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Industrial Grid-Powered Monitoring with NORVI SSN M11-E Series

With the advancement of Industry 4.0, the demand for robust, real-time monitoring systems in industrial environments has surged. The NORVI SSN M11-E series, using the ESP32-WROOM32 System on Chip (SoC), presents a potent solution for such applications. This series offers flexible Input/Output (I/O) configurations, a wide input voltage range, and robust communication capabilities, making it ideal for a broad spectrum of industrial monitoring tasks such as Industrial Grid-Powered Monitoring.

Key Features

M11 E Series

Versatile I/O Configurations

The M11-E series comprises several models, each tailored to specific sensor inputs and communication requirements:

  • EC-M11-EG-C1: 2 Digital Inputs, 2 Analog Inputs (0 – 10V DC), 1 RS-485 Communication
  • EC-M11-EG-C2: 2 Digital Inputs, 1 RS-485 Communication
  • EC-M11-EG-C3: 1 Load Cell Input
  • EC-M11-EG-C4: 1 Thermocouple Input
  • EC-M11-EG-C5: 1 I2C Communication, 1 3.3V/5V DC Output

Robust Communication

The series supports expansions for GSM/LTE, NB-IoT, and LoRa, ensuring reliable data transmission in diverse environments. Additionally, the RS-485 communication port enables stable, long-distance data transfer within industrial settings.

Wide Input Voltage Range

Operating within a 9 – 36V DC range, the M11-E series can be seamlessly integrated into existing industrial power infrastructures, offering flexibility and ease of deployment.

Industrial Design

Encased in an IP67-rated enclosure, the M11-E series is engineered to withstand harsh industrial conditions, including exposure to dust and water. This ensures durability and reliability in demanding environments.

Application Implementation


The initial phase of deploying an industrial monitoring application with the M11-E series involves the setup of GPIO (General-Purpose Input/Output), ADC (Analog-to-Digital Converter), and communication interfaces such as RS-485. 

Proper initialization ensures accurate data acquisition and reliable communication.

Sensor Data Acquisition

The device periodically samples data from connected sensors. 

Digital inputs monitor binary states (e.g., on/off conditions), while analog inputs measure varying signals, providing detailed information about environmental parameters. 

Specific models also support data acquisition from load cells, thermocouples, or I2C sensors, tailored to the application requirements.

Data Processing

Once collected, the data undergoes processing and formatting for transmission. 

This step includes filtering noise, scaling sensor readings, and converting raw data into actionable metrics. 

Proper data processing ensures that the transmitted data is precise and useful for subsequent analysis.

Data Logging

To enhance system reliability, M11-E series devices can log data locally. 

This is crucial for scenarios where communication with the remote server is intermittent. 

Local data storage ensures no data loss and facilitates data transmission once communication is restored.


The processed data is transmitted to a remote server using the chosen communication protocol. 

RS-485 offers a stable wired connection for long-distance data transfer, while GSM/LTE and LoRa provide wireless options suitable for different industrial environments. 

Ensuring robust communication is essential for real-time monitoring and timely decision-making.

Error Handling

Effective error handling is vital in industrial applications. 

The system must detect and manage communication failures, power issues, and sensor malfunctions. 

Implementing retry mechanisms, fallbacks, and alerts ensures the system remains operational and reliable.

Power Management

M11-E series devices are designed to operate efficiently within a wide input voltage range. 

Monitoring the power supply and managing power consumption is critical to prevent downtime and ensure continuous operation in industrial settings.


The NORVI SSN M11-E series offers a comprehensive solution for industrial grid-powered monitoring applications. Its versatile I/O configurations, robust communication capabilities, and industrial design make it suitable for various industrial environments. Leveraging the ESP32-WROOM32 SoC, these devices provide flexibility, performance, and reliability, essential for modern industrial monitoring needs. Whether monitoring sensor values or parameters from external devices, the M11-E series stands out as a dependable choice for industrial IoT applications.



Visit NORVI M11-E Series Page Now; Here

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ESP32 PLC PWM Outputs for Motor Speed Control : A Complete guide

ESP32 PLC PWM Outputs

In this article, we explore how to use ESP32 PLC PWM Outputs to regulate motor speeds efficiently using NORVI IIOT Device, equipped with an ESP32-WROOM32 module.

With its built-in features like OLED display, digital and analog inputs, relay outputs, and DIN-rail mount, NORVI IIOT proves to be a versatile platform for motor control applications.

Understanding PWM

ESP32 PWM Outputs

PWM stands for Pulse Width Modulation. It is a modulation technique used to encode a message into a pulsing signal. 

In PWM, the digital signal is turned on and off at a certain frequency with varying pulse widths, or duty cycles. 

The duty cycle refers to the percentage of time the signal is on (high) compared to the total period of the signal.

PWM is commonly used in various applications, 

  • Motor control
  • Power regulation
  • Communication systems
  • LED dimming. 

As an example, In motor control applications, PWM is used to control the speed of motors by varying the average voltage or current supplied to the motor. By adjusting the duty cycle of the PWM signal, the effective power delivered to the motor can be controlled, thus regulating its speed.

PWM offers several advantages, 

  • Efficiency 
  • Simplicity
  • Flexibility (It allows for precise control over the average power delivered to a load, enabling smooth and accurate adjustments in motor speeds or other controlled systems.) 
  • Simple and cost-effective implementation

ESP32 PWM Outputs

ESP32 PWM Outputs

The ESP32 microcontroller, which features a dual-core processor and Wi-Fi/Bluetooth connectivity, offers flexible PWM (Pulse Width Modulation) capabilities suitable for various applications.

The ESP32 provides multiple PWM channels, allowing simultaneous control of multiple devices or components. Here’s an overview of the ESP32 PLC PWM Outputs:

  • Number of PWM Channels: It provides up to 16 PWM channels, which can be distributed across different GPIO (General Purpose Input/Output) pins.
  • PWM Frequency: The PWM frequency is configurable, allowing you to adjust it based on your application requirements. The frequency range typically spans from a few Hz to several kHz.
  • Resolution: The PWM resolution refers to the number of bits representing the duty cycle. The ESP32 supports adjustable PWM resolution, commonly ranging from 1 to 16 bits—higher resolution results in smoother and more precise control over the output signal.
  • Duty Cycle Control: The duty cycle of each PWM channel can be adjusted independently. The duty cycle represents the ratio of the signal’s on-time to its total period and is often expressed as a percentage.
  • Programming Interface: You can control the PWM outputs on the ESP32 using the ESP-IDF (Espressif IoT Development Framework), Arduino IDE with the ESP32 board package, or other compatible development environments. Libraries and APIs provided by Espressif Systems facilitate easy configuration and control of PWM channels.

