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Esp32 Relay Rs485

Les 10 meilleurs produits en septembre 2025
Dernière mise à jour : 9 septembre 2025
Waveshare
Waveshare
Waveshare Industrial 6-Channel ESP32-S3 WiFi Relay Module, Onboard RS485 / Pico Hat Interfaces, with Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case
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#1 GAGNANT

  • Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz. Built in buzzer, RGB colorful LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the module
  • Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with superior RF performance. High quality relay, contact rating: ≤10A 250VAC/30VDC. Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors. Onboard USB Type-C port for power supply, firmware downloading and debugging
  • Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications. Onboard digital isolation to prevent interference from external signal
  • Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay. Rail-mounted ABS case, easy to install, safe to use
  • Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc. Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal
  • 43,99 € SUR AMAZON
Waveshare
Waveshare
Waveshare ESP32-S3-POE-ETH-8DI-8RO(PoE Network Port), Industrial 8-Ch ESP32-S3 WiFi Relay Module, Isolated RS485 Interface, Xtensa 32-Bit LX7 2Core Processor, Up to 240MHz, Multi Isolation Protection
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#2

  • PoE network port version, with built-in PoE module for PoE capability (compliant with IEEE 802.3af standard). Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz. Integrated 2.4GHz Wi-Fi and BT LE dual-mode wireless communication, with superior RF performance
  • High quality relay, contact rating: ≤10A 250V AC / 30V DC. Supports passive and active digital input, with bi-directional optocoupler isolation. The relay supports digital input linkage control
  • Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors. Onboard pin header, allowing access to other devices. Onboard USB Type-C port for power supply, firmware downloading and debugging
  • Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications. Onboard RTC chip, supports scheduled tasks. Onboard W5500 Ethernet chip for extending 10/100Mbps network port through SPI interface. Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay. Onboard digital isolation to prevent interference from external signal
  • Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal. Onboard TF card slot for external TF card storage of images and files. Built-in buzzer, RGB LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the devices. Rail-mounted ABS case, easy to install, safe to use
  • 69,99 € SUR AMAZON
Waveshare
Waveshare
Waveshare ESP32-S3-ETH-8DI-8RO(Common Network Port), Industrial 8-Ch ESP32-S3 WiFi Relay Module, Isolated RS485 Interface, Xtensa 32-Bit LX7 2-Core Processor, Up to 240MHz, Multi Isolation Protection
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#3

  • Common network port version. Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz. Integrated 2.4GHz Wi-Fi and BT LE dual-mode wireless communication, with superior RF performance
  • High quality relay, contact rating: ≤10A 250V AC / 30V DC. Supports passive and active digital input, with bi-directional optocoupler isolation. The relay supports digital input linkage control
  • Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors. Onboard pin header, allowing access to other devices. Onboard USB Type-C port for power supply, firmware downloading and debugging
  • Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications. Onboard RTC chip, supports scheduled tasks. Onboard W5500 Ethernet chip for extending 10/100Mbps network port through SPI interface. Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay. Onboard digital isolation to prevent interference from external signal
  • Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal. Onboard TF card slot for external TF card storage of images and files. Built-in buzzer, RGB LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the devices. Rail-mounted ABS case, easy to install, safe to use
  • 63,99 € SUR AMAZON
Waveshare
Waveshare
Waveshare ESP32-P4-WIFI6-Touch-LCD-4B(Version with Camera Interface, Without ETH Port/RS485/Relay), ESP32-P4 Smart 86 Box, ESP32-P4 Chip, 2-Core&1-Core RISC-V, Onboard 4inch 720x720 5Point Touch LCD
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#4

  • ESP32-P4-WIFI6-Touch-LCD-4B (support external camera) is powered by a high-performance MCU featuring a 32-bit dual-core and single-core RISC-V processor.
  • It includes 128KB HP ROM, 16KB LP ROM, 768KB HP L2MEM, 32KB LP SRAM, and 8KB TCM. The chip package incorporates 32MB PSRAM and is externally paired with 32MB Nor Flash.
  • Strong image and voice processing capabilities, with interfaces including a JPEG codec, Pixel Processing Accelerator (PPA), Image Signal Processor (ISP), and H.264 video encoder.
  • The board features commonly used peripheral interfaces such as MIPI-CSI, MIPI-DSI, USB 2.0 OTG, Ethernet, SDIO 3.0 Micro SD card slot, dual microphones with echo cancellation support, speaker terminals, and RTC batt terminals (specific interfaces vary by product; refer to the resource overview).
  • Supports secure boot, Flash encryption, hardware encryption accelerators, and hardware random number generators. It also features hardware access protection, enabling Access Permission Management (APM) and privilege separation.
  • 52,99 € SUR AMAZON
Wonrabai
Wonrabai
ESP32-P4 Smart 86 Box Development Board, Based on ESP32-P4 Controller, Onboard 4inch 720 x 720 Touch Display,Onboard Ethernet Port + RS485 + 2-CH Relay, Supports AI Voice Interaction
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#5

