Best Arduino Relay Breadboard of 2025

Last updated on 20/12/2025

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kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3

kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3

Easy installation and setup.
Compatible with multiple devices.
Real-time relay status display.

Main Highlights

USES: The kwmobile channel relay module can be used for the wireless automation of high voltage devices in your home. For example, you can switch on and off your LED lights, AC and more.
CONVENIENT: The two relay modules are already soldered to a breakout board for easy installation and use and is equipped with high current relay, AC250V 10A; DC30V 10A standard interface, which can be directly operated from the microcontroller.
LED DISPLAY: A display attached to the module allows you to check the relay output status. In addition, there is also optocoupler to regulate voltage outputs from one side so as not to damage components on the other side.
COMPATIBILITY: Made for Arduino, 8051, AVR, PIC,DSP, ARM, ARM, MSP430, TTL-Logik and more.
BASED IN EUROPE: kwmobile is at home in Germany. Since 2012 we offer you a wide range of accessories for your electronic devices.

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kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3

Easy installation and setup.
Compatible with multiple devices.
Real-time relay status display.

Main Highlights

USES: The kwmobile channel relay module can be used for the wireless automation of high voltage devices in your home. For example, you can switch on and off your LED lights, AC and more.
CONVENIENT: The two relay modules are already soldered to a breakout board for easy installation and use and is equipped with high current relay, AC250V 10A; DC30V 10A standard interface, which can be directly operated from the microcontroller.
LED DISPLAY: A display attached to the module allows you to check the relay output status. In addition, there is also optocoupler to regulate voltage outputs from one side so as not to damage components on the other side.
COMPATIBILITY: Made for Arduino, 8051, AVR, PIC,DSP, ARM, ARM, MSP430, TTL-Logik and more.
BASED IN EUROPE: kwmobile is at home in Germany. Since 2012 we offer you a wide range of accessories for your electronic devices.

Value for Money

ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

15% OffFree Shipping

Effortless device control potential.
Flexible relay configurations available.
Safe and reliable operation guaranteed.

Main Highlights

5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
GPIO Low-Level Logic Control: The module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
Safe and Reliable: The 8 channels are optically isolated, anti-interference, and widely used for all MCU control, industrial sector, PLC control, smart home control.

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ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

15% OffFree Shipping

Effortless device control potential.
Flexible relay configurations available.
Safe and reliable operation guaranteed.

Main Highlights

5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
GPIO Low-Level Logic Control: The module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
Safe and Reliable: The 8 channels are optically isolated, anti-interference, and widely used for all MCU control, industrial sector, PLC control, smart home control.

SEENGREAT 1-Channel Relay Board for Raspberry Pi, 3.3V/5V Relay Module with Optocoupler Isolation, Compatible with Raspberry Pi Zero/3B/4B, STM32, ESP32, Arduino

SEENGREAT 1-Channel Relay Board for Raspberry Pi, 3.3V/5V Relay Module with Optocoupler Isolation, Compatible with Raspberry Pi Zero/3B/4B, STM32, ESP32, Arduino

Versatile compatibility with multiple platforms.
Reliable isolation for stable operation.
High load capacity for automation.

Main Highlights

Versatile Compatibility: This 1-channel relay board is perfect for Raspberry Pi models including Zero, Zero W, Zero WH, 2B, 3B, 3B+, 4B, as well as for Arduino, STM32, ESP32 and other platforms. Ideal for a wide range of DIY electronics and automation projects.
Reliable Optocoupler Isolation for Raspberry Pi: Our Raspberry 1-channel relay board features advanced optocoupler isolation and level-shifting circuits. This ensures strong anti-interference capability and stable operation with both 3.3V and 5V systems, safeguarding your Pi from electrical noise.
High Load Capacity for Raspberry Pi Relay Module: The 1-channel relay board supports up to 10A at 250VAC/28VDC for the normally open (NO) contact, and 5A at 250VAC for both NO and normally closed (NC) contacts. This makes it ideal for high-power applications and automation tasks with for your Raspberry Pi or Arduino.
Easy Relay Status Monitoring: Equipped with a relay operation indicator LED, this Pi relay board provides clear visual feedback on the relay status. This feature makes it simple to monitor the relay's operation, ensuring your Raspberry Pi automation projects run smoothly.
Open-source Example Programs for Raspberry Pi and Arduino: Our 1-channel relay module includes open-source example programs designed specifically for Raspberry Pi and Arduino development boards. These resources make integrating the relay board into your projects effortless and quick.