Utilizing NORVI IIOT for Motor Speed Control

In the context of motor control, PWM is used to regulate the power supplied to the motor by controlling the average voltage and current through varying the duty cycle of the signal. A higher duty cycle translates to a higher average voltage and vice versa, thus controlling the speed of the motor. 

Let’s look into the process of how ESP32 PLC PWM Outputs are used for controlling the Motor speeds.

Hardware Setup:

    • Connect the motor to the PWM output pins (transistor outputs) of the NORVI IIOT device.
    • Ensure proper power supply and grounding for both the NORVI IIOT and the motor.
    • Utilize the built-in 0.96 OLED display for monitoring and feedback purposes. (If not NORVI ESP32 HMI can be connected for monitoring and feedback purposes)

Software Implementation:

    • Initialize the PWM module on the NORVI IIOT using the provided libraries or SDK.
    • Configure the PWM output pins for motor control.
    • Implement a control algorithm to adjust the duty cycle based on desired speed inputs.
    • Utilize the digital and analog inputs for receiving speed commands or feedback signals.
    • Implement safety features such as overcurrent protection and emergency stop functionalities.

User Interface and Interaction:

      • Utilize the built-in button on the front panel for manual control or mode selection.
      • Develop a user-friendly interface on the OLED display (or ESP32 HMI) for displaying motor speed, status, and other relevant information.
      • Enable remote monitoring and control capabilities through network connectivity options supported by NORVI IIOT.

Expansion and Integration:

    • Take advantage of the expansion port to add additional functionalities or modules for enhanced motor control capabilities.
    • Integrate with other industrial automation systems or IoT platforms for seamless data exchange and interoperability.

Benefits of Using NORVI IIOT for Motor Speed Control:

  • Compact and robust design suitable for industrial environments.
  • Versatile inputs and outputs for interfacing with various sensors, actuators, and peripherals.
  • Real-time monitoring and control capabilities.
  • Scalability and expandability for future requirements.
  • Cost-effective solution compared to traditional PLC-based systems.


By using the ESP32 PWM outputs of the NORVI IIOT device, associated with its advanced features and capabilities, system integrators, engineers and developers can effectively regulate motor speeds in industrial applications. Whether it’s for controlling conveyor belts, pumps, fans, or other motor-driven equipment, NORVI IIOT provides a reliable platform for achieving precise and efficient motor control, ultimately contributing to improved productivity and operational performance in industrial settings.

If you have any questions, Please reach our technical team at [email protected]

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Adding Touchscreen Functionality to ESP32-S3 HMI to enhance User Experience

Adding Touchscreen Functionality to ESP32-S3 HMI
Adding Touchscreen Functionality to ESP32-S3 HMI

ESP32 NORVI HMI is a powerful HMI resistive touch screen with an 800*480 resolution LCD display. It uses the ESP32-S3-WROOM-1-N4R8 module as the main control processor, with a dual-core 32-bit microprocessor, integrated WiFi and Bluetooth wireless functions, a main frequency of up to 240MHz, providing powerful performance and versatile applications, suitable for IoT application devices and other scenes.

The module includes a 5.0-inch LCD display and a driver board. The display screen uses resistive touch technology. It supports a development environment such as Arduino IDE and is compatible with the LVGL graphics library. This enables developers to customize their UI interfaces and create interesting projects quickly and easily, greatly shortening the development cycle.

A 5-inch resistive touch display is a touchscreen technology with a layered structure, comprising a flexible top layer and a rigid bottom layer separated by insulating dots. When pressure is applied, these layers make contact at specific points, and touch input is detected by measuring changes in voltage. Some common features of the touch panel are,

  • Accuracy and Pressure Sensitivity: Resistive touchscreens provide accurate touch input by detecting the precise point of contact.
  • Cost-Effectiveness: Resistive touch panels are cost-effective to produce, making them a popular choice for budget-friendly displays.
  • Versatility and Compatibility: Compatible with various input methods, resistive touchscreens can be operated with any object that applies pressure.
  • Calibration Requirements: Periodic calibration may be necessary to maintain accurate touch response.

To add the touch functionality to an ESP32-S3 HMI, it will need to use a combination of the ESP32-S3 microcontroller, a suitable Touch library, and the LVGL  graphics library. Below are the general steps to add these functionalities:


  1. Set Up Development Environment:

Install Arduino IDE on PC.

Integrate ESP32 board support in Arduino IDE.

Install required libraries for ESP32, touch, and LVGL. 

The Touch library may need to use a library that is compatible with the specific 5-inch resistive touch.


  1. Include Libraries in Arduino Sketch:

Include the required libraries at the beginning of the Arduino sketch:


#include <XPT2046_Touchscreen.h>

#include <lvgl.h>

  1. Initialize Touch parameters:
  • Initialize the set points

The touch screen set points are configured through an example code provided by a touch library. By executing the code and interacting with the four sides of the display, the corresponding values are displayed in the serial monitor. This process enables the determination of touchscreen set points based on the user’s input and observation of the serial output.


#define TOUCH_MAP_X1 270

 #define TOUCH_MAP_X2 3800

 #define TOUCH_MAP_Y1 3600

 #define TOUCH_MAP_Y2 330


  • Variables touch_last_x and touch_last_y store the last touched coordinates.


int touch_last_x = 0, touch_last_y = 0;

#if defined(TOUCH_XPT2046)

XPT2046_Touchscreen ts(TOUCH_XPT2046_CS, TOUCH_XPT2046_INT);


  • Touch Initialization Function.


void touch_init() {

#if defined(TOUCH_XPT2046)





  • Check for Touch Signal.


bool touch_has_signal() {

#if defined(TOUCH_XPT2046)

  return ts.tirqTouched();


  • Check if Touched


bool touch_touched() {

#if defined(TOUCH_XPT2046)

  if (ts.touched())  {

    TS_Point p = ts.getPoint();


  • Check if Touch Released.


bool touch_released(){

if defined(TOUCH_XPT2046)

  return true;


This touch code provides an abstraction layer for the touch library, allowing the user to easily understand. The code includes initialization, event handling, and functions to check if the screen is touched or released. 

