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Today's Deals
Best Arduino Relay Breadboard of 2026
Last updated on 25/04/2026
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1
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
15% Off
Limited time deal
Why we love it
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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9.7
Exceptional
Limited time deal
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9.7
Exceptional
ELEGOO
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% Off
Limited time deal
Check Price
Show More
Why we love it
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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Value for Money
2
ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
ELEGOO
Why we love it
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.
Show More
9.6
Superb
Check Price
9.6
Superb
ELEGOO
ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
Check Price
Show More
Why we love it
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.
Show More
3
RUNCCI-YUN 5pcs Relay Module DC 5V 1 Channel Relay Board RUNCCI-YUN with Optocoupler Isolation Support High or Low Level Trigger for Arduino
RUNCCI-YUN
Why we love it
Easy 5V control.
Optocoupler isolation protects IO.
Wide compatibility with devices.
Main Highlights
✔【5V 1-Channel Relay Module】- This relay board provides a single relay that can be controlled via any 5V digital output on your microcontroller.
✔【Main Specifications】- Peak load of the normally open terminal: AC 125-250V/10A, DC 28-30V/10A; Trigger current: 5mA; Module operating voltage: 12V; 4pcs x 3.1mm fixed bolt hole.
✔【SMD Optocoupler Isolation & Jumper Set】- The isolation circuit prevents damage to the I/O port from relay switching current. The module includes a jumper, allowing you to set the device state to high or low depending on the signal condition. It has screw terminals for relay (NC, C, NO) and input; coil +, coil -, and trigger.
✔【Wide Application】- This 5V relay board works well with ARM/PIC/AVR/MCU/Raspberry Pi/CNC machines/PS4, etc.
✔【User-Friendly Interface Design】- All interfaces can be wired directly via the terminals. Fault-tolerant design; even if the control line is interrupted, the relay will not operate.
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9.6
Superb
Check Price
9.6
Superb
RUNCCI-YUN
RUNCCI-YUN 5pcs Relay Module DC 5V 1 Channel Relay Board RUNCCI-YUN with Optocoupler Isolation Support High or Low Level Trigger for Arduino
Check Price
Show More
Why we love it
Easy 5V control.
Optocoupler isolation protects IO.
Wide compatibility with devices.
Main Highlights
✔【5V 1-Channel Relay Module】- This relay board provides a single relay that can be controlled via any 5V digital output on your microcontroller.
✔【Main Specifications】- Peak load of the normally open terminal: AC 125-250V/10A, DC 28-30V/10A; Trigger current: 5mA; Module operating voltage: 12V; 4pcs x 3.1mm fixed bolt hole.
✔【SMD Optocoupler Isolation & Jumper Set】- The isolation circuit prevents damage to the I/O port from relay switching current. The module includes a jumper, allowing you to set the device state to high or low depending on the signal condition. It has screw terminals for relay (NC, C, NO) and input; coil +, coil -, and trigger.
✔【Wide Application】- This 5V relay board works well with ARM/PIC/AVR/MCU/Raspberry Pi/CNC machines/PS4, etc.
✔【User-Friendly Interface Design】- All interfaces can be wired directly via the terminals. Fault-tolerant design; even if the control line is interrupted, the relay will not operate.
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4
kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3
kwmobile
Why we love it
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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9.5
Superb
Check Price
9.5
Superb
kwmobile
kwmobile 2 Channel Relay Module - 5V Relay Board for Arduino Raspberry Pi with Optocoupler - Pack of 3
Check Price
Show More
Why we love it
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.
Show More
5
Arduino 4 Relays Shield [A000110] - 4-Channel Relay Module, 5V Control, 10A Rating, Opto-Isolated, Supports AC/DC Loads, Compatible with Arduino IDE for Automation and Control Projects
Arduino
Why we love it
Control multiple devices effortlessly.
Seamless integration with Arduino boards.
Safety features protect your electronics.
Main Highlights
4-Channel Relay Control: The Arduino 4 Relays Shield allows you to control up to 4 independent relays, enabling you to switch high-voltage devices (AC or DC) with your Arduino for home automation, robotics, and control applications.
5V Control Voltage: Designed to operate at a 5V control voltage, this shield is perfect for direct integration with Arduino boards like the Uno, Mega, or Leonardo, ensuring seamless communication and control.
High Current Switching: Each relay is rated for 10A at 250V AC or 30V DC, providing ample power for controlling a wide range of devices, including lights, motors, pumps, and other high-power equipment.
