Pt1000 RTD interface supports precision temperature measurement in process and HVAC applications.
GPIO / UART / RS-232 Board
GPIO connection board with RS-485 ×2, RS-232 ×2, and UART ×4 for legacy serial device integration.
4× Thermocouple Input
4-channel thermocouple interface for high-temperature measurement in furnaces, ovens, and process loops.
8 x AC Inputs
8 × Optically isolated 230 V AC digital inputs | One common terminal for all eight inputs
NORVI X vs Traditional PLCs
A direct comparison of what sets the NORVI X apart from conventional industrial controllers.
| Feature | NORVI X | Traditional PLC |
|---|---|---|
| Initial Cost | ✓ Lower: pay only for I/O you need | High: full system cost upfront |
| Programming Environment | ✓ Arduino IDE, free & open-source | Proprietary software with licensing fees |
| IoT / Cloud Connectivity | ✓ Built-in LTE, Wi-Fi, Ethernet, MQTT | Expensive communications modules required |
| I/O Expansion | ✓ Hot-swappable I²C modules, up to 200 pts | Proprietary expansion chassis only |
| Firmware Updates | ✓ OTA wireless, no site visits needed | Manual on-site reprogramming |
| Developer Community | ✓ Massive Arduino & ESP32 ecosystem | Vendor-specific support only |
| Customisation | ✓ Fully open, pre-programmed or custom | Limited to vendor feature set |
| Display / HMI | ✓ Built-in TFT touchscreen display | Separate HMI panel required |
Built for Industrial Demands
Every specification chosen for long-term reliability in demanding factory environments.
Processor
Connectivity
Power & Environment
Standards & Mounting
Where NORVI X Works
Machine Control & Automation
Precise automation with scalable I/O for any production line, replacing traditional PLCs at lower cost.
Remote Monitoring & SCADA
For example, monitor sensors and actuators remotely over LTE or Wi-Fi while streaming data to a cloud platform or SCADA system.
IoT Gateways & Data Acquisition
As a result, native MQTT and Modbus support can bridge legacy equipment to cloud platforms without additional gateway hardware.
Building & Energy Management
In addition, relay outputs can control HVAC, lighting, and energy loads while analog inputs track process or consumption signals.
OEM & Custom Products
Therefore, flexible I/O and connectivity can support tailored OEM platforms without requiring a custom PCB for every configuration.
Engineering Information You Can Verify
First, this page summarizes the NORVI X platform for product selection. Therefore, for wiring, electrical limits, pin assignments, modem variants, environmental limits, and compliance decisions, verify the exact CPU or expansion-module datasheet used in your project.
In addition, technical information on this page is based on NORVI product documentation and linked datasheets. Page content updated 14 August 2026. Finally, for application-specific confirmation, certification records, or a configuration review, contact NORVI Technical Support before final deployment.
Find Documentation by Product
Choose the exact CPU or expansion module you are using. Each product keeps its datasheet, quick-start guide, GitHub code, and related resources together in one place.
Ready to Modernize
Your Control System?
From a single relay output to a 200-point I/O platform. Therefore, NORVI X scales with your application. Worldwide shipping from Colombo, Sri Lanka.
Common Questions
Can't find what you're looking for? Our team is available for a free technical consultation.
The NORVI X is a DIN-rail mountable modular industrial IoT controller built on the ESP32-S3 processor. In addition, it combines Wi-Fi, Bluetooth, Ethernet, and optional 4G LTE with an I/O expansion system supporting up to 200 I/O points. Therefore, it is designed for machine builders, systems integrators, and OEMs that need cloud-connected industrial automation with open development tools.
All three share the same ESP32-S3 core, TFT touchscreen, RS-485, and Ethernet as standard. The X1 ($79) is the Wi-Fi/BT/Ethernet base model. Meanwhile, the X2 ($95) adds a SIMCOM A7672 modem for 2G/4G IoT-grade cellular. By comparison, the X3 ($101) uses a Quectel EC25 modem for higher-speed 4G LTE applications.
The NORVI X supports enough expansion modules to reach 200 I/O points per controller. In addition, modules use I²C address configuration to prevent conflicts. As a result, you can mix digital, analog, relay, transistor, sensor, and communications modules in the same system.
The NORVI X supports RS-485 Modbus RTU, Ethernet Modbus TCP, Wi-Fi, Bluetooth 5.0 BLE, and optional 4G LTE. For cloud integration, it also supports MQTT and HTTP for connections to AWS IoT, Azure IoT Hub, Google Cloud, and custom brokers.
Yes. The NORVI X is fully compatible with the Arduino IDE, ESP-IDF, and MicroPython. In addition, sample code is available on the NORVI GitHub repository. As a result, OTA firmware updates can reduce the need for manual reprogramming visits on deployed systems.
The NORVI X is IEC 61131-2 compliant for functional safety and EN 61010-1 certified for electrical equipment quality. In addition, the listed operating range is −10 °C to +85 °C, with ESD protection up to 4 kV contact / 8 kV air discharge and optical isolation on I/O channels.
CE Certified Under RED Directive 2014/53/EU
NORVI X certification information is presented against the applicable harmonised standards for electrical safety, RF exposure, electromagnetic compatibility, and radio performance.
In addition, the table below separates the standards by test area so engineers can review the compliance scope more quickly.
| Area | Applicable Standard(s) |
|---|---|
| Safety (Electrical) | EN IEC 62368-1:2020 + A11:2020 |
| Outdoor Safety | EN 62368-1 Annex Y |
| RF Exposure / Health | EN IEC 62311:2020 EN 50566:2017 EN 62479:2010 EN 50663:2017 EN 50665 |
| EMC (General/IT) | EN 55032 EN 55024 (or EN 55035) |
| EMC (Wireless) | ETSI EN 301 489-1 V2.2.3 ETSI EN 301 489-17 V3.2.4 |
| Industrial EMC | ETSI EN 303 446-1 V1.2.1 (references EN 61000-6-2, EN 61000-6-4, and IT EMC standards) |
| Radio (Wi-Fi / BLE) | ETSI EN 300 328 V2.2.2 (Full + Spurious only) ETSI EN 300 440 V2.2.1 (Full + Spurious only) ETSI EN 301 893 V2.1.1 (Spurious only) |
| Environmental | Directive 2011/65/EU (RoHS) |
Testing covers the product’s core module and integrated communication interfaces. However, standards applicable to optional communication modules are assessed separately according to the specific module fitted to each product variant. Finally, full test reports and the Declaration of Conformity are available on request through Technical Support.
See the Full
ESP32 PLC Lineup
NORVI X is one of seven ESP32 PLC series, ranging from fixed-I/O panels to a 200-point modular platform. Therefore, compare specifications, connectivity, and pricing across the entire range before you choose.