If buttonXMin, buttonXMax, buttonYMin, and buttonYMax represent the borders or boundaries of the region on the touch screen corresponding to the position of the button. let’s see how to configure a button, and set its action. 


#include <XPT2046_Touchscreen.h>

#define TOUCH_CS 10 // Example pin for touch CS

XPT2046_Touchscreen ts(TOUCH_CS);

#define BUTTON_PIN 7 // Example pin for the button

void setup() {





void loop() {

  // Read touch input

  TS_Point p = ts.getPoint();


  // Check if the touch screen is touched

  if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {

    // Process touch input (e.g., map coordinates, perform actions)

    int mappedX = map(p.x, TS_MINX, TS_MAXX, 0, 800); // Adjust based on display size

    int mappedY = map(p.y, TS_MINY, TS_MAXY, 0, 480); // Adjust based on display size

    Serial.print(“Touched at X: “);


    Serial.print(“, Y: “);



    // Check if the touch is in the region of the button

    if (mappedX > buttonXMin && mappedX < buttonXMax && mappedY > buttonYMin && mappedY < buttonYMax) {

      // Button is pressed, perform action

      Serial.println(“Button Pressed!”);

      // Add button action here




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Unleashing the Power of Connectivity: ESP32 Devices with LTE Technology

ESP32 Devices with LTE Technology

Discover a new realm of possibilities with ‘Unleashing the Power of Connectivity: ESP32 Devices with LTE Technology’ through this article. Dive into the seamless integration of ESP32 devices and LTE technology, unlocking a world of fast, reliable, and versatile connectivity. This meta description invites you to explore the cutting-edge synergy between ESP32 and LTE, empowering your projects with enhanced communication capabilities, wider reach, and unprecedented efficiency. Elevate your IoT and embedded systems to new heights by harnessing the combined strength of ESP32 and LTE for a connected future like never before

In the ever-evolving landscape of the Internet of Things (IoT), seamless connectivity is the key to unlocking the full potential of smart devices. The ESP32, a versatile and powerful microcontroller, has been a game-changer in the world of IoT development. Now, with the integration of Long-Term Evolution (LTE) technology, ESP32 devices are taking a giant leap forward, enabling faster and more reliable wireless communication. In this article, we’ll explore the benefits and applications of ESP32 devices with LTE technology.

The ESP32, developed by Espressif Systems, has gained widespread popularity for its dual-core processing capabilities, integrated Wi-Fi, and Bluetooth functionalities. It has become the microcontroller of choice for a wide range of IoT applications, from home automation to industrial monitoring.

Introduction of LTE Technology

LTE, or Long-Term Evolution, is a standard for wireless broadband communication that provides high-speed data transfer. With LTE, ESP32 devices can now tap into cellular networks, offering a more robust and widely accessible communication method compared to traditional Wi-Fi or Bluetooth connections.

Key Advantages of ESP32 Devices with LTE Technology

Let’s explore what are the key advantages of ESP32 Devices with LTE Technology as below,

Extended Range and Coverage:

  • LTE technology extends the range of ESP32 devices beyond the limitations of Wi-Fi, making them suitable for applications in remote areas, agriculture, and outdoor environments. This ensures reliable connectivity even in areas with limited or no Wi-Fi coverage.

Enhanced Data Transfer Speeds:

  • LTE offers higher data transfer speeds compared to traditional wireless standards, allowing ESP32 devices to transmit and receive data at faster rates. This is particularly crucial for applications that require real-time data processing, such as video streaming or remote monitoring.

Improved Reliability:

  • LTE networks are known for their reliability and stability. ESP32 devices with LTE can maintain a consistent connection, reducing the chances of signal interruptions and enhancing the overall reliability of IoT applications.

Global Connectivity:

  • Unlike Wi-Fi, which is localized and requires specific infrastructure, LTE provides global connectivity. ESP32 devices equipped with LTE can communicate across borders, making them ideal for applications that demand international reach, such as asset tracking and logistics.

Applications of ESP32 with LTE

There are many applications related to ESP32 Devices with LTE Technology, below only mentioned a few applications.

Smart Agriculture:

  • ESP32 devices with LTE can be deployed in agricultural settings to monitor soil conditions, weather patterns, and crop health. The extended range and reliability of LTE ensure seamless connectivity across large farmlands.

Industrial IoT (IIoT):

  • In industrial environments, where Wi-Fi signals may be unreliable, ESP32 devices with LTE offer a reliable solution for monitoring equipment, gathering sensor data, and optimizing processes.

Asset Tracking:

  • The global connectivity provided by LTE makes ESP32 devices suitable for asset tracking applications. Whether tracking vehicles, containers, or valuable assets, LTE ensures constant communication and accurate location data.

Smart Cities:

  • ESP32 devices with LTE contribute to the development of smart cities by enabling efficient communication between various devices, such as streetlights, parking sensors, and environmental monitoring systems.


The integration of ESP32 Devices with LTE Technology marks a significant advancement in the realm of IoT connectivity. Developers and businesses can leverage the extended range, improved data transfer speeds, and global connectivity to create innovative and reliable solutions for a variety of applications. As ESP32 Devices with LTE Technology become more prevalent, the landscape of IoT will continue to evolve, opening up new possibilities for a connected and intelligent future.


ESP32 with LTE technology and NORVI Controllers are available to buy.

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Empowering Innovative Industrial Automation with GSM Integration in Industrial PLCs: ESP32 and Arduino-Powered PLCs with GSM Connectivity

Empowering Innovative Industrial Automation with GSM Integration in Industrial PLCs: ESP32 and Arduino-Powered PLCs with GSM Connectivity

In the realm of industrial automation, the integration of advanced technologies has become paramount to enhance efficiency, connectivity, and real-time monitoring. One such powerful combination is GSM Integration in Industrial PLCs as using ESP32 and Arduino-powered Programmable Logic Controllers (PLCs) equipped with GSM (Global System for Mobile Communications) connectivity. This article delves into the capabilities of ESP32 and Arduino in the context of PLCs, highlighting the advantages of GSM integration for seamless communication in industrial applications, especially for the NORVI GSM series.

ESP32 and Arduino: A Dynamic Duo

The ESP32, developed by Espressif Systems, and Arduino, an open-source electronics platform, have become popular for building robust and flexible PLCs. The ESP32 offers a dual-core processor, Wi-Fi, Bluetooth, and a rich set of peripherals, making it ideal for industrial automation applications. Arduino, with its easy-to-use development environment, extensive community support, and a wide array of compatible shields, complements the ESP32 to create a powerful combination for PLCs.

