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Today's Deals
Best Arduino Relay Breadboard of 2026
Last updated on 23/02/2026
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1
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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9.7
Exceptional
Check Price
9.7
Exceptional
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.
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Value for Money
2
Miuzei Starter Kit for Arduino R3 projects without microcontroller, 235 components with 58 lessons, LC display, breadboard, sensors, relays, GPIO extension, Compatible with Arduino/Raspberry Pi
Miuzei
Why we love it
Offers extensive DIY learning resources.
All-inclusive kit with crucial components.
Enhances future soldering projects.
Main Highlights
More than 235 components (microcontroller board not included), DIY projects for learning how to and programming with Arduino and Raspberry Pi.
Contains important components such as LC display 1602, resistors, LEDs, sensors, relays, breadboard, power supply module, GPIO extension, etc.
The components are already soldered, and all modules can be connected using a pin header. The three "double-sided PCB boards" can be used to your further projects that require soldering.
The 58 Lessons include 26 Arduino lessons and 32 Raspberry Pi lessons (instructions in English). Product Tutorial: http://geekdiywiki.com/miuzei
High-quality box with electrostatic bags, you can put everything you don't need in it.
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9.6
Superb
Check Price
9.6
Superb
Miuzei
Miuzei Starter Kit for Arduino R3 projects without microcontroller, 235 components with 58 lessons, LC display, breadboard, sensors, relays, GPIO extension, Compatible with Arduino/Raspberry Pi
Check Price
Show More
Why we love it
Offers extensive DIY learning resources.
All-inclusive kit with crucial components.
Enhances future soldering projects.
Main Highlights
More than 235 components (microcontroller board not included), DIY projects for learning how to and programming with Arduino and Raspberry Pi.
Contains important components such as LC display 1602, resistors, LEDs, sensors, relays, breadboard, power supply module, GPIO extension, etc.
The components are already soldered, and all modules can be connected using a pin header. The three "double-sided PCB boards" can be used to your further projects that require soldering.
The 58 Lessons include 26 Arduino lessons and 32 Raspberry Pi lessons (instructions in English). Product Tutorial: http://geekdiywiki.com/miuzei
High-quality box with electrostatic bags, you can put everything you don't need in it.
Show More
3
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
9% Off
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.
Show More
9.6
Superb
Check Price
9.6
Superb
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
9% Off
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.
Show More
4
Desiumite 85 Piece Electronic Components Kit for Arduino For V3.0 For Mega 2560 328 Project Starter with For Relay Sensor Display and Breadboard Compatible with
Desiumite
Main Highlights
For Relay Module And PIR Motion Sensor Set: 85pcs electronics kit includes 1-channel For relay module, PIR motion sensor, HC-SR04 distance sensor, and humidity sensor, soil moisture sensor, joystick module, 4-digit digital tube, 0.96 inch screen, 1602 liquid For crystal display module, For SG90 9G motor, breadboards, resistors, diodes, and male to female cables for Arduino For V3.0, For Mega 2560, and For Mega 328 projects
Project Compatibility: Designed for use with For Arduino , For Mega 2560, and For Mega 328 microcontrollers providing reliable integration for DIY electronics, automation systems, and educational experiments requiring digital input output control and sensor
PIR Motion Detection And For Relay Control: Passive infrared sensor detects human body movement for automated or alarm triggers while the 5V For relay module enables switching of home appliances through microcontroller signals with clear LED indicators for current flow and For relay activation status
Enhanced Sensor Integration: Features multiple functional modules including obstacle avoidance, touch sensing (TTP223B), infrared detection, and analog signal output from joystick and soil moisture sensors enabling diverse applications in robotics, , and interactive displays
Quality Construction And Learning Support: Built with long lasting electronic components and tested circuit designs to avoid common issues like malfunctioning sample code or outdated hardware often found in general module kits; all parts are compatible with standard breadboards and support widely available libraries such as Adafruit_GFX, Adafruit_SSD1306, and LiquidCrystal_I2C
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9.5
Superb
Check Price
9.5
Superb
Desiumite
Desiumite 85 Piece Electronic Components Kit for Arduino For V3.0 For Mega 2560 328 Project Starter with For Relay Sensor Display and Breadboard Compatible with
Check Price
Show More
Main Highlights
For Relay Module And PIR Motion Sensor Set: 85pcs electronics kit includes 1-channel For relay module, PIR motion sensor, HC-SR04 distance sensor, and humidity sensor, soil moisture sensor, joystick module, 4-digit digital tube, 0.96 inch screen, 1602 liquid For crystal display module, For SG90 9G motor, breadboards, resistors, diodes, and male to female cables for Arduino For V3.0, For Mega 2560, and For Mega 328 projects
Project Compatibility: Designed for use with For Arduino , For Mega 2560, and For Mega 328 microcontrollers providing reliable integration for DIY electronics, automation systems, and educational experiments requiring digital input output control and sensor
PIR Motion Detection And For Relay Control: Passive infrared sensor detects human body movement for automated or alarm triggers while the 5V For relay module enables switching of home appliances through microcontroller signals with clear LED indicators for current flow and For relay activation status
Enhanced Sensor Integration: Features multiple functional modules including obstacle avoidance, touch sensing (TTP223B), infrared detection, and analog signal output from joystick and soil moisture sensors enabling diverse applications in robotics, , and interactive displays
Quality Construction And Learning Support: Built with long lasting electronic components and tested circuit designs to avoid common issues like malfunctioning sample code or outdated hardware often found in general module kits; all parts are compatible with standard breadboards and support widely available libraries such as Adafruit_GFX, Adafruit_SSD1306, and LiquidCrystal_I2C
Show More
5
Single-Channel Relay Module for Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino – 3.3V/5V Relay Expansion Board with Optocoupler Isolation & LED Indicator – Fits Raspberry Pi One Channel Relay
xicoolee
Why we love it
Versatile for various projects.
