1. ઉત્પાદન ઓવરview
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. મુખ્ય લક્ષણો
- ESP32-S3 Microcontroller: Equipped with an Xtensa 32-bit LX7 dual-core processor, operating at up to 240 MHz for efficient processing.
- વાયરલેસ કનેક્ટિવિટી: 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).
- ઇથરનેટ બંદર: Onboard W5500 Ethernet chip for 10/100Mbps network communication.
- પાવર ઓવર ઇથરનેટ (PoE): Optional version supports IEEE 802.3af standard for combined power and data over a single Ethernet cable.
- Flexible Power Input: Supports USB Type-C (5V) for power, debugging, and firmware, and a wide 7-36V DC screw terminal input for industrial applications.
- RTC Chip: 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.
- સ્થિતિ સૂચકાંકો: Built-in RGB LED, PWR, TXD, and RXD indicators for monitoring device status.
- બિડાણ: Rail-mounted ABS protective case for easy installation and enhanced safety.
3. પેકેજ સામગ્રી
પેકેજ ખોલતી વખતે ખાતરી કરો કે બધી વસ્તુઓ હાજર છે અને સારી સ્થિતિમાં છે.
- ESP32-S3-POE-ETH-8DI-8RO Module x 1
- 2.4G 4dBi SMA Antenna x 1
- સ્ક્રુડ્રાઇવર x 1

4. સેટઅપ અને ઇન્સ્ટોલેશન
4.1 પાવર સપ્લાય કનેક્શન
The module supports multiple power input methods:
- USB પ્રકાર-C: Connect a 5V USB power source to the USB Type-C port for power, debugging, and firmware uploading.
- Screw Terminal: Connect a 7-36V DC power supply to the designated screw terminals. Ensure correct polarity.
- પાવર ઓવર ઇથરનેટ (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.
૪.૨ નેટવર્ક કનેક્ટિવિટી
- Wi-Fi: Attach the provided 2.4G SMA antenna to the external antenna connector. Configure Wi-Fi settings via firmware.
- બ્લૂટૂથ LE: The module supports Bluetooth LE for short-range wireless communication.
- ઈથરનેટ: Connect a standard Ethernet cable to the RJ45 port for wired network access.
4.3 રિલે કનેક્શન્સ
The module provides 8 relay channels. Each relay has Normally Open (NO) and Common (COM) contacts. Refer to the diagram for wiring exampલેસ

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

4.5 RS485 ઇન્ટરફેસ
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 Enclosure and Mounting
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. ઓપરેટિંગ સૂચનાઓ
૩.૩ પ્રારંભિક પાવર-અપ અને ગોઠવણી
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 રિલે નિયંત્રણ
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 RS485 કોમ્યુનિકેશન
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. Board Layout and Components
Understanding the board layout is crucial for proper connection and operation. The following diagrams highlight key components and their functions.
6.1 ટોચ View

- ESP32-S3-WROOM-1U-N16R8 (ESP32-S3 module)
- 8-channel quality relays
- Optocoupler isolation for relays
- રીસેટ બટન
- PoE header (for PoE module)
- બુટ બટન
- પાવર IC
- Digital isolation
- Power supply isolation
- Bi-directional optocoupler isolation
- RTC બેટરી ધારક
- બઝર
- Digital input screw terminals
- Pin header (for other devices)
- LED indicators (PWR, RXD, TXD)
- યુએસબી ટાઇપ-સી કનેક્ટર
- WS2812 RGB LED
- ઇથરનેટ પોર્ટ
- બાહ્ય એન્ટેના કનેક્ટર
- Power supply screw terminal
- RS485 કમ્યુનિકેશન ઇંટરફેસ
- RS485 matching resistor jumper
- Relay screw terminals
6.2 નીચે View

