1. Introduction
The Arduino Opta WiFi (Model AFX00002) is a robust industrial IoT controller designed for automation and control systems. This device integrates Wi-Fi connectivity, digital and analog I/O, and Modbus support, facilitating remote monitoring and control in various industrial environments. This manual provides essential information for the safe and effective use of your Arduino Opta WiFi controller.
2. Consignes de sécurité
Please read and understand all safety instructions before operating the Arduino Opta WiFi. Failure to follow these instructions may result in injury, damage to the device, or improper operation.
- Alimentation: Assurer l'alimentation voltage is within the specified range (12-24 V DC). Incorrect voltagCela peut endommager l'appareil.
- Câblage : All wiring should be performed by qualified personnel. Disconnect power before making any connections.
- Environnement: Operate the device within its specified environmental conditions (temperature, humidity) to prevent malfunction.
- Mise à la terre : Proper grounding is essential for safety and to prevent electromagnetic interference.
3. Produit terminéview
The Arduino Opta WiFi is a compact and versatile controller. Familiarize yourself with its components and interfaces.

Figure 3.1 : Angulaire view of the Arduino Opta WiFi controller, showing its compact design and various ports.
3.1. Panneau avant

Figure 3.2 : Face avant view of the Opta WiFi, highlighting the Reset and User buttons, Status LEDs, USB port, and Ethernet port.
Le panneau avant comprend :
- Bouton de réinitialisation: Used to restart the controller.
- USER Button: A programmable button for custom functions.
- STATUS LEDs (1-4): Indicate the operational status of the device and can be programmed for custom feedback.
- Port USB : For programming and serial communication.
- ETH RJ45 Port: For Ethernet connectivity.
3.2. Top and Bottom Terminals

Figure 3.3 : Côté view illustrating the input and output terminals for power, digital/analog inputs, and relay outputs.
The top and bottom sections feature screw terminals for power, inputs, and outputs:
- Puissance d'entrée : 12-24 V CC.
- Digital/Analog Inputs: Terminals for connecting sensors and other input devices.
- Sorties relais : Terminals for controlling actuators and other output devices (up to 10A).
- Modbus RS485: Dedicated terminals for Modbus RTU communication.
4. Installation
Follow these steps for initial setup of your Arduino Opta WiFi controller.
4.1. Montage
The Opta WiFi is designed for DIN rail mounting, commonly found in industrial control panels.

