Shop DIY Relay Module

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$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
184
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$6.99
Wifi Smart Mini DIY Relay Module 3-Way Wall Switch Compatible With Alexa App And Voice Control,16A (1 Pack)
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Wifi Smart Mini DIY Relay Module 3-Way Wall Switch Compatible With Alexa App And Voice Control,16A (1 Pack)
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Sainsmart 16-Channel 9-36V USB Relay Module
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Sainsmart 16-Channel 9-36V USB Relay Module
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$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
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199
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$13.99
URANT 1NO 1NC 8A Power Relay Module,Suitable For Arduino's 12V Relay Module,Used For Single-Channel Power Switch Control Boards In DIY Electronic
Amazon.com
$13.99
URANT 1NO 1NC 8A Power Relay Module,Suitable For Arduino's 12V Relay Module,Used For Single-Channel Power Switch Control Boards In DIY Electronic
Amazon.com
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
81
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
$8.99
Sainsmart 4-Channel Relay Module
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432
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
$91.00
Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)
Automation Direct
$91.00
Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)
Automation Direct
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
315
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
$18.99
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless Wifi 8 Way Channel 5V Relay Module ESP32-WROOM-32E For Arduino
Amazon.com
39
$18.99
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless Wifi 8 Way Channel 5V Relay Module ESP32-WROOM-32E For Arduino
Amazon.com
$2.67
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.67
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.02
1Pcs Universal DIY 433 Mhz 1CH RF Relay Receiver Wireless Remote Control Switch Micro Module Light
Aliexpress
$2.02
1Pcs Universal DIY 433 Mhz 1CH RF Relay Receiver Wireless Remote Control Switch Micro Module Light
Aliexpress
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
4
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$3.15
4 Channel Smart Relay Tuya Wifi+RF433 DIY Module AC 100-240V/DC 5-24V Alexa Remote Timer Switch For
Aliexpress
Free shipping
$3.15
4 Channel Smart Relay Tuya Wifi+RF433 DIY Module AC 100-240V/DC 5-24V Alexa Remote Timer Switch For
Aliexpress
$72.00
Relay/analog Combo Module: for WEG CFW300 series AC drives (PN# CFW300-IOAR)
Automation Direct
$72.00
Relay/analog Combo Module: for WEG CFW300 series AC drives (PN# CFW300-IOAR)
Automation Direct
$77.00
Relay/analog Combo Module: 5-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14968050)
Automation Direct
$77.00
Relay/analog Combo Module: 5-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14968050)
Automation Direct
$1.52
DIYUSER 5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module In
Aliexpress
$1.52
DIYUSER 5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module In
Aliexpress
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
8
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
$1.50
5V 12V 24V 1-Channel Relay Module Shield (5V)
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$1.50
5V 12V 24V 1-Channel Relay Module Shield (5V)
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$9.99
NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger With Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 24V, Blue)
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30
$9.99
NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger With Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 24V, Blue)
Amazon.com
$23.20
DC 12V 24V Time Relay Module Adjustable Timer Delay Turn Off Timer Relay Control Switch With Potentiometer(12V 0 To 10Sec)
Amazon.com
Free shipping
$23.20
DC 12V 24V Time Relay Module Adjustable Timer Delay Turn Off Timer Relay Control Switch With Potentiometer(12V 0 To 10Sec)
Amazon.com
$4.99
Yetaida 2 Channel DC 5V Relay Module With Optocoupler Control Board And Indicator Light, Development Board Accessories Relays, Suport High Low Level
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$4.99
Yetaida 2 Channel DC 5V Relay Module With Optocoupler Control Board And Indicator Light, Development Board Accessories Relays, Suport High Low Level
Amazon.com
$67.00
Relay Output Module: 3-pt, 250 VAC/30 VDC (PN# GS30A-03TRA)
Automation Direct
$67.00
Relay Output Module: 3-pt, 250 VAC/30 VDC (PN# GS30A-03TRA)
Automation Direct
$56.99
Notifier FRM-1 Fire Alarm Intelligent Addressable Relay Module
Amazon.com
Free shipping
$56.99
Notifier FRM-1 Fire Alarm Intelligent Addressable Relay Module
Amazon.com
$17.99
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
Amazon.com
11
$17.99
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
Amazon.com
$3.99
$9.99
Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
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$3.99
$9.99
Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
$92.58
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
2
Free shipping
$92.58
Silent Knight IDP-Relay Addressable Relay Module
Amazon.com
$112.00
Relay/analog Combo Module: 6-pt in, 4-pt out, 3-ch in, 2-ch out (PN# 14742129)
Automation Direct
$112.00
Relay/analog Combo Module: 6-pt in, 4-pt out, 3-ch in, 2-ch out (PN# 14742129)
Automation Direct
$88.00
Relay/analog Combo Module: 8-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14742006)
Automation Direct
$88.00
Relay/analog Combo Module: 8-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14742006)
Automation Direct
$2.99
12V DC 30/40A 5 PIN Universal Relay - 5 Pin Relay
Super Bright LEDs
$2.99
12V DC 30/40A 5 PIN Universal Relay - 5 Pin Relay
Super Bright LEDs
DIY RELAY MODULE
DIY RELAY MODULE
Oct 2, 2020
instructables.com
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Aug 30, 2020
hackaday.io
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Jul 11, 2023
arduino.cc
How to Make Relay Module at Home Easily | 2 Channel | Full PCB Design & Circuit Diagram-100% Working
11:28
How to Make Relay Module at Home Easily | 2 Channel | Full PCB Design & Circuit Diagram-100% Working
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DIY single Channel Relay Module | Complete Tutorial | EasyEDA |
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How to make Relay Module 5V at home | Easy Steps
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DIY: Relay Switch Motor Controller - Arduino
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How To Make A 12V Relay Module At Home
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DIY 4-Channel Relay Module | Build Your Own Relay Board for Device Control
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See more

