The Best Esp32 Relay Board of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Esp32 Relay Board of 2025. Check our ranking below.
2,786 Reviews Scanned
Rank No. #1
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 8 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino
- Programmable Relay Module 8 Channel with ESP32 BLE Development Board for Smart Home Control Secondary Development Projects DC5-30V
- The on board ESP32-WROOM-32E module with large capacity 4M Byte Flash, supports the use of development tools and provide reference programs in the development environment.
- On board 8 circuit 5V relay, output switch , suitable for controlling loads with working voltage within AC 250V and DC 30V.
- The I/O ports and UART program download ports of the ESP32 module are all exported, making it convenient for secondary development.
- On board ESP32 module programmable buttons and reset buttons, on board 1 programmable LED and relay indicator light.
Rank No. #2
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V
- ESP32 Development Board--Onboard mature and stable ESP32 module, with large capacity 4M Byte Flash, for use.
- All I/O ports and UART program download ports of the WIFI module are connected for easy secondary development
- Onboard AC-DC switching power module, supporting AC90-250V/DC7-30V/5V power supply mode;On board WIFI module RST reset button;
- ESP32-WROOM-32E supports the use of development tools such as ECLIPSE/ARDUINO IDE, providing reference programs in the ARDUINO development environment;
- Onboard 4-channel 5V relays, outputting switch signals, suitable for controlling loads with operating voltages up to AC250V/Dc30V;Onboard power indicator light, 1 programmable LED and relay indicator light.
Rank No. #3
Waveshare Industrial 6-Channel ESP32-S3 WiFi Relay Module, Supports WiFi/Bluetooth/RS485 Control, Onboard RS485 / Pico HAT Interfaces, with Multiple Isolation Protection Circuits
- 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 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 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc.
- 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
Rank No. #4
Industrial 8-Ch ESP32-S3 WiFi Relay Module, Onboard RS485, Digital Input, Relay, Ethernet Port and Multiple Isolation Protection Circuits, Supports RS485 and Bluetooth/WiFi Remote Control
- 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
Rank No. #5
2pcs AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 8 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino
- Programmable Relay Module 8 Channel with ESP32 BLE Development Board for Smart Home Control Secondary Development Projects DC5-30V
- The on board ESP32-WROOM-32E module with large capacity 4M Byte Flash, supports the use of development tools and provide reference programs in the development environment.
- On board 8 circuit 5V relay, output switch , suitable for controlling loads with working voltage within AC 250V and DC 30V.
- The I/O ports and UART program download ports of the ESP32 module are all exported, making it convenient for secondary development.
- On board ESP32 module programmable buttons and reset buttons, on board 1 programmable LED and relay indicator light.
Rank No. #6
DORHEA ESP32 WiFi 4 Channel Relay Module ESP32-WROOM-32E 4 Channel Development Board AC/DC Power Supply Switch Controller Board for Arduino Smart Home Wireless Control
- AC-DC switching power supply module, output switch signals, the power supply mode supports AC220V/DC5-30V
- ESP32-WROOM-32E WiFi module, large capacity 4M byte flash
- ESP32 32E WIFI relay module WiFi module RST reset button and a programmable button
- The I/O port of the WIFI module and the UART program download port are led out for secondary development
- ESP32 wireless WIFI 4 channel relay module WIFI module with 1 programmable LED and relay indicator onboard
Rank No. #7
2 Channel 5V Relay Module ESP 32 4M Byte Flash Large Capacity Programmable Relay Board for Secondary Development Learning DC5-60V
- Mature and Stable Module: This module supports I/O port as well as UART program download port all pinout, programmable keys and reset keys, mature and stable.
- : The relay board is equipped with and BLE modules
- Output Switching : This relay board contains 2 way 5V relay with output switching , suitable for controlling loads with operating voltage of AC250V or DC30V or less.
- Large Capacity: This relay module has a large enough capacity of 4M, you can use it with the actual situation.
- Applicable Scenario: This relay module is suitable for secondary development learning, smart home, control, etc. If you have related needs then this one is suitable for you.
Rank No. #8
Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5)
- Original Songle Relay
- 30VDC 250VAC Load：The power switch is compatible with 10A 250VAC and 10A 30VDC load.
- Optocoupler Isolator:3V/3.3V power relay module supports photocoupler isolation control.
Rank No. #9
16 Channel Relay Module, -WROOM-32E WiFi BLE DC 5-12V Input 16 Relay Output Board for Smart Home Automation IoT Control and Secondary Development
- Integrated -WROOM-32E Module: Features a built-in -WROOM-32E module with 4M Byte Flash memory for stable performance. All I/O ports and UART programming ports are accessible, simplifying customization and secondary development for IoT applications. Supports WiFi and BLE connectivity for wireless projects.
- Flexible Power Supply: Onboard circuit converts DC 5-12V input to 3.3V, accommodating batteries, adapters, or direct sources. This versatility suits diverse setups like smart home systems or industrial controls without external converters.
- Control And Programming Buttons: Includes RST reset and IO0 programmable buttons for easy device management. Streamlines coding adjustments and user interactions during IoT automation or development tasks.
- Broad Development Compatibility: Works with IDE tools for seamless coding. Utilize existing libraries and reference programs to accelerate smart home projects, lighting control, or appliance management applications.
- Multi-Channel Switching Capacity: Sixteen 5V relays handle loads up to AC 250V or DC 30V per channel. Ideal for managing multiple devices in automation setups, such as HVAC systems, security controls, or DIY electronics.
Rank No. #10
ESP32 Relay Board 2 Channel 5V Relay Module with WiFi Bluetooth 4MB Flash Programmable Button Indicator Light for Arduino Smart Home IoT Projects
- Powerful ESP32 Module: This AC powered ESP32 relay board features the robust ESP32-32E WiFi & BLE 4.2 module with a massive 4MB flash memory, ensuring stable performance for your smart home applications and A rduino projects. With dual-channel capability, it can seamlessly control devices with AC 250V or DC 30V, making it the perfect solution for diverse relay switch tasks.
- Ease of Development: Our ESP32 relay module's I/O pins and UART programming port are all easily accessible, allowing for hassle-free secondary development. The built-in programmable button and reset switch simplify setup and coding, empowering developers to create innovative projects with ease using A rduino IDE or other development tools.
- Versatile Power Supply: This relay board is equipped with an AC-DC switching power supply module, supporting voltage from AC 90V to 250V. Whether for home automation or educational purposes, this ESP32 relay module meets various power requirements, ensuring flexibility in deployment.
- Smart Indicators: Monitor your project's status effortlessly with the onboard LED and two relay indicator lights. These visual signals provide real-time feedback on the operation of your Dual 5V relay module, enabling quick troubleshooting and optimal performance in smart home systems.
- Easy Setup: Simple installation steps ensure a seamless transition to innovative programming. Enjoy the benefits of rapid prototyping and smart home automation with our expertly designed relay board.
Last update on 2026-05-14 / Affiliate links / Images from Amazon Product Advertising API
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- Specifications: How powerful they are can be measured.
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