Key Features of ESP32 and Arduino for PLCs

  • Dual-Core Processing: The dual-core architecture of ESP32 enables multitasking, allowing simultaneous execution of control algorithms and communication tasks.
  • Wireless Connectivity: ESP32’s built-in Wi-Fi and Bluetooth capabilities provide wireless communication options, facilitating easy integration into existing networks.
  • Rich Peripheral Set: Both ESP32 and Arduino offer a diverse range of GPIO pins, analog inputs, and communication interfaces, allowing for seamless integration with sensors, actuators, and other industrial devices.
  • Open-Source Ecosystem: Arduino’s open-source nature fosters a collaborative community, resulting in a vast library of pre-built functions and shields that can be readily employed in PLC projects.

GSM Integration in Industrial PLCs

GSM technology plays a pivotal role in enabling remote communication for industrial systems. By integrating GSM modules with ESP32 and Arduino-powered PLCs, several benefits are realized. Refer to the following benefits of GSM Integration in Industrial PLCs.

  • Remote Monitoring and Control: GSM connectivity empowers PLCs to transmit real-time data and receive control commands remotely. This capability is crucial for industries where on-site presence is limited or not feasible.
  • Data Logging and Analysis: PLCs equipped with GSM can log data and send it to a centralized server for analysis. This facilitates predictive maintenance, process optimization, and data-driven decision-making.
  • Alerts and Notifications: Instantaneous communication through GSM enables prompt alerting in case of critical events or system failures. This proactive approach minimizes downtime and enhances overall system reliability.
  • Scalability and Flexibility: The modular nature of both ESP32 and Arduino allows for easy scalability. Additional GSM modules can be integrated to accommodate growing communication requirements, making the system highly flexible.

Case Study: Industrial Application of ESP32 and Arduino PLC with GSM

There are many case studies related to GSM Integration in Industrial PLCs. Let’s consider a practical example of an industrial water treatment plant that employs an ESP32 and Arduino-powered PLC with GSM connectivity.

  • Sensor Integration: The PLC interfaces with sensors measuring water quality, flow rates, and tank levels, utilizing the GPIO and analog inputs.
  • Control Algorithms: The dual-core processing capability of ESP32 allows for the implementation of sophisticated control algorithms to regulate chemical dosing, pump speeds, and valve positions based on real-time sensor data.
  • GSM Communication: The PLC is equipped with a GSM module to transmit data on water quality, system status, and operational parameters to a centralized control center.
  • Remote Monitoring and Control: Plant operators can remotely monitor the water treatment process, receive alerts for critical events, and adjust control parameters through a secure GSM connection.
  • Data Logging and Analysis: Historical data is logged and transmitted to a cloud-based server for analysis. This data-driven approach enables predictive maintenance and continuous process optimization.


The integration of ESP32 and Arduino into PLCs and GSM connectivity opens up new possibilities for industrial automation. This dynamic duo provides a cost-effective, scalable, and flexible solution for diverse applications, ranging from manufacturing to water treatment. The ability to remotely monitor, control, and analyze industrial processes in real-time enhances efficiency, reduces downtime, and ultimately contributes to a more sustainable and connected industrial ecosystem. As technology continues to advance, the synergy between ESP32, Arduino, and GSM holds immense potential for shaping the future of industrial automation. Therefore, GSM Integration in Industrial PLCs are creates the innovative industrial automation projects even better.



NORVI has ESP32-based and Arduino-powered Devices which has GSM connectivity which comes as the NORVI GSM series. Visit the product page Now:


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How to connect 4 – 20mA Industrial Sensors with ESP32 PLC: A Comprehensive Guide

How to connect 4 - 20mA Industrial Sensors with ESP32 PLC: A Comprehensive Guide

Connecting 4-20mA industrial sensors to an ESP32 PLC involves several steps, including understanding the sensor, configuring the ESP32, and handling the analog signal conversion. Here’s a comprehensive guide to help you:

Connect 4 - 20mA Industrial Sensors with ESP32 PLC

Connecting 4-20mA industrial sensors with an ESP32 PLC offers several advantages in industrial applications:

Compatibility: 4-20mA sensors are widely used in industrial settings due to their resilience against electrical interference and ability to transmit data over long distances without significant loss. ESP32 PLCs with analog input capabilities can easily interface with these sensors, enabling seamless integration into existing industrial systems.

Data Acquisition: ESP32 microcontrollers have analog-to-digital converters (ADCs) that can accurately read analog signals. By connecting 4-20mA sensors to the ESP32, you can efficiently capture and process sensor data, allowing for real-time monitoring and control of industrial processes.

Cost-effectiveness: ESP32 microcontrollers offer a cost-effective solution for acquiring sensor data. They provide flexibility, programmability, and connectivity options, making them suitable for various industrial automation and monitoring tasks at a relatively low cost compared to specialized PLCs.

Scalability and Customization: The ESP32 platform offers flexibility for customization and scalability. It allows developers to create tailored solutions by writing custom code to interpret sensor data, implement control algorithms, and interface with other devices or networks, meeting specific industrial requirements.

Internet Connectivity: ESP32 boards feature built-in Wi-Fi and Bluetooth capabilities, enabling connectivity to local networks or the internet. This connectivity facilitates remote monitoring, data logging, and control, offering enhanced accessibility and convenience in managing industrial processes.

Compact Size and Efficiency: ESP32 devices come in compact sizes, offering space-saving advantages in industrial environments. Despite their small form factor, they boast sufficient processing power and energy efficiency, suitable for continuous operation in industrial applications.

Understanding 4-20mA Industrial Sensors

Know Your Sensor: Identify the type of sensor you’re dealing with (temperature, pressure, etc.), its specifications, and the range of values it can output (typically 4-20mA).

Power Supply: 4-20mA sensors often require a power supply. They might operate on loop power, where the same two wires used for transmitting the signal also supply power to the sensor.

ESP32 PLC Setup

ESP32 Board Selection: Choose an ESP32 board suitable for PLC applications.

Analog Input: ESP32 boards usually have built-in ADCs (Analog to Digital Converters) that can read analog signals. Determine the number of analog input pins available and their specifications.

Signal Conditioning and Conversion

Current-to-Voltage Conversion: 4-20mA signals need to be converted to a voltage signal that the ADC can read. This involves using a resistor (known as a shunt resistor) to convert the current to a measurable voltage. Ohm’s law (V = IR) can be applied, where V is the voltage across the resistor, I is the current, and R is the resistor value.