- ઓનબોર્ડ TVS (ક્ષણિક વોલ્યુમtage Suppressor)
- RS485 conversion chip
- MP1605GTF-Z (DC-DC power module)
- PCF85063ATL (RTC chip)
- TCA9554PWR (GPIO expansion chip)
- W5500 (Ethernet chip)
- TF કાર્ડ સ્લોટ
7. સ્પષ્ટીકરણો
| શ્રેણી | પરિમાણ | મૂલ્ય |
|---|---|---|
| માઇક્રોકન્ટ્રોલર | મોડ્યુલ | ESP32-S3-WROOM-1U-N16R8 (ESP32-S3) |
| પ્રોસેસર | Xtensa 32-bit LX7 dual-core, up to 240 MHz | |
| વાયરલેસ કોમ્યુનિકેશન | Wi-Fi | 2.4GHz (802.11 b/g/n) |
| બ્લૂટૂથ | બ્લૂટૂથ 5, BLE | |
| યુએસબી | કનેક્ટર | યુએસબી ટાઇપ-સી |
| પાવર સપ્લાય | 5V | |
| Isolated Communication Interface | ઈન્ટરફેસ | RS485 |
| રક્ષણ | TVS diode, surge protection & ESD protection | |
| ઈથરનેટ ઈન્ટરફેસ | બંદર | PoE Ethernet port (IEEE 802.3af standard for PoE version) |
| ડિજિટલ ઇનપુટ | ઇનપુટ ચેનલો | 8 |
| ઇનપુટ વોલ્યુમtage | 5V-36V | |
| ઇનપુટ પ્રકાર | Passive input / active input (NPN or PNP type) | |
| અલગતા પ્રકાર | Bi-directional optocoupler isolation | |
| રિલે | રિલે ચેનલો | 8 |
| સંપર્ક રેટિંગ | ≤10A 250V AC / 30V DC | |
| સંપર્ક ફોર્મ | 1NO 1NC | |
| આઇસોલેશન | ઓપ્ટોકપ્લર આઇસોલેશન | |
| એલઇડી સૂચકાંકો | આરજીબી | Programmable color LED |
| પીડબ્લ્યુઆર | લાલ શક્તિ સૂચક | |
| TXD | Green TX indicator | |
| આરએક્સડી | Blue RX indicator | |
| Power Supply Screw Terminal | ભાગtage રેન્જ | 7-36V |
| દેખાવ | બિડાણ | Rail-mount ABS protective case |
| પરિમાણો | 175 × 90 × 40 (mm) |

8. જાળવણી
The Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module is designed for robust industrial use. To ensure its longevity and reliable operation:
- પર્યાવરણીય પરિસ્થિતિઓ: Operate the module within specified temperature and humidity ranges. Avoid exposure to excessive dust, moisture, or corrosive substances.
- સફાઈ: જો જરૂરી હોય તો, નરમ, સૂકા કપડાથી મોડ્યુલના બાહ્ય ભાગને હળવા હાથે સાફ કરો. પ્રવાહી ક્લીનર્સ અથવા સોલવન્ટનો ઉપયોગ કરશો નહીં.
- ફર્મવેર અપડેટ્સ: Regularly check the Waveshare Wiki for firmware updates to ensure optimal performance and access to new features.
- જોડાણો: Periodically inspect all screw terminal connections to ensure they are secure and free from corrosion.
9. મુશ્કેલીનિવારણ
If you encounter issues with your Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module, consider the following troubleshooting steps:
- કોઈ શક્તિ નથી:
- 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):
- Wi-Fi: Ensure the antenna is securely attached. Verify Wi-Fi credentials and network availability. Try resetting the module.
- ઈથરનેટ: 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.
- Ensure the load current and 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.
- ઇનપુટ વોલ્યુમ ચકાસોtage range for active inputs (5V-36V).
- RS485 Communication Issues:
- 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.
૩.૧. સપોર્ટ અને સંસાધનો
Waveshare provides comprehensive resources to assist users with their products:
- Official Wiki: 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.
- ટેકનિકલ સપોર્ટ: For specific technical inquiries or issues not covered in the documentation, please contact Waveshare customer support through their official channels.
10.1 વોરંટી માહિતી
Warranty terms and conditions for this product are provided by Waveshare. Please refer to the product packaging or the official Waveshare webવિગતવાર વોરંટી માહિતી માટે સાઇટ.