Opto-Isolated for Safety: The relays are opto-isolated to protect your Arduino board and other sensitive electronics from voltage spikes and electrical noise when switching high-power loads.
Fully Compatible with Arduino IDE: Easily integrate the shield with your Arduino projects using the Arduino IDE, with available libraries and examples to get your relay-controlled systems up and running quickly.
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9.5
Superb
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9.5
Superb
Arduino
Arduino 4 Relays Shield [A000110] - 4-Channel Relay Module, 5V Control, 10A Rating, Opto-Isolated, Supports AC/DC Loads, Compatible with Arduino IDE for Automation and Control Projects
Check Price
Show More
Why we love it
Control multiple devices effortlessly.
Seamless integration with Arduino boards.
Safety features protect your electronics.
Main Highlights
4-Channel Relay Control: The Arduino 4 Relays Shield allows you to control up to 4 independent relays, enabling you to switch high-voltage devices (AC or DC) with your Arduino for home automation, robotics, and control applications.
5V Control Voltage: Designed to operate at a 5V control voltage, this shield is perfect for direct integration with Arduino boards like the Uno, Mega, or Leonardo, ensuring seamless communication and control.
High Current Switching: Each relay is rated for 10A at 250V AC or 30V DC, providing ample power for controlling a wide range of devices, including lights, motors, pumps, and other high-power equipment.
Opto-Isolated for Safety: The relays are opto-isolated to protect your Arduino board and other sensitive electronics from voltage spikes and electrical noise when switching high-power loads.
Fully Compatible with Arduino IDE: Easily integrate the shield with your Arduino projects using the Arduino IDE, with available libraries and examples to get your relay-controlled systems up and running quickly.
Show More
6
WINGONEER 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for arduino Relay
WINGONEER
Why we love it
Versatile for various projects.
Easy to integrate with Arduino.
High-quality, brand new modules.
Main Highlights
Name:Arduino kits module
5V relay module 1 way relay module ARDUINO
New 5V relay module
This product contains 5 modules
100% brand new
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9.3
Superb
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9.3
Superb
WINGONEER
WINGONEER 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for arduino Relay
Check Price
Show More
Why we love it
Versatile for various projects.
Easy to integrate with Arduino.
High-quality, brand new modules.
Main Highlights
Name:Arduino kits module
5V relay module 1 way relay module ARDUINO
New 5V relay module
This product contains 5 modules
100% brand new
Show More
7
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
Why we love it
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.
Show More
9.1
Superb
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9.1
Superb
VooGenzek
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
Check Price
Show More
Why we love it
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.
Show More
8
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
Why we love it
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.
Show More
9.1
Superb
Check Price
9.1
Superb
Yizhet
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
Check Price
Show More
Why we love it
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.
Show More
9
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
Why we love it
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
Show More
8.9
Excellent
Check Price
8.9
Excellent
Garosa
Garosa Universal 4 Key Push Button Switch Module, 4 Channel Relay Control Board with Momentary Toggle Switch for DIY Electronics Projects, compatible with Arduino
Check Price
Show More
Why we love it
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
Show More
10
VooGenzek 5 PCS 5V 1-Channel Relay Module Board Shield High Level Trigger for PIC AVR DSP ARM Compatible with Arduino
VooGenzek
Why we love it
Controls AC circuits effectively.
Supports IoT project integration.
Prevents false relay actions.
Main Highlights
Product Function: The relay module 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.
Design Advantage: 8050 Triode drives to increase the relay coil. The control pin has a pull down circuit to prevent the false action of the suspended relay.
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.
Show More
8.8
Excellent
Check Price
8.8
Excellent
VooGenzek
VooGenzek 5 PCS 5V 1-Channel Relay Module Board Shield High Level Trigger for PIC AVR DSP ARM Compatible with Arduino
Check Price
Show More
Why we love it
Controls AC circuits effectively.
Supports IoT project integration.
Prevents false relay actions.
Main Highlights
Product Function: The relay module 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.
Design Advantage: 8050 Triode drives to increase the relay coil. The control pin has a pull down circuit to prevent the false action of the suspended relay.
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.
Show More
![Arduino 4 Relays Shield [A000110] - 4-Channel Relay Module, 5V Control, 10A Rating, Opto-Isolated, Supports AC/DC Loads, Compatible with Arduino IDE for Automation and Control Projects](https://m.media-amazon.com/images/I/41VWgkcgkaL._SL160_.jpg)