  • ESP32-P4 Smart 86 Box (Onboard Ethernet Port + RS485 + 2-CH Relay). Based On ESP32-P4 Controller With RISC-V 32-bit Dual-core And Single-core Processors, onboard 4inch 720 x 720 resolution IPS 5-point touch display. It features rich peripherals such as MIPI-CSI, MIPI-DSI, USB 2.0 OTG, Ethernet port, SDIO 3.0 TF card slot, dual microphones (support echo cancellation), speaker header and RTC ba-ttery header, etc.
  • High-performance MCU with RISC-V 32-bit dual-core and single-core processors, 128 KB HP ROM, 16 KB LP ROM, 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM. 32MB PSRAM in the chip's package, with onboard 32MB Nor Flash.
  • Supports AI Voice Interaction: Supports mainstream AI platforms and can be connected to online large model platforms such as Doubao, DeepSeek, ChatGPT and other AI models. Audio Input/Output: Onboard ES8311 audio codec chip and ES7210 echo cancellation circuit. Meet daily audio application scenarios.
  • Onboard RS485 Interface: Supports Automatic data transmission and reception, built-in power isolation, digital isolation, TVS and other protections. 2-Channel Relay: Onboard Optocoupler isolation, prevents the relay from being interfered by high-voltage circuit.
  • Relay Connection: Contact rating of the onboard relay up to 10A 250V AC / 30V DC. Directly controlling 220VAC home appliances, or devices below 30V DC. 100M RJ45 Ethernet Port: Supports 10/100M wired network communication.
  • It also integrates the Digital Signature Peripheral and a dedicated Key Management Unit, ensuring secure data and operations. Specifically designed for high-performance and high-security applications, to meet the higher requirements of embedded applications such as Human-Machine interaction, efficient edge computing, and IO expansion.
  • Security features: Secure Boot, Flash Encryption, cryptographic accelerators, and TRNG. Additionally, hardware access protection mechanisms help to enable Access Permission Management and Privilege Separation. Powerful image and voice processing capability. Provides image and voice processing interfaces including JPEG Codec, Pixel Processing Accelerator, Image Signal Processor, H264 encoder.
  • Comes with Online Tutorial Usage Guide and Online Development Resource, Please check: n9.cl/1h472
  • 62,39 € SUR AMAZON
Waveshare
Waveshare
Industriel 8-Ch ESP32-S3 WiFi Relais Module Intégré RS485, Entrée Numérique, Relais, Ethernet Port, et Circuits de Protection d'isolation, Supporte RS485 et Bluetooth/WiFi Télécommande
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#6

  • Industrial 8-Channel ESP32-S3 WiFi Relay Module, based on ESP32-S3 microcontroller, built-in 32-bit LX7 dual-core processor, up to 240MHz, integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication
  • Industrial 8-Ch WiFi Network Relay Module, onboard digital input, RS485, and ethernet port interfaces. Built-in multiple isolation protection circuits such as power isolation and optocoupler isolation, more safe, stable and reliable
  • Supports RS485 and Bluetooth / WIFi Remote Control, onboard 8-ch relays and 8-ch digital inputs, contact rating of the onboard relay up to 10A 250V AC / 30V DC, directly controlling 220VAC home appliances, or devices below 30V DC
  • Digital Input, supports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation
  • Supports Arduino IDE, comprehensive SDK, online development resources, tutorials, and technical support are provided, please feel free to contact us if you need
  • 66,06 € SUR AMAZON
Coolwell
Coolwell
ESP32-S3 WiFi Relay Module, Industrial 1-Channel Relay Controller with RS485 Interface, Bluetooth 5, DIN Rail Mount, 10A Relay Switch for Smart Home, IoT, Fits Arduino
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#7

