Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module User Manual

1. Prodotto finitoview

The Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module is a high-performance control unit designed for industrial automation and IoT applications. It integrates an ESP32-S3 microcontroller, offering robust wireless communication capabilities (Wi-Fi and Bluetooth LE), multiple isolation protection circuits, and versatile connectivity options including isolated RS485 and an Ethernet port with optional Power over Ethernet (PoE).

This module features 8 high-quality relays and 8 digital inputs, making it suitable for controlling various devices and monitoring industrial signals. Its design emphasizes reliability and safety in demanding environments.

2. Caratteristiche principali

• Microcontrollore ESP32-S3: Equipped with an Xtensa 32-bit LX7 dual-core processor, operating at up to 240 MHz for efficient processing.
• Connettività wireless: Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode communication for flexible network integration.
• 8-Channel Relays: High-quality relays with a contact rating of ≤10A 250V AC / 30V DC, suitable for various loads.
• 8-Channel Digital Inputs: Supports both passive (dry contact) and active (wet contact) digital inputs with bi-directional optocoupler isolation.
• Isolated RS485 Interface: For reliable connection to Modbus industrial modules or sensors, featuring hardware automatic control and protection circuits (TVS diode, surge protection, ESD protection).
• Porta Ethernet: Onboard W5500 Ethernet chip for 10/100Mbps network communication.
• Alimentazione su Ethernet (PoE): Optional version supports IEEE 802.3af standard for combined power and data over a single Ethernet cable.
• Ingresso di potenza flessibile: Supports USB Type-C (5V) for power, debugging, and firmware, and a wide 7-36V DC screw terminal input for industrial applications.
• Chip RTC: Onboard Real-Time Clock for scheduled tasks and time-sensitive operations.
• Multiple Isolation Protection: Includes optocoupler isolation, power isolation, and digital isolation to prevent interference and ensure stable operation.
• Indicatori di stato: Built-in RGB LED, PWR, TXD, and RXD indicators for monitoring device status.
• Allegato: Rail-mounted ABS protective case for easy installation and enhanced safety.

3. Contenuto della confezione

Verificare che tutti gli articoli siano presenti e in buone condizioni all'apertura della confezione.

• ESP32-S3-POE-ETH-8DI-8RO Module x 1
• 2.4G 4dBi SMA Antenna x 1
• Cacciavite x 1

4. Configurazione e installazione

4.1 Collegamento dell'alimentazione

Il modulo supporta più metodi di alimentazione:

• USB Tipo-C: Connect a 5V USB power source to the USB Type-C port for power, debugging, and firmware uploading.
• Terminale a vite: Connect a 7-36V DC power supply to the designated screw terminals. Ensure correct polarity.
• Alimentazione su Ethernet (PoE): For the PoE version, connect an 802.3af compliant PoE switch or router to the Ethernet port. This provides both power and network connectivity through a single cable.

4.2 Connettività di rete

• Wifi: Attach the provided 2.4G SMA antenna to the external antenna connector. Configure Wi-Fi settings via firmware.
• Bluetooth LE: The module supports Bluetooth LE for short-range wireless communication.
• Collegamento Ethernet: Connect a standard Ethernet cable to the RJ45 port for wired network access.

4.3 Connessioni Relè

The module provides 8 relay channels. Each relay has Normally Open (NO) and Common (COM) contacts. Refer to the diagram for wiring exampmeno.

4.4 Collegamenti di ingresso digitale

The 8 digital inputs support both passive (dry contact) and active (wet contact) signals. Ensure proper wiring based on the sensor type.

4.5 interfaccia RS485

Connect RS485 devices (e.g., Modbus modules, sensors) to the isolated RS485 screw terminals. The interface features hardware automatic control for data direction and includes protection circuits.

4.6 Involucro e montaggio

The module is housed in a rail-mounted ABS protective case, designed for easy installation in industrial control cabinets using a 35mm DIN rail.

5. Istruzioni per l'uso

5.1 Accensione iniziale e configurazione

After connecting the power supply, the PWR LED should illuminate. The module can be configured via its Wi-Fi interface (AP mode), Ethernet, or through a serial connection via the USB Type-C port. Refer to the Waveshare Wiki for detailed programming and configuration guides.

5.2 Controllo relè

The 8 relays can be controlled programmatically via the ESP32-S3 microcontroller. This allows for switching AC or DC loads based on logic defined in the firmware.

