Introduction: Which IoT Controller Fits Your Needs?
When it comes to building an IoT solution, the choice of controller can make or break your project. NORVI controllers and ESP32 DevKit v1 both use the powerful ESP32 chip, but they are designed for very different purposes.
If your project involves industrial automation, factory monitoring, or professional IoT deployment, NORVI controllers are built to handle the job. With features like RS-485 Modbus, Ethernet connectivity, high-precision analog inputs, DIN rail mounting, built-in displays, and expansion modules, these controllers are ready for real-world industrial environments right out of the box.
On the other hand, the ESP32 DevKit v1 is perfect for learning, prototyping, and small-scale projects. It’s flexible, affordable, and widely supported by the Arduino and ESP-IDF ecosystems, making it a favorite for hobbyists and developers testing new ideas – but it lacks the industrial features that NORVI provides.
Use Focus:
- Professional Industrial IoT Applications: NORVI controllers are built for long-term industrial performance with features like RS-485 Modbus, Ethernet, high-precision ADCs, and DIN rail mounting.
- Prototyping and Learning: ESP32 DevKit v1 is ideal for budget-conscious developers, hobbyists, or proof-of-concept projects.
In this guide, we’ll break down the key differences, advantages, and ideal use cases for each, helping you choose the right controller for your IoT project.
Core Hardware and Connectivity Comparison
| Feature | NORVI Controllers | ESP32 DevKit v1 |
|---|---|---|
Processor & SoC |
ESP32-WROOM32, 32-bit dual-core |
ESP32-WROOM32, 32-bit dual-core |
Flash Memory |
4MB |
4MB |
SRAM |
520KB |
520KB |
Connectivity |
WiFi 802.11 b/g/n, Bluetooth 4.2 BLE, RS-485 Modbus, Ethernet, optional LoRa/NB-IoT |
WiFi 802.11 b/g/n, Bluetooth 4.2 BLE |
Industrial I/O |
24V digital input, relay outputs up to 5A, transistor outputs, isolated I/O |
3.3V logic, limited digital I/O, no protection |
Analog Inputs |
12-bit / 16-bit ADC, 0–10V & 4–20mA support |
Basic ESP32 ADC, 12-bit |
Mounting |
DIN rail, panel-ready |
Requires external solution |
Display & Input |
0.96-inch OLED/TFT + front panel buttons |
None |
RTC & MicroSD |
Built-in battery-backed RTC, microSD storage |
None |
Expansion Modules |
LoRa, NB-IoT, MAX31856, HX-711 |
Requires external wiring |
OTA Updates |
Supported (IIOT with antennas) |
Not built-in |
Development Support |
Arduino IDE, ESP-IDF, industrial protocol libraries, hardware-specific examples, documentation & support |
Arduino IDE, ESP-IDF, MicroPython |
Best For |
Industrial IoT, factory automation, SCADA, professional installations |
Learning, prototyping, hobby projects |
Expansion Modules: Industrial Capabilities
| Module | NORVI Support | ESP32 DevKit v1 |
|---|---|---|
LoRa (REYAX RYLR 896) |
(external wiring needed) | |
NB-IoT (BC95) |
(external wiring needed) | |
MAX31856 Temp Sensor | ||
HX-711 Load Cell |
Cost & Development Time
| Aspect | NORVI Controllers | ESP32 DevKit v1 |
|---|---|---|
RS-485 / Ethernet |
Built-in |
$15–40 modules required |
Industrial I/O Protection |
Built-in |
$50–100 external circuits |
Mounting Solutions |
DIN rail ready |
$20–50 external enclosure |
Development Time |
Reduced integration, pre-tested hardware, support included |
Longer, requires assembly of shields/modules |
Quick Decision Table: Which Controller Should You Choose?
| Requirement / Use Case | NORVI Controller | ESP32 DevKit v1 |
|---|---|---|
Industrial voltage (24V) | ||
RS-485 Modbus / Ethernet | ||
High-precision analog inputs | ||
Professional mounting (DIN rail) | ||
Built-in display & controls | ||
Expansion modules & OTA support | ||
Learning / prototyping | ||
Budget-sensitive projects |
Conclusion: Making the Right Choice for Industrial IoT
- NORVI Controllers: Ideal for industrial environments, professional installations, and projects requiring reliable connectivity and precise I/O. Integrated industrial features reduce total project cost and development time.
- ESP32 DevKit v1: Perfect for prototyping, learning, and small-scale IoT applications without industrial requirements.
Key Takeaways:
- Industrial requirements → NORVI Controllers
- Budget or prototyping → ESP32 DevKit v1
- Professional installation → NORVI
- Learning & experimentation → ESP32 DevKit v1
- Total cost for industrial use → NORVI often more cost-effective
Frequently Asked Questions
Yes, your code is mostly compatible, with minor adjustments for industrial I/O.
Yes, especially NORVI IIOT models with external antennas.
IP20, suitable for indoor industrial environments.