Shop 1 channel relay module

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$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
357
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
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357
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Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
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76
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Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
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76
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250V/10A 1 Channel SPDT Power Relay Module 5V Control For DIY PIC AVR DSP ARM MCU
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250V/10A 1 Channel SPDT Power Relay Module 5V Control For DIY PIC AVR DSP ARM MCU
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GAEYAELE 1 Channel Relay Module DC5V Relay Interface
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123
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GAEYAELE 1 Channel Relay Module DC5V Relay Interface
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GAEYAELE 1 Channel Relay Module AC110V Relay Interface
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GAEYAELE 1 Channel Relay Module AC110V Relay Interface
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123
$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
$1.50
5V 12V 24V 1-Channel Relay Module Shield (5V)
Amazon.com
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5V 12V 24V 1-Channel Relay Module Shield (5V)
Amazon.com
$14.50
1PCS Modbus-Rtu 1 Channel 12V Relay Module Switch Input/Output RS485/TTL Communication New 2025 High For Reliable Electronic Component, Precision,
Amazon.com
$14.50
1PCS Modbus-Rtu 1 Channel 12V Relay Module Switch Input/Output RS485/TTL Communication New 2025 High For Reliable Electronic Component, Precision,
Amazon.com
$24.49
$34.99
Shelly 1 Mini Gen3, Wifi & Matter Smart Relay Switch With Dry Contacts, 1-Channel 8A, Compatible With Alexa, Home Assistant, Smartthings & Google Home
Amazon.com
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Shelly 1 Mini Gen3, Wifi & Matter Smart Relay Switch With Dry Contacts, 1-Channel 8A, Compatible With Alexa, Home Assistant, Smartthings & Google Home
Amazon.com
1K+
$12.99
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
Amazon.com
70
$12.99
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
Amazon.com
70
$7.99
CTWHA 1 Channel 5V Relay Module With Optocoupler Isolated Load For PLC Automation Equipment Control Industrial Control High Low Level Trigger Internet
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$7.99
CTWHA 1 Channel 5V Relay Module With Optocoupler Isolated Load For PLC Automation Equipment Control Industrial Control High Low Level Trigger Internet
Amazon.com
$13.99
GUETNEU Relay Board, Relay Module 1 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T731C-D24)
Amazon.com
20
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GUETNEU Relay Board, Relay Module 1 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T731C-D24)
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20
$9.98
Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module
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$9.98
Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module
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$5.97
VKLSVAN 3PCS DC 12V 1 Channel Relay Module Board With Isolated Optocoupler Supports High And Low Level Trigger Relay Expansion Board Relay Switch
Amazon.com
$5.97
VKLSVAN 3PCS DC 12V 1 Channel Relay Module Board With Isolated Optocoupler Supports High And Low Level Trigger Relay Expansion Board Relay Switch
Amazon.com
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
81
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
81
$9.99
AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Amazon.com
5
$9.99
AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Amazon.com
5
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AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board
Amazon.com
94
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AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board
Amazon.com
94
$12.99
Valefod DC 12V Relay Module 1-Channel Relay Switch With Optocoupler Isolation High/Low Level Trigger, Pack Of 10
Amazon.com
418
$12.99
Valefod DC 12V Relay Module 1-Channel Relay Switch With Optocoupler Isolation High/Low Level Trigger, Pack Of 10
Amazon.com
418
$7.99
Aoicrie 5Pcs DC 5V 1 Channel Relay Module Board Shield With Optocoupler Isolation Support High Or Low Level Compatible Development Board Trigger
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30
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Aoicrie 5Pcs DC 5V 1 Channel Relay Module Board Shield With Optocoupler Isolation Support High Or Low Level Compatible Development Board Trigger
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30
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JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
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JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
Amazon.com
$3.36
1 Channel 30A Relay Module 5V/12V/24V High And Low Level PLC Automation Control Intelligence
Aliexpress
$3.36
1 Channel 30A Relay Module 5V/12V/24V High And Low Level PLC Automation Control Intelligence
Aliexpress
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$3.80
1 Channel One Way 5V 12V Low Level Trigger Relay Module Microcontroller Development Expansion Board
Aliexpress
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$3.80
1 Channel One Way 5V 12V Low Level Trigger Relay Module Microcontroller Development Expansion Board
Aliexpress
$11.97
Hibctr 10 Packs 5V One Channel Relay Module Relay Switch With OPTO Isolation High Low Level Trigger.
Amazon.com
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Hibctr 10 Packs 5V One Channel Relay Module Relay Switch With OPTO Isolation High Low Level Trigger.