5.3 Digital Input Monitoring

Monitor the status of the 8 digital inputs to detect external events from sensors, switches, or other industrial signals. The bi-directional optocoupler isolation ensures signal integrity and protection.

5.4 Comunicazione RS485

Utilize the isolated RS485 interface for communication with other industrial devices, typically using the Modbus protocol. This enables data exchange and control within an industrial network.

5.5 Firmware Upload and Debugging

Connect the module to a computer via the USB Type-C port. Use the appropriate development environment (e.g., Arduino IDE, ESP-IDF) to upload custom firmware and debug applications.

6. Layout e componenti della scheda

Understanding the board layout is crucial for proper connection and operation. The following diagrams highlight key components and their functions.

6.1 In alto View

1. ESP32-S3-WROOM-1U-N16R8 (ESP32-S3 module)
2. 8-channel quality relays
3. Optocoupler isolation for relays
4. Pulsante RESET
5. PoE header (for PoE module)
6. Pulsante BOOT
7. CI di alimentazione
8. Digital isolation
9. Power supply isolation
10. Bi-directional optocoupler isolation
11. Supporto per batteria RTC
12. Cicalino
13. Digital input screw terminals
14. Pin header (for other devices)
15. LED indicators (PWR, RXD, TXD)
16. Connettore USB di tipo C
17. WS2812 RGB LED
18. Porta Ethernet
19. Connettore per antenna esterna
20. Power supply screw terminal
21. Interfaccia di comunicazione RS485
22. RS485 matching resistor jumper
23. Relay screw terminals

6.2 In basso View

24. TVS di bordo (transitorio voltage Suppressor)
25. RS485 conversion chip
26. MP1605GTF-Z (DC-DC power module)
27. PCF85063ATL (RTC chip)
28. TCA9554PWR (GPIO expansion chip)
29. W5500 (Ethernet chip)
30. Slot per scheda TF

7. Specifiche

8. Manutenzione

The Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module is designed for robust industrial use. To ensure its longevity and reliable operation:

• Condizioni ambientali: Operate the module within specified temperature and humidity ranges. Avoid exposure to excessive dust, moisture, or corrosive substances.
• Pulizia: Se necessario, pulire delicatamente l'esterno del modulo con un panno morbido e asciutto. Non utilizzare detergenti liquidi o solventi.
• Aggiornamenti del firmware: Regularly check the Waveshare Wiki for firmware updates to ensure optimal performance and access to new features.
• Connessioni: Periodically inspect all screw terminal connections to ensure they are secure and free from corrosion.

9. Risoluzione Dei Problemi

If you encounter issues with your Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module, consider the following troubleshooting steps:

• Nessun potere:
  • Check if the power supply (USB-C or 7-36V terminal) is correctly connected and providing the specified voltage.
  • Ensure the PWR LED is illuminated. If not, verify the power source.
  • For PoE versions, confirm the Ethernet cable is connected to an active PoE switch/injector.
• No Network Connectivity (Wi-Fi/Ethernet):
  • Wifi: Ensure the antenna is securely attached. Verify Wi-Fi credentials and network availability. Try resetting the module.
  • Collegamento Ethernet: Check the Ethernet cable connection. Confirm the network switch/router is operational.
• Relays Not Actuating:
  • Verify the control logic in your firmware.
  • Check the power supply to the module and the load connected to the relay.
  • Assicurare la corrente di carico e la voltage do not exceed the relay's contact rating.
• Digital Inputs Not Responding:
  • Confirm correct wiring for passive (dry contact) or active (wet contact) sensors.
  • Check the sensor's functionality independently.
  • Verificare il volume immessotage range for active inputs (5V-36V).
• Problemi di comunicazione RS485:
  • Check wiring polarity (A/B).
  • Ensure the RS485 matching resistor jumper is correctly set if needed.
  • Verify baud rate and communication parameters in your software.

For further assistance, consult the official Waveshare Wiki resources or contact Waveshare technical support.

10. Supporto e risorse

Waveshare provides comprehensive resources to assist users with their products:

• Wiki ufficiale: The Waveshare Wiki is the primary source for detailed documentation, programming guides, sample code, and technical specifications. Visit the Waveshare store page and look for the Wiki link.
• Supporto tecnico: For specific technical inquiries or issues not covered in the documentation, please contact Waveshare customer support through their official channels.

10.1 Informazioni sulla garanzia

Warranty terms and conditions for this product are provided by Waveshare. Please refer to the product packaging or the official Waveshare websito per informazioni dettagliate sulla garanzia.