Figure 4.1: The Arduino Opta WiFi securely mounted on a standard DIN rail within an industrial enclosure.
- Ensure the DIN rail is properly installed and secured.
- Align the Opta WiFi's rear clip with the DIN rail.
- Press the controller firmly onto the rail until it clicks into place.
4.2. Connexion électrique
Connect a 12-24 V DC power supply to the designated power input terminals. Observe polarity (+ and -).
4.3. Câblage d'entrée/sortie
Connect your sensors, actuators, and other devices to the appropriate digital I/O, analog input, and relay output terminals. Refer to your application's wiring diagrams and the Opta WiFi's pinout for correct connections.
4.4. Configuration initiale du logiciel
The Arduino Opta WiFi can be programmed using the Arduino IDE or PLC IDE.
- Téléchargez et installez la dernière version de l'IDE Arduino depuis le site officiel d'Arduino. website.
- Install the necessary board support packages for the Opta WiFi.
- Connect the Opta WiFi to your computer via the USB port.
- Sélectionnez la carte et le port COM appropriés dans l'IDE Arduino.
4.5. Configuration du réseau
Configure Wi-Fi or Ethernet connectivity as required for your application.
- Wifi: Use the Arduino IDE to upload a sketch that configures the Wi-Fi module with your network's SSID and password.
- Ethernet : Connect an Ethernet cable to the RJ45 port. Network settings (IP address, subnet mask, gateway) can be configured via software.
5. Fonctionnement
Operating the Arduino Opta WiFi involves programming and interacting with its various functionalities.
5.1. Programming the Opta WiFi
Develop your control logic using the Arduino IDE (C++) or PLC IDE (IEC 61131-3 languages). Upload your compiled code to the device via USB or network.
5.2. Using Digital I/O
Digital inputs can read binary states (ON/OFF) from switches or sensors. Digital outputs (via relays) can control devices like lights, motors, or contactors.
5.3. Using Analog Inputs
Analog inputs can read continuous voltage signals (e.g., 0-10V) from analog sensors, allowing for precise measurement of physical parameters.
5.4. Communication Modbus
The Opta WiFi supports Modbus RTU over RS485 and Modbus TCP over Ethernet. This enables seamless integration with other industrial devices and SCADA systems.
5.5. Indicateurs d'état
The four STATUS LEDs provide visual feedback on the controller's state. Their behavior can be customized through programming to indicate specific events or operational modes.
6. Entretien
Regular maintenance ensures the longevity and reliable operation of your Arduino Opta WiFi.
- Mises à jour du micrologiciel : Consultez régulièrement le site officiel d'Arduino. website for firmware updates. Apply updates to benefit from new features, improvements, and security patches.
- Nettoyage: Veillez à ce que l'appareil reste propre et exempt de poussière et de débris. Utilisez un chiffon doux et sec pour le nettoyer. N'utilisez pas de nettoyants liquides ni de solvants.
- Contrôles environnementaux : Ensure the operating environment remains within specified temperature and humidity ranges. Verify that ventilation is not obstructed.
- Intégrité de la connexion : Vérifiez périodiquement le serrage des connexions électriques et recherchez les signes de corrosion ou de dommages.
7. Dépannage
This section addresses common issues you might encounter with the Arduino Opta WiFi.
- L'appareil ne s'allume pas :
Vérifier: Verify the power supply is connected correctly and providing 12-24 V DC. Ensure power supply is functional. - Impossible de télécharger le code :
Vérifier: Ensure the USB cable is securely connected. Verify the correct board and COM port are selected in the Arduino IDE. Reinstall board drivers if necessary. - Problèmes de connectivité Wi-Fi:
Vérifier: Confirm SSID and password in your code are correct. Ensure the Wi-Fi network is within range and operational. Check for firewall restrictions. - Problèmes de connectivité Ethernet :
Vérifier: Verify the Ethernet cable is properly connected. Confirm network settings (IP address, subnet mask, gateway) are correct for your network. - Input/Output Not Responding:
Vérifier: Verify wiring connections to sensors/actuators. Ensure your program logic correctly reads inputs and controls outputs. Test sensors/actuators independently if possible. - Appareil bloqué/ne répondant pas :
Vérifier: This could indicate a software issue. Try resetting the device using the RESET button. Review your code for potential infinite loops or memory issues.
8. Spécifications
Technical specifications for the Arduino Opta WiFi (Model AFX00002).
| Fonctionnalité | Spécification |
|---|---|
| Dimensions du produit | 3.15 x 2.76 x 8.66 pouces; 7.05 onces |
| Numéro de modèle de l'article | AFX00002 |
| Fabricant | Arduino Srl |
| Matériel | Acier inoxydable (Note: This likely refers to internal components or mounting hardware, not the enclosure material.) |
| Vol d'approvisionnementtage | 12-24 V DC |
| Connectivité | Wi-Fi, 10/100 Base-T Ethernet, Modbus RS485 |
| Entrées/Sorties | Digital I/O, Analog Inputs, Relay Outputs (10A) |
| Langages de programmation | Arduino (C++), PLC programming languages (IEC 61131-3) |
9. Garantie et assistance
For warranty information, please refer to the documentation included with your product or visit the official Arduino website. Technical support and additional resources, including forums and tutorials, are available through the Arduino community and support channels.
Official Arduino Website: www.arduino.cc
10. Ex d'applicationamples
The Arduino Opta WiFi is suitable for a variety of industrial and IoT applications.

Figure 10.1: An industrial worker monitoring systems, demonstrating the Opta WiFi's role in factory automation and remote management.

Figure 10.2: An automated warehouse with a robotic arm, illustrating the Opta WiFi's potential in logistics and material handling automation.

Figure 10.3: A smart home environment, showcasing the Opta WiFi's adaptability for advanced building management and smart infrastructure projects.