The INA196 measures the voltage drop across this shunt resistor. The voltage across the shunt resistor (Vshunt) can be calculated using Ohm’s Law:

Vshunt = Isensor × Rshunt

Vshunt  is the voltage across the shunt resistor.

Isensor is the current through the sensor.

Rshunt is the resistance of the shunt resistor.

Once you have the voltage across the shunt resistor, you can use the gain equation for the INA196 to calculate the output voltage:

Vout =(Vshunt ×G

Vout is the output voltage of the INA196.

G is the gain of the INA196.


Assuming a 4mA current sensor connected to the INA196, the sensor is likely producing a 4mA current through a shunt resistor, and 

Isensor = 4mA 

Rshunt = 10

Vshunt = Isensor × Rshunt

Vshunt = 4mA 10

Vshunt =  40mV

G(INA196) = 20 V/V

Vout =(Vshunt ×G

Vout =(40mV ×20 V/V

Vout = 0.8 V


Resistor Selection: Choose a suitable shunt resistor value to convert the 4-20mA range to a voltage range that doesn’t exceed the ESP32 ADC’s maximum input voltage.

Circuit Connection

Connect the Sensor: Wire the sensor to the power supply and the shunt resistor. Ensure proper grounding and follow the sensor’s datasheet for correct wiring.

Connect to ESP32: Connect the output of the shunt resistor (voltage signal) to the ESP32’s analog input pin. Pay attention to the voltage range and make sure it falls within the ADC’s specifications.

ESP32 Programming

Analog Input Reading: Write code to read the analog voltage from the connected pin using the ADC library provided for the ESP32.

Voltage-to-Value Conversion: Convert the read voltage value to the actual sensor value using appropriate scaling formulas. Map the voltage range you’ve measured to the corresponding 4-20mA current range.

Testing and Calibration

Calibration: Test the setup with known values to calibrate and verify the accuracy of your sensor readings. Adjust scaling factors if needed.

Monitor Readings: Develop a monitoring system or interface (web-based, serial monitor, etc.) to display and log the sensor readings from the ESP32.


Noise and Interference: 4-20mA signals are robust against noise, but ensure proper shielding and grounding to minimize interference.

Power Supply Stability: Ensure a stable power supply for both the sensor and the ESP32 to avoid fluctuations affecting sensor readings.

Safety Measures: Comply with safety standards and take necessary precautions, especially when dealing with industrial sensors and electrical components.


By following these steps and considering these aspects, you should be able to successfully interface 4-20mA industrial sensors with an ESP32-based PLC for accurate readings and monitoring in your industrial setup.

In summary, the process of linking 4-20mA industrial sensors to an ESP32 PLC is multifaceted. It involves comprehending the sensor’s operational requirements, configuring the ESP32 platform, and implementing signal conversion mechanisms. By utilizing a resistor to transform the sensor’s current output into a compatible voltage for the ESP32’s input, establishing secure and accurate connections, and developing code to interpret sensor data, a systematic approach ensures functionality. Rigorous testing, calibration with known benchmarks, and prioritizing safety measures contribute to the development of a robust and dependable system for collecting precise data from industrial sensors via an ESP32 PLC interface.

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Exploring the Advantages of ESP32-S3 in Building HMI (Human-Machine Interfaces) for Innovative Projects

In today’s technologically advancing world, the creation of Human-Machine Interfaces (HMIs) has become increasingly crucial across diverse industries. HMIs serve as the bridge facilitating seamless communication between humans and machines, enhancing user interaction and control. Among the array of microcontrollers available, the ESP32-S3 emerges as a versatile and powerful choice for constructing HMIs due to its myriad advantages and capabilities. Let’s explore what are the advantages of ESP32-S3 in Building HMI.

Introduction to ESP32-S3

The ESP32-S3, an innovation from Espressif Systems, has garnered acclaim for its exceptional ability to amalgamate high-performance computing prowess, seamless wireless connectivity, and an extensive array of GPIO pins within its compact architecture. Its distinguishing attributes include the deployment of a dual-core processing system, adept support for both Wi-Fi and Bluetooth protocols, and a diverse suite of peripherals. This unique amalgamation positions the ESP32-S3 as an optimal and versatile microcontroller specifically tailored to cater to the intricacies and demands of Human-Machine Interface (HMI) applications across various domains.

Advantages of ESP32-S3 in Building HMI

  • Robust Processing Power: With its dual-core architecture and efficient processing units, the ESP32-S3 exhibits remarkable computational capabilities. This prowess enables swift data processing, facilitating real-time responsiveness in HMI applications, and ensuring a smooth user experience.
  • Versatile Wireless Connectivity: The ESP32-S3’s support for Wi-Fi and Bluetooth technologies proves instrumental in establishing wireless connections between the HMI system and external devices. This feature enables remote control, data exchange, and seamless integration into IoT ecosystems, enhancing the system’s flexibility and usability.
  • Abundance of GPIO Pins: Equipped with a generous number of General-Purpose Input/Output (GPIO) pins, the ESP32-S3 allows for seamless interfacing with various peripherals, including displays, sensors, and actuators. This flexibility simplifies hardware integration and expands the range of functionalities achievable within the HMI setup.
  • Rich Set of Peripherals: The ESP32-S3 incorporates a diverse array of peripherals, including SPI, I2C, UART interfaces, ADCs, DACs, and more. These peripherals facilitate interfacing with a wide range of sensors, displays, and input devices, enabling the creation of comprehensive and feature-rich HMIs.
  • Low Power Consumption: Efficient power management features in the ESP32-S3 contribute to reduced power consumption, which is crucial for battery-operated devices or applications where energy efficiency is paramount. This ensures prolonged operation without frequent recharging or power interruptions.
  • Integrated Security Features: The microcontroller integrates robust security mechanisms, including secure boot, flash encryption, and cryptographic hardware acceleration. These features bolster the overall security of the HMI system, safeguarding against potential cyber threats and unauthorized access.
  • Rich Development Ecosystem: Supported by robust development environments like ESP-IDF and Arduino IDE, the ESP32-S3 offers an extensive library of resources, documentation, and community support. This facilitates easier prototyping, debugging, and development of HMIs, reducing time-to-market for innovative solutions.