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SEENGREAT 1-Channel Relay Board for Raspberry Pi, 3.3V/5V Relay Module with Optocoupler Isolation, Compatible with Raspberry Pi Zero/3B/4B, STM32, ESP32, Arduino

Versatile compatibility with multiple platforms.
Reliable isolation for stable operation.
High load capacity for automation.

Main Highlights

Versatile Compatibility: This 1-channel relay board is perfect for Raspberry Pi models including Zero, Zero W, Zero WH, 2B, 3B, 3B+, 4B, as well as for Arduino, STM32, ESP32 and other platforms. Ideal for a wide range of DIY electronics and automation projects.
Reliable Optocoupler Isolation for Raspberry Pi: Our Raspberry 1-channel relay board features advanced optocoupler isolation and level-shifting circuits. This ensures strong anti-interference capability and stable operation with both 3.3V and 5V systems, safeguarding your Pi from electrical noise.
High Load Capacity for Raspberry Pi Relay Module: The 1-channel relay board supports up to 10A at 250VAC/28VDC for the normally open (NO) contact, and 5A at 250VAC for both NO and normally closed (NC) contacts. This makes it ideal for high-power applications and automation tasks with for your Raspberry Pi or Arduino.
Easy Relay Status Monitoring: Equipped with a relay operation indicator LED, this Pi relay board provides clear visual feedback on the relay status. This feature makes it simple to monitor the relay's operation, ensuring your Raspberry Pi automation projects run smoothly.
Open-source Example Programs for Raspberry Pi and Arduino: Our 1-channel relay module includes open-source example programs designed specifically for Raspberry Pi and Arduino development boards. These resources make integrating the relay board into your projects effortless and quick.

Yizhet 5V 8 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Yizhet 5V 8 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Durable hard PCB construction.
Directly compatible with microcontrollers.
Indication LED for status monitoring.

Main Highlights

New 5V relay module, 8 Channel, Material: Durable hard PCB.
DC 5V 8 Channel Relay interface board, and each one needs 15-20mA Driver Current.
5v 8 channel relay module equiped with high-current relay, AC250V 10A; DC30V 10A.
Standard interface that can be controlled directly by microcontroller such as Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, PLC, TTL logic
8 channel relay module with indication LED's for Relay output status.

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Yizhet 5V 8 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Durable hard PCB construction.
Directly compatible with microcontrollers.
Indication LED for status monitoring.

Main Highlights

New 5V relay module, 8 Channel, Material: Durable hard PCB.
DC 5V 8 Channel Relay interface board, and each one needs 15-20mA Driver Current.
5v 8 channel relay module equiped with high-current relay, AC250V 10A; DC30V 10A.
Standard interface that can be controlled directly by microcontroller such as Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, PLC, TTL logic
8 channel relay module with indication LED's for Relay output status.

SUNFOUNDER Electronics Fun Kit with 1602 LCD Module, Breadboard, LED, Resistor for Arduino UNO Mega Gold Raspberry Pi

SUNFOUNDER Electronics Fun Kit with 1602 LCD Module, Breadboard, LED, Resistor for Arduino UNO Mega Gold Raspberry Pi

Comprehensive Arduino/Raspberry Pi kit.
Tutorials accelerate learning process.
Excellent compact storage provided.