Shop DIY Relay Module

Sponsored
About our ads
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
184
$11.29
Hiletgo 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger 8 Ways Relay Switch Module For Arduino
Amazon.com
$6.99
Wifi Smart Mini DIY Relay Module 3-Way Wall Switch Compatible With Alexa App And Voice Control,16A (1 Pack)
Amazon.com
$6.99
Wifi Smart Mini DIY Relay Module 3-Way Wall Switch Compatible With Alexa App And Voice Control,16A (1 Pack)
Amazon.com
$31.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
20% off
$31.99
$39.99
Sainsmart 16-Channel 9-36V USB Relay Module
Amazon.com
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
199
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$13.99
URANT 1NO 1NC 8A Power Relay Module,Suitable For Arduino's 12V Relay Module,Used For Single-Channel Power Switch Control Boards In DIY Electronic
Amazon.com
$13.99
URANT 1NO 1NC 8A Power Relay Module,Suitable For Arduino's 12V Relay Module,Used For Single-Channel Power Switch Control Boards In DIY Electronic
Amazon.com
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
81
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
432
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
$91.00
Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)
Automation Direct
$91.00
Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)
Automation Direct
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
315
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
$18.99
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless Wifi 8 Way Channel 5V Relay Module ESP32-WROOM-32E For Arduino
Amazon.com
39
$18.99
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless Wifi 8 Way Channel 5V Relay Module ESP32-WROOM-32E For Arduino
Amazon.com
$2.67
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.67
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.02
1Pcs Universal DIY 433 Mhz 1CH RF Relay Receiver Wireless Remote Control Switch Micro Module Light
Aliexpress
$2.02
1Pcs Universal DIY 433 Mhz 1CH RF Relay Receiver Wireless Remote Control Switch Micro Module Light
Aliexpress
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
4
$5.99
NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Amazon.com
$3.15
4 Channel Smart Relay Tuya Wifi+RF433 DIY Module AC 100-240V/DC 5-24V Alexa Remote Timer Switch For
Aliexpress
Free shipping
$3.15
4 Channel Smart Relay Tuya Wifi+RF433 DIY Module AC 100-240V/DC 5-24V Alexa Remote Timer Switch For
Aliexpress
$72.00
Relay/analog Combo Module: for WEG CFW300 series AC drives (PN# CFW300-IOAR)
Automation Direct
$72.00
Relay/analog Combo Module: for WEG CFW300 series AC drives (PN# CFW300-IOAR)
Automation Direct
$77.00
Relay/analog Combo Module: 5-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14968050)
Automation Direct
$77.00
Relay/analog Combo Module: 5-pt in, 5-pt out, 1-ch in, 1-ch out (PN# 14968050)
Automation Direct
$1.52
DIYUSER 5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module In
Aliexpress
$1.52
DIYUSER 5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module In
Aliexpress
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
8
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com