Applications of ESP32-S3 in Building HMI

The ESP32-S3 demonstrates its multifaceted applications across a spectrum of industries and domains:

  • Smart Home Automation: Leveraging the ESP32-S3 facilitates the creation of seamless and user-friendly interfaces to oversee a plethora of smart home functionalities. Users can effortlessly manage an array of operations encompassing lighting controls, temperature adjustments, surveillance systems, and an array of connected devices through a singular, intuitive interface.
  • Industrial Control Systems: The formidable processing capabilities and GPIO versatility of the ESP32-S3 render it an optimal choice for orchestrating Industrial Human-Machine Interfaces (HMIs). Its adeptness enables the monitoring, control, and automation of machinery and intricate processes within manufacturing and production landscapes, augmenting efficiency and precision.
  • Healthcare and Wearable Devices: Its efficiency in power consumption and wireless connectivity features positions the ESP32-S3 as an advantageous component in the realm of healthcare HMIs. This microcontroller serves as a foundational element in crafting solutions such as remote patient monitoring systems and innovative wearable health devices, catalyzing advancements in healthcare services.
  • IoT and Consumer Electronics: The ESP32-S3’s prowess in wireless communication renders it an indispensable component within the Internet of Things (IoT) ecosystem and consumer electronics. Its capabilities enable the development of interactive interfaces tailored for smart devices, wearables, and the central hubs orchestrating the interconnectedness within the burgeoning IoT landscape.

NORVI ESP32-S3 in Building HMI

The NORVI HMI, featuring the SP32-S3 Module from Espressif, represents a robust and versatile solution tailored for Human-Machine Interface (HMI) applications. This comprehensive system amalgamates advanced technology components, including a powerful processor with inherent communication capabilities, a 5-inch LCD with a Resistive Touch Panel for optimal user interaction, and RS-485 communication support ideal for MODBUS interactions with a HOST Processor. Moreover, the HMI incorporates Isolated Digital Inputs for seamless sensor or switch integration, Analog Inputs supporting 0 – 10V and 4-20mA ranges with a 16-bit ADC for precise signal handling, and Transistor Outputs capable of driving 24V relays and generating PWM outputs. This rich feature set positions the NORVI HMI as a versatile, reliable, and adaptable platform suitable for a broad spectrum of industrial and automation scenarios, facilitating efficient data exchange, device control, and user interaction within various environments.


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The ESP32-S3 microcontroller, renowned for its robustness and adaptability, emerges as an optimal and multifaceted solution for fabricating Human-Machine Interfaces (HMIs). Its intrinsic fusion of formidable processing capabilities, an extensive array of connectivity options, adaptable hardware interfacing capabilities, and fortified security features underscores its suitability. This versatile microcontroller’s applications transcend across multifarious industries, holding the promise of orchestrating seamless interactions between users and machines while fostering a culture of innovation within the realm of Human-Machine Interfaces. Harnessing the inherent advantages of the ESP32-S3, developers are empowered to craft intricate, highly responsive, and feature-laden HMIs meticulously tailored to cater to a wide spectrum of user needs and preferences.

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How to Interface 0-10V Analog Sensor with ESP32: A Comprehensive Guide

How to Interface 0-10V Analog Sensor with ESP32: A Comprehensive Guide

In the realm of industrial automation and control systems, interfacing a 0-10V Analog Sensor with ESP32 microcontroller is an essential requirement of systems. This requires attenuating 0 – 10V Analog signal to acceptable levels of microcontroller level ADC, in cases where higher accuracy is required, 16bit ADC of ADS1115 can be used.

Why 0-10V Analog Sensor with ESP32

If you’ve wanted a 0-10V Analog Sensor with ESP32. It is needed to follow the steps outlined in this article and be able to successfully connect the 0-10V analog sensor to the ESP32. After uploading the code and testing the setup, it was able to accurately measure the values and take action for transmit. This practical application not only helped to understand the process better but also highlighted the importance of using analog sensors with microcontrollers for real-world projects.

It’s a given that 0-10V industrial sensors are the stalwarts of the sensor family. Robust, reliable, and remarkably versatile, these sensors have been the backbone of industrial sensing for decades. Pairing them with the ESP32, a powerhouse in its own right with WiFi and Bluetooth capabilities, opens up possibilities that would make even the most seasoned engineer’s heart race.

Components Required

If you’re going to build a 0-10V Analog Sensor with ESP32, for that, You’ll need your trusty ESP32 board, a 0-10V analog sensor, a voltage divider or a level shifter (because ESP32 can’t handle 10V directly on its pins), and the usual suspects: resistors, breadboard, jumper wires, and a power supply. Quality components make for a quality project, so don’t skimp.

Circuit Diagram

Here’s where things get interesting. The ESP32 is capable but sensitive; its analog inputs can only tolerate up to 3.3V. So, we’ll need a voltage divider to step down the 0-10V signal to a more ESP32-friendly level. It has to remember the first time that a pin blew out by being overzealous with voltage. 


Coding for the ESP32 is a delightful challenge. You’ll need to calibrate your code to account for the voltage divider’s scaling. The ESP32 uses a 12-bit analog-to-digital converter, giving us values from 0 to 4095 for 0-3.3V, which we’ll map back to 0-10V. I’ve coded in various settings, but the exhilaration of seeing your code compile and run correctly never gets old.

Testing the 0-10V Analog Sensor with ESP32

Now comes the moment of truth, testing. Here, every connection, every line of code, and every calibration is put to the test. It’s more than just making sure things work; it’s about precision, it’s about reliability—it’s about the perfect interplay between hardware and software.

  • Uploading the Code

Uploading the code to the ESP32 is as straightforward as it is nerve-wracking. The anticipation builds with each progress bar increment. If all goes well, you’ll be greeted with a series of values in your serial monitor that reflect the real-world parameters your sensor is detecting.

  • Output

Watching the serial monitor tick off numbers as your sensor reacts to the environment is akin to a maestro conducting an orchestra. Each value is a note, each fluctuation a harmony. It’s not just numbers; it’s a symphony of data telling you a story of the physical world around you.

Insider Tip: Always monitor your sensor’s output before deploying it in the field. It’s the difference between a well-tuned instrument and a cacophony.


Interfacing a 0-10V Analog Sensor with ESP32 is a task that epitomizes the fusion of old-school robustness with cutting-edge technology. It’s a testament to an engineer’s ability to adapt, innovate, and overcome the challenges of a constantly evolving field. Go forth, interface with confidence, and may your sensors always read true.