Amazon.com
$8.99
EC Buying 2Pcs 5V Relay Module 5V 1-Channel 30A With Optocoupler Isolation Module High And Low Level Trigger 5Ma Relay PCB
Amazon.com
2
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EC Buying 2Pcs 5V Relay Module 5V 1-Channel 30A With Optocoupler Isolation Module High And Low Level Trigger 5Ma Relay PCB
Amazon.com
2
$26.08
Hailege 2Pcs 12 V 1 Channel Relay Module Relay Switch With Optocoupler Isolation Support High Or Low Level Trigger
Everymarket INC
$26.08
Hailege 2Pcs 12 V 1 Channel Relay Module Relay Switch With Optocoupler Isolation Support High Or Low Level Trigger
Everymarket INC
$13.99
HUAREW 1-Channel 12V Relay Module With Optocoupler Isolation Supports High And Low Level Triggering (Pack Of 10)
Amazon.com
19
$13.99
HUAREW 1-Channel 12V Relay Module With Optocoupler Isolation Supports High And Low Level Triggering (Pack Of 10)
Amazon.com
19
Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide
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Shop 1 channel relay module

Sponsored
About our ads
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
357
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
357
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
76
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
76
$6.19
250V/10A 1 Channel SPDT Power Relay Module 5V Control For DIY PIC AVR DSP ARM MCU
Amazon.com
3
$6.19
250V/10A 1 Channel SPDT Power Relay Module 5V Control For DIY PIC AVR DSP ARM MCU
Amazon.com
3
$8.99
GAEYAELE 1 Channel Relay Module DC5V Relay Interface
Amazon.com
123
Free shipping
$8.99
GAEYAELE 1 Channel Relay Module DC5V Relay Interface
Amazon.com
123
$9.99
GAEYAELE 1 Channel Relay Module AC110V Relay Interface
Amazon.com
123
$9.99
GAEYAELE 1 Channel Relay Module AC110V Relay Interface
Amazon.com
123
$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
$1.50
5V 12V 24V 1-Channel Relay Module Shield (5V)
Amazon.com
$1.50
5V 12V 24V 1-Channel Relay Module Shield (5V)
Amazon.com
$14.50
1PCS Modbus-Rtu 1 Channel 12V Relay Module Switch Input/Output RS485/TTL Communication New 2025 High For Reliable Electronic Component, Precision,
Amazon.com
$14.50
1PCS Modbus-Rtu 1 Channel 12V Relay Module Switch Input/Output RS485/TTL Communication New 2025 High For Reliable Electronic Component, Precision,
Amazon.com
$24.49
$34.99
Shelly 1 Mini Gen3, Wifi & Matter Smart Relay Switch With Dry Contacts, 1-Channel 8A, Compatible With Alexa, Home Assistant, Smartthings & Google Home
Amazon.com
1K+
30% off
$24.49
$34.99
Shelly 1 Mini Gen3, Wifi & Matter Smart Relay Switch With Dry Contacts, 1-Channel 8A, Compatible With Alexa, Home Assistant, Smartthings & Google Home
Amazon.com
1K+
$12.99
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
Amazon.com
70
$12.99
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
Amazon.com
70
$7.99
CTWHA 1 Channel 5V Relay Module With Optocoupler Isolated Load For PLC Automation Equipment Control Industrial Control High Low Level Trigger Internet
Amazon.com
$7.99
CTWHA 1 Channel 5V Relay Module With Optocoupler Isolated Load For PLC Automation Equipment Control Industrial Control High Low Level Trigger Internet
Amazon.com
$13.99
GUETNEU Relay Board, Relay Module 1 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T731C-D24)
Amazon.com
20
$13.99
GUETNEU Relay Board, Relay Module 1 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T731C-D24)
Amazon.com
20
$9.98
Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module
Amazon.com
$9.98
Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module
Amazon.com
$5.97
VKLSVAN 3PCS DC 12V 1 Channel Relay Module Board With Isolated Optocoupler Supports High And Low Level Trigger Relay Expansion Board Relay Switch
Amazon.com
$5.97
VKLSVAN 3PCS DC 12V 1 Channel Relay Module Board With Isolated Optocoupler Supports High And Low Level Trigger Relay Expansion Board Relay Switch
Amazon.com
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
81
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
81
$9.99
AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Amazon.com
5
$9.99
AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Amazon.com
5
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AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board
Amazon.com
94
$13.99
AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board
Amazon.com
94
$12.99
Valefod DC 12V Relay Module 1-Channel Relay Switch With Optocoupler Isolation High/Low Level Trigger, Pack Of 10
Amazon.com
418
$12.99
Valefod DC 12V Relay Module 1-Channel Relay Switch With Optocoupler Isolation High/Low Level Trigger, Pack Of 10
Amazon.com
418