Main Highlights

Starter Kit for Arduino or Raspberry Pi - Our starter kit contains over 300 components you need to get started in Arduino or Raspberry Pi programming
Most Expensive Component Kit - Package includes 400 point mockup, 1602 LCD display, servo motors, link wires, DuPont wires, color LCD display and resistors, capacitors, relay, USB cable, horns etc.
21 Lessons on offer - An improved fun electronic kit contains over 20 interesting lessons that will give you a dynamic and creative learning experience
Detailed Instructions - With the detailed PDF tutorial on the CD, you can learn how to code and program faster and easier with all components
GREAT PACKAGING - A nice compact storage container to store all the components of the kit without losing them

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SUNFOUNDER Electronics Fun Kit with 1602 LCD Module, Breadboard, LED, Resistor for Arduino UNO Mega Gold Raspberry Pi

Comprehensive Arduino/Raspberry Pi kit.
Tutorials accelerate learning process.
Excellent compact storage provided.

Main Highlights

Starter Kit for Arduino or Raspberry Pi - Our starter kit contains over 300 components you need to get started in Arduino or Raspberry Pi programming
Most Expensive Component Kit - Package includes 400 point mockup, 1602 LCD display, servo motors, link wires, DuPont wires, color LCD display and resistors, capacitors, relay, USB cable, horns etc.
21 Lessons on offer - An improved fun electronic kit contains over 20 interesting lessons that will give you a dynamic and creative learning experience
Detailed Instructions - With the detailed PDF tutorial on the CD, you can learn how to code and program faster and easier with all components
GREAT PACKAGING - A nice compact storage container to store all the components of the kit without losing them

Yizhet 5V 2 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Yizhet 5V 2 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Durable hard PCB construction.
High-current relay capabilities.
Easy microcontroller compatibility.

Main Highlights

New 5V Relay Module, 2 Channel, Material: Durable hard PCB.
DC5V 2 Channel Relay interface board, and each one needs 15-20mA Driver Current.
Relay board equiped with high-current relay, AC250V 10A; DC30V 10A.
Standard interface that can be controlled directly by microcontroller such as Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, PLC, TTL logic.
Dual relay with indication LED's for Relay output status.

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Yizhet 5V 2 Channel-Relay, DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi Arduino PIC AVR MCU DSP ARM TTL Logic

Durable hard PCB construction.
High-current relay capabilities.
Easy microcontroller compatibility.

Main Highlights

New 5V Relay Module, 2 Channel, Material: Durable hard PCB.
DC5V 2 Channel Relay interface board, and each one needs 15-20mA Driver Current.
Relay board equiped with high-current relay, AC250V 10A; DC30V 10A.
Standard interface that can be controlled directly by microcontroller such as Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, PLC, TTL logic.
Dual relay with indication LED's for Relay output status.

Garosa Universal 4 Key Push Button Switch Module, 4 Channel Relay Control Board with Momentary Toggle Switch for DIY Electronics Projects, compatible with Arduino

Garosa Universal 4 Key Push Button Switch Module, 4 Channel Relay Control Board with Momentary Toggle Switch for DIY Electronics Projects, compatible with Arduino

High quality electronic components.
Durable and long-lasting design.
Perfect for various microcontrollers.

Main Highlights

brand new and high quality
GND K1 K2 K3 K4" 4 PIN OUT 2.54mm
Can be inserted directly into due,Ideal for linking up to your Mini Nano Breadboard banana pi etc,or others MCU PLD CPU ( AVR STM32 ARM PIC C51 NRF24LE1 CC2530 MSP430 STM8 FPGA CPLD etc.)
4-button Common Cathode key module(When pressed output low level)
Adopted of high quality electronic components, and precision process, ensure for the durability

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Garosa Universal 4 Key Push Button Switch Module, 4 Channel Relay Control Board with Momentary Toggle Switch for DIY Electronics Projects, compatible with Arduino

High quality electronic components.
Durable and long-lasting design.
Perfect for various microcontrollers.

Main Highlights

brand new and high quality
GND K1 K2 K3 K4" 4 PIN OUT 2.54mm
Can be inserted directly into due,Ideal for linking up to your Mini Nano Breadboard banana pi etc,or others MCU PLD CPU ( AVR STM32 ARM PIC C51 NRF24LE1 CC2530 MSP430 STM8 FPGA CPLD etc.)
4-button Common Cathode key module(When pressed output low level)
Adopted of high quality electronic components, and precision process, ensure for the durability

ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

15% OffFree Shipping

Versatile compatibility with microcontrollers.
Ideal for smart home applications.
Clear indicators for safe operation.