NORVI IIOT series offers 0 – 10V compatible Analog Inputs, where you can get rid of the external attenuation networks and it has a 16 bit ADC resolution with higher accuracy. This makes ESP32 Applicable in industrial 0 – 10V measurement applications.  

So, if you need 0-10V Analog Sensor with ESP32, NORVI is the best solution.

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Communicating with MODBUS Devices with ESP32 to power-up innovative Automation.

Communicating with MODBUS Devices with ESP32 to power-up innovative Automation

Learn how to unleash the power of industrial automation and IoT applications by leveraging MODBUS Devices with ESP32. Explore MODBUS RTU and TCP/IP protocols, hardware setups, and libraries for seamless integration. Discover why NORVI controllers stand out as a reliable MODBUS solution. Visit our product page for more details

Communicating via MODBUS Devices with ESP32 microcontroller opens up a world of possibilities for industrial automation, IoT applications, and control systems. MODBUS, a widely used communication protocol, allows various devices to exchange data straightforwardly and efficiently. The ESP32, with its powerful capabilities and built-in support for various communication protocols, provides an excellent platform to interface with MODBUS-enabled devices.

Understanding MODBUS Protocol

MODBUS is a serial communication protocol developed in the late 1970s for industrial applications. It has since evolved into a widely adopted standard for connecting electronic devices in supervisory control and data acquisition (SCADA) systems, industrial automation, and other applications.

The protocol operates on two main variants: MODBUS RTU (Remote Terminal Unit) and MODBUS TCP/IP (Transmission Control Protocol/Internet Protocol). RTU uses serial communication (RS-232 or RS-485), while TCP/IP operates over Ethernet networks.

MODBUS follows a client-server architecture, where a master device (client) initiates requests to read or write data to slave devices (servers). Each device in a MODBUS network has a unique address to enable communication.

MODBUS Devices with ESP32

MODBUS Devices with ESP32

The ESP32 is a powerful and versatile microcontroller equipped with Wi-Fi, Bluetooth, and various I/O interfaces. To communicate with MODBUS devices, the ESP32 can use its UART (Universal Asynchronous Receiver-Transmitter) for MODBUS RTU communication or its Wi-Fi module for MODBUS TCP/IP communication. Therefore, MODBUS Devices with ESP32 is vital.


  • Hardware Setup:
    • Connect RS-485 devices in multidrop to the RS-485 terminal of the NORVI Controller.  
  • Software Implementation:
    • Utilize existing libraries like “ModbusMaster” or “Modbus RTU” for Arduino/ESP-IDF to handle MODBUS communication.
    • Configure the ESP32’s UART pins and baud rate to match the settings of the MODBUS device.
    • Implement read and write functions to communicate with MODBUS slaves using the chosen library.

Using ESP32’s Wi-Fi for MODBUS TCP/IP

  • Wi-Fi Setup:
    • Connect the ESP32 to the local Wi-Fi network to establish an internet connection.
  • Library and Implementation:
    • Employ libraries like “ModbusIP_ESP8266” or “ESP8266ModbusServer” adapted for the ESP32.
    • Set up the ESP32 as a MODBUS TCP/IP server or client, depending on the application requirements.
    • Implement read and write functions to communicate with other MODBUS devices over Wi-Fi.

Considerations and Best Practices

  • Addressing: Ensure correct addressing of MODBUS devices to access specific data registers.
  • Error Handling: Implement error handling mechanisms to manage communication failures or timeouts.
  • Data Validation: Validate the received data to ensure integrity and accuracy.
  • Security: Implement security measures, especially when using Wi-Fi, to prevent unauthorized access to the network and devices.

WHY NORVI as a MODBUS Solution?

Our NORVI controllers have built-in TTL to RS-485 converters.. So the RS-485 devices can be connected directly to the NORVI Controllers. RS-485 on the NORVI Controller can be used to communicate with external sensor networks and PLCs.

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The ESP32’s flexibility and capabilities make it an excellent platform for interfacing with MODBUS-enabled devices. Whether using UART for MODBUS RTU or Wi-Fi for MODBUS TCP/IP communication, the ESP32 can efficiently handle data exchange, enabling seamless integration into various industrial and IoT applications. Understanding the nuances of the MODBUS protocol and leveraging appropriate libraries and configurations is key to successful communication between MODBUS Devices with ESP32, facilitating efficient control and monitoring in diverse settings.

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Arduino Digital Inputs vs Industrial Arduino Inputs :Unleashing the Potency for Innovative Projects

Arduino Digital Inputs vs Industrial Arduino Inputs :Unleashing the Potency for Innovative Projects

Discover how Arduino’s accessibility and adaptability have transformed microcontroller programming for hobbyists, students, and enthusiasts. Dive into the crucial realm of Arduino Digital Inputs vs Industrial Arduino Inputs, exploring their pivotal role and comparing them.

Arduino has revolutionized the automation world by making microcontroller programming accessible to hobbyists, students, and enthusiasts. Its ease of use and versatility have spurred widespread adoption for countless projects. One critical aspect of using Arduino boards involves understanding digital inputs and their applications, particularly when comparing them to inputs found in industrial-grade Arduino counterparts.

Understanding Arduino Digital Inputs

Arduino boards are equipped with an array of digital pins that function flexibly as either inputs or outputs. Specifically, digital inputs perform the pivotal task of interpreting voltage levels, determining the presence of either a HIGH or LOW signal. This adaptability enables them to effectively detect and process signals emanating from a diverse range of sources, including switches, sensors, or other digital devices.

The versatility of Arduino’s digital inputs is a key factor contributing to their widespread applicability across various domains. From facilitating straightforward robotics projects to aiding in the automation of household systems and serving as integral components in educational initiatives, these inputs prove their utility in a multitude of scenarios. Their functionality extends to tasks such as discerning the status of buttons, capturing motion data through sensors, or efficiently receiving signals transmitted by other digital devices.

Moreover, their ease of integration into projects of varying complexities renders them indispensable tools for hobbyists, students, and enthusiasts exploring the realms of electronics and programming. The simplicity with which these inputs can be employed to interface with an extensive array of sensors and devices amplifies their significance in enabling innovation and experimentation within the Arduino ecosystem.

In essence, the adaptability and multifaceted nature of Arduino’s digital inputs not only cater to a wide spectrum of applications, including basic to moderately complex projects, but also serve as foundational elements fostering learning, exploration, and creativity in the realm of microcontroller-based electronics.