Enhanced signal integrity guaranteed.
Reliable switching for electrical devices.
Main Highlights
Versatile Compatibility – This for Raspberry Pi single-channel relay board fits Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B, STM32, ESP32, and Arduino, making it ideal for various IoT, home automation, and robotics projects.
Onboard Optocoupler Isolation – Equipped with an optocoupler isolation circuit for enhanced signal integrity, ensuring stable operation in 3.3V or 5V systems with strong anti-interference capability.
High Load Capacity – The relay can handle up to 10A at 250VAC/28VDC (Normally Open) and 5A at 250VAC (Normally Closed), providing reliable switching for a wide range of electrical devices.
LED Status Indicator – Easily monitor relay operation with the built-in LED indicator, allowing quick verification of the relay status during operation.
Open-source Programming Support – Compatible with Raspberry Pi and Arduino development boards, with readily available open-source example programs for effortless integration into your projects.
Show More
9.5
Superb
Check Price
9.5
Superb
xicoolee
Single-Channel Relay Module for Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino – 3.3V/5V Relay Expansion Board with Optocoupler Isolation & LED Indicator – Fits Raspberry Pi One Channel Relay
Check Price
Show More
Why we love it
Versatile for various projects.
Enhanced signal integrity guaranteed.
Reliable switching for electrical devices.
Main Highlights
Versatile Compatibility – This for Raspberry Pi single-channel relay board fits Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B, STM32, ESP32, and Arduino, making it ideal for various IoT, home automation, and robotics projects.
Onboard Optocoupler Isolation – Equipped with an optocoupler isolation circuit for enhanced signal integrity, ensuring stable operation in 3.3V or 5V systems with strong anti-interference capability.
High Load Capacity – The relay can handle up to 10A at 250VAC/28VDC (Normally Open) and 5A at 250VAC (Normally Closed), providing reliable switching for a wide range of electrical devices.
LED Status Indicator – Easily monitor relay operation with the built-in LED indicator, allowing quick verification of the relay status during operation.
Open-source Programming Support – Compatible with Raspberry Pi and Arduino development boards, with readily available open-source example programs for effortless integration into your projects.
Show More
6
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
9.3
Superb
Check Price
9.3
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
7
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
9.1
Superb
Check Price
9.1
Superb
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
8
DollaTek 5PCS KY-019 5V One Channel Relay Module Board Shield For PIC AVR DSP ARM for arduino Relay
DollaTek
Why we love it
Versatile for various applications.
Reliable control for electronics.
Strong output drive capacity.
Main Highlights
This relay module is designed to control AC circuits by switching them ON or OFF in response to signals from microcontrollers like for Arduino or Raspberry Pi.
It has an output drive capacity of 10A 250V AC, 10A 125V AC, 10A 30V DC, and 10A 28V DC, with an operating voltage of 5V.
The design advantage includes the use of an 8050 Triode to increase relay coil drive, as well as a pull-down circuit on the control pin to prevent false actions.
This relay module can be used as a single-chip development board module or as a controller for home appliances.
It finds wide applications in IoT projects for controlling lights and other electronic devices, as well as in remote controls, communication systems, mechatronic devices, and powerful electronics devices.
Show More
9.1
Superb
Check Price
9.1
Superb
DollaTek
DollaTek 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 applications.
Reliable control for electronics.
Strong output drive capacity.
Main Highlights
This relay module is designed to control AC circuits by switching them ON or OFF in response to signals from microcontrollers like for Arduino or Raspberry Pi.
It has an output drive capacity of 10A 250V AC, 10A 125V AC, 10A 30V DC, and 10A 28V DC, with an operating voltage of 5V.
The design advantage includes the use of an 8050 Triode to increase relay coil drive, as well as a pull-down circuit on the control pin to prevent false actions.
This relay module can be used as a single-chip development board module or as a controller for home appliances.
It finds wide applications in IoT projects for controlling lights and other electronic devices, as well as in remote controls, communication systems, mechatronic devices, and powerful electronics devices.
Show More
9
ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
ELEGOO
15% Off
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
8.9
Excellent
Check Price
8.9
Excellent
ELEGOO
ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi
15% Off
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
10
VooGenzek 5 PCS 12V 1-Channel Relay Module Board Shield High Level Trigger, for PIC AVR DSP ARM, Compatible with Arduino
VooGenzek
Why we love it
Easy integration with microcontrollers.
Reliable control for high voltage.
Versatile for various applications.
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.
Output Drive Capacity: 12V DC, 10A 250V AC, 15A 125V AC. Operating Ovltage: 12V.
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.
Easy To Use: 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 12V 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
Easy integration with microcontrollers.
Reliable control for high voltage.
Versatile for various applications.
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.
Output Drive Capacity: 12V DC, 10A 250V AC, 15A 125V AC. Operating Ovltage: 12V.
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.
Easy To Use: 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