Main Highlights

5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
GPIO Low-Level Logic Control: This 4-channel relay module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control.

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ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

15% OffFree Shipping

Versatile compatibility with microcontrollers.
Ideal for smart home applications.
Clear indicators for safe operation.

Main Highlights

5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
GPIO Low-Level Logic Control: This 4-channel relay module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control.

VooGenzek 5 PCS 5V KF301 1-Channel Relay Module Board Shield Low Level Trigger for PIC AVR DSP ARM MCU Compatible with Arduino, with LED Indicator

VooGenzek 5 PCS 5V KF301 1-Channel Relay Module Board Shield Low Level Trigger for PIC AVR DSP ARM MCU Compatible with Arduino, with LED Indicator

Controls various electronic devices.
High output drive capacity.
Versatile for IoT projects.

Main Highlights

Product Function: The relay module KF301 is used to control AC circuits and switches them ON or OFF. It's an electrical switch that responds to the signal received from the microcontroller (like in Arduino or Raspberry Pi).
Output Drive Capacity: 10A 250V AC, 10A 125V AC, 10A 30V DC, 10A 28V DC. Operating Ovltage: 5V/12V.
Design Advantage: Diodes drives to increase the relay coil.
The relay can be used not only as a single-chip development board module, but also as a home appliance controller.
Wide Applications: It is often used in IoT projects to control lights and other electronic devices, such as remote controls, communication, mechatronic devices, powerful electronics devices, etc.

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VooGenzek 5 PCS 5V KF301 1-Channel Relay Module Board Shield Low Level Trigger for PIC AVR DSP ARM MCU Compatible with Arduino, with LED Indicator

Controls various electronic devices.
High output drive capacity.
Versatile for IoT projects.

Main Highlights

Product Function: The relay module KF301 is used to control AC circuits and switches them ON or OFF. It's an electrical switch that responds to the signal received from the microcontroller (like in Arduino or Raspberry Pi).
Output Drive Capacity: 10A 250V AC, 10A 125V AC, 10A 30V DC, 10A 28V DC. Operating Ovltage: 5V/12V.
Design Advantage: Diodes drives to increase the relay coil.
The relay can be used not only as a single-chip development board module, but also as a home appliance controller.
Wide Applications: It is often used in IoT projects to control lights and other electronic devices, such as remote controls, communication, mechatronic devices, powerful electronics devices, etc.

DollaTek 8 Channel 5V DC Relay Module Expansion Board for Arduino Raspberry Pi DSP AVR PIC ARM

DollaTek 8 Channel 5V DC Relay Module Expansion Board for Arduino Raspberry Pi DSP AVR PIC ARM

High-current relays for versatility.
Supports multiple microcontroller interfaces.
Indication LEDs for easy monitoring.

Main Highlights

5V 8-Channel Relay interface board, and each one needs 15-20mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Application：Supports all MCU control, The industrial field, PLC control, Smart home control
Indication LED's for Relay output status

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DollaTek 8 Channel 5V DC Relay Module Expansion Board for Arduino Raspberry Pi DSP AVR PIC ARM

High-current relays for versatility.
Supports multiple microcontroller interfaces.
Indication LEDs for easy monitoring.

Main Highlights

5V 8-Channel Relay interface board, and each one needs 15-20mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Application：Supports all MCU control, The industrial field, PLC control, Smart home control
Indication LED's for Relay output status

We scanned 817 products

We reviewed these offers relevant to the Arduino Relay Breadboard within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like kwmobile, ELEGOO, SEENGREAT, Yizhet, SUNFOUNDER, Garosa, VooGenzek, DollaTek, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Arduino Relay Breadboard in the market, we considered we took a deep dive into 4086 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3. We love many things about this product by kwmobile. What sets it apart from the competition is Easy installation and setup. , Compatible with multiple devices. , Real-time relay status display. .
The best value product for most shoppers and where user satisfaction is continuously the highest is ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi by ELEGOO based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Arduino Relay Breadboard and the best cost-to-value ratio is ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Piat ELEGOO with a 15% discount.
Our list of the best Arduino Relay Breadboard is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.