Advantages of Arduino Digital Inputs

  • Ease of Use: The user-friendly nature of Arduino’s digital inputs is a key attribute that caters to beginners, establishing them as an ideal choice for entry-level projects. Their straightforward configuration and intuitive setup contribute significantly to simplifying the initial learning curve for individuals new to electronics and programming. This accessibility empowers novices to delve into the world of microcontrollers with confidence, fostering a sense of accomplishment and encouraging further exploration and skill development.
  • Cost-Effectiveness: Another notable advantage lies in the cost-effectiveness of Arduino boards, which serve as a gateway for hobbyists to experiment without imposing a substantial financial burden. These boards are relatively affordable, ensuring accessibility to a wider demographic and encouraging experimentation and innovation without the constraints of high initial investments. This affordability encourages creativity, enabling enthusiasts to explore various concepts, test ideas, and bring their projects to life without incurring exorbitant expenses.
  • Versatility: Moreover, the versatility exhibited by these digital inputs is truly remarkable. Their compatibility with a vast spectrum of sensors and devices extends the horizons of project possibilities, allowing for diverse applications across multiple domains. Whether integrating with temperature sensors, motion detectors, or communication modules, the adaptability of Arduino’s digital inputs facilitates the creation of a wide array of innovative projects, offering endless opportunities for experimentation and customization.
  • Community Support: The robust online community surrounding Arduino significantly contributes to its appeal. This vast network provides an abundance of resources, including tutorials, forums, and extensive libraries. Such comprehensive support systems are invaluable assets for users at all skill levels. Beginners benefit from step-by-step tutorials guiding them through their initial projects, while more experienced users can engage in discussions, seek solutions to complex issues, and access a wealth of shared knowledge, further enriching their understanding and capabilities.

Industrial Arduino Inputs: A Different League

Industrial-grade Arduino boards, such as those produced by reputable brands like Siemens, PLCNext, or Industrial Shields, stand in stark contrast to their standard counterparts, as they are purposefully crafted to withstand the rigors of more demanding and rigorous environments. These specialized boards are meticulously designed to cater to the unique and stringent demands prevalent in industrial settings, distinguishing themselves with their superior durability, reliability, and precision.

One of the hallmark features of these industrial-grade Arduino boards is their inputs, which are engineered with a specific focus on meeting the exacting standards characteristic of industrial applications especially Industrial Arduino Inputs. Unlike standard Arduino inputs, which are adept at serving a broad range of projects, these specialized inputs are purpose-built to operate flawlessly amidst the challenging conditions prevalent in industrial environments.

In industrial settings, reliability is paramount, and these boards are meticulously crafted to ensure consistent performance even in the face of harsh conditions. They boast heightened resilience against temperature fluctuations, electrical noise, and voltage variations, factors that are common in industrial setups. This robustness ensures uninterrupted functionality, mitigating the risk of downtime and potential losses associated with equipment failures.

Durability is another defining characteristic of these industrial-grade boards. Components utilized in their construction are chosen for their ruggedness, ensuring prolonged and reliable operation in challenging and often unforgiving environments. The robust build quality enables these boards to endure harsh conditions where standard electronics might falter, providing a reliable backbone for critical industrial processes.

Furthermore, precision and accuracy are crucial aspects addressed in the design of Industrial Arduino Inputs. They offer superior accuracy in signal readings, a vital requirement for applications that demand precise measurements and high-level accuracy. This attribute makes them indispensable in industries where precise data acquisition is integral, such as in automation, process control, or monitoring systems.

Moreover, many of these specialized industrial-grade Arduino boards undergo stringent certification processes, adhering to industry standards and safety regulations. Compliance with these standards ensures not only reliability but also safety in professional industrial settings, instilling confidence in their deployment for critical applications.

Characteristics of Industrial Arduino Inputs

The distinguishing characteristics of Industrial Arduino Inputs encompass a range of features meticulously tailored to meet the exacting demands of industrial applications, setting them apart from their standard counterparts. These specialized inputs are engineered to deliver unparalleled performance, resilience, and precision in challenging and high-stakes industrial environments.

  • Reliability: This stands as a cornerstone attribute of these industrial inputs, underpinning their ability to function consistently amidst the harsh conditions prevalent in industrial settings. Specifically constructed to endure extreme temperature variations, combat electrical noise, and tolerate voltage fluctuations, these inputs exhibit an enhanced tolerance to environmental stresses. This robustness ensures unwavering performance, minimizing the risk of malfunctions or disruptions even in the face of adverse conditions.
  • Durability: This is another critical facet that defines the essence of industrial-grade Arduino inputs. These inputs are meticulously crafted using components renowned for their sturdiness and resilience. The choice of rugged materials and construction techniques empowers these inputs to withstand prolonged exposure to challenging environments, guaranteeing sustained and reliable operation over extended periods. This durability is a cornerstone for industries where equipment longevity is paramount to maintain uninterrupted processes.
  • Precision and Accuracy: Precision and accuracy in signal readings represent pivotal aspects addressed in the design and calibration of industrial-grade Arduino inputs. These specialized inputs are engineered with a heightened emphasis on delivering superior accuracy, making them indispensable for applications that mandate precise data acquisition. Their ability to provide meticulous and reliable measurements is pivotal in industries such as manufacturing, quality control, and scientific instrumentation.
  • Certifications: Compliance with industry standards and certifications is a hallmark feature of many industrial-grade Arduino inputs. These inputs undergo rigorous testing and validation processes to ensure adherence to established standards and safety regulations. This compliance not only underscores their reliability but also guarantees their suitability for deployment in professional settings where adherence to industry protocols is non-negotiable.

Choosing Between the Two

The choice between standard Arduino digital inputs and Industrial Arduino Inputs largely depends on the project’s requirements:

  • For hobbyist, educational, or prototyping purposes where cost-effectiveness and ease of use are prioritized, standard Arduino digital inputs are sufficient.
  • In industrial settings or projects demanding high reliability, durability, and adherence to specific regulations, industrial-grade Arduino inputs are the preferred choice.


Arduino digital inputs have democratized electronics, empowering countless enthusiasts to explore their creativity. However, when it comes to industrial applications with stringent reliability and durability demands, specialized Industrial Arduino Inputs offer the necessary robustness and precision required for such environments. Understanding the specific needs of a project is crucial in determining which type of Arduino inputs to employ, ensuring optimal performance and reliability in diverse applications.

Programmable IoT Devices

NORVI offers ESP32-based PLC powered by Arduino and offers Industrial Arduino inputs with many varieties for industrial automation. Visit our product page now:

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