  • ✔ Industrial-Grade ESP32-S3 Relay Module with Wi-Fi & Blue-tooth: Based on the ESP32-S3 dual-core processor, this Wi-Fi relay module integrates Bluetooth 5 and delivers AIoT-ready performance for smart home, automation, and industrial control projects.
  • ⚡ 1-Channel 10A Relay for High-Power Devices: Equipped with a high-quality 1-channel relay, supporting ≤10A 250VAC/30VDC, allowing you to safely control appliances, lights, motors, and industrial equipment via Wi-Fi relay switch or RS485 relay.
  • 🛡️ Multiple Isolation Protection Circuits for Reliability: Features opto-isolator protection, digital isolation, and power isolation to safeguard against high-voltage interference, making this industrial IoT relay safe, stable, and highly reliable.
  • 📶 RS485 Interface with Flexible Networking: Built-in isolated RS485 communication port, supporting Modbus and cascading with RS485 relay devices, ideal for industrial automation, data acquisition, and IoT gateway applications.
  • 🛠️ Easy Installation with DIN Rail Mount & Arduino Support: Comes with a rail-mounted protective case for quick installation in control cabinets. Supports Ar-duino programming, SDKs, and MQTT protocol for seamless IoT cloud integration and remote control.
  • 27,83 € SUR AMAZON
Waveshare
Waveshare
Waveshare Industrial 1-Channel ESP32-S3 WiFi Relay Module, Wi-FI/Bluetooth Support, Onboard RS485 Interface, Multiple Isolation Protection Circuits, Industrial-Grade Rail-Mount Enclosure
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#8

  • High-Performance ESP32-S3 Microcontroller: Powered by the ESP32-S3 microcontroller with a dual-core Xtensa 32-bit LX7 processor running at 240 MHz for efficient, high-speed performance.
  • Dual-Mode Wireless Communication: Supports both 2.4GHz Wi-Fi and Bluetooth 5 (LE) for seamless wireless connectivity, offering superior RF performance for reliable communication.
  • Industrial-Grade Relay & RS485 Interface: Features a high-quality relay with a contact rating of ≤10A 250VAC/30VDC, and an onboard isolated RS485 interface for connecting industrial Modbus modules or sensors.
  • Advanced Isolation & Protection Features: Equipped with onboard optocoupler and digital isolation to shield against high-voltage interference, ensuring stable operation in industrial environments.
  • Convenient Power and Debugging Options: Includes an onboard USB Type-C port for easy power supply, firmware downloading, and debugging, as well as a rail-mounted protective case for simple installation and enhanced safety. Rich WiKi Resources: We provide official Wiki resources, please contact us for more information.
  • 28,99 € SUR AMAZON
Générique
Générique
Module Relais Quatre Canaux Modbus RTU ESP32 DC7-24 V, Carte de Développement RS485, Protocole MODBUS, Carte Relais d'Isolation Optocoupleur
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#9

  • ESP32, avec Wi-Fi et Bluetooth, isolation par optocoupleur d'entrée et de sortie.
  • Équipé d'une puce de port série CH340 intégrée, d'une alimentation CC 7~24 V et d'une alimentation TYPE-C.
  • Prise en charge Modbus, interface RS485 intégrée.
  • Dimensions : 95 mm x 67 mm, poids : 85 g.
  • 25,47 € SUR AMAZON
Waveshare
Waveshare
Waveshare ESP32-P4-WIFI6-Touch-LCD-4B(Support External Camera), ESP32-P4 Smart 86 Box, Dual-Core & Single-Core RISC-V, with 4inch 720x720 Pixel 5Point Touch LCD (Without Ethernet Port, RS485, Relays)
Livraison gratuite
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64

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#10

  • ESP32-P4-WIFI6-Touch-LCD-4B (support external camera) is powered by a high-performance MCU featuring a 32-bit dual-core and single-core RISC-V processor (without Ethernet Port,RS485,and Relays)
  • It includes 128KB HP ROM, 16KB LP ROM, 768KB HP L2MEM, 32KB LP SRAM, and 8KB TCM. The chip package incorporates 32MB PSRAM and is externally paired with 32MB Nor Flash.
  • Strong image and voice processing capabilities, with interfaces including a JPEG codec, Pixel Processing Accelerator (PPA), Image Signal Processor (ISP), and H.264 video encoder.
  • The board features commonly used peripheral interfaces such as MIPI-CSI, MIPI-DSI, USB 2.0 OTG, Ethernet, SDIO 3.0 Micro SD card slot, dual microphones with echo cancellation support, speaker terminals, and RTC batt terminals (specific interfaces vary by product; refer to the resource overview).
  • Supports secure boot, Flash encryption, hardware encryption accelerators, and hardware random number generators. It also features hardware access protection, enabling Access Permission Management (APM) and privilege separation.
  • 52,99 € SUR AMAZON
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