购买 arduino relay module

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$15.99
Dafurui 8Pack 1 Channel 5V Relay Module High/Low Level Trigger Relay Board | Optocoupler Isolation For Stable Signal.Switchable High/Low Level Trigger
Amazon.com
77
$15.99
Dafurui 8Pack 1 Channel 5V Relay Module High/Low Level Trigger Relay Board | Optocoupler Isolation For Stable Signal.Switchable High/Low Level Trigger
Amazon.com
$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
$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
$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
$9.99
$11.99
ANMBEST 12V 8 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
422
折扣 16%
$9.99
$11.99
ANMBEST 12V 8 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
$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
$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
$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com
$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com
$10.99
1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
Amazon.com
$10.99
1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
Amazon.com
$11.60
Jolooyo KY-019 5V Relay Module For Arduino AVR PIC (Pack Of 5)
Amazon.com
$11.60
Jolooyo KY-019 5V Relay Module For Arduino AVR PIC (Pack Of 5)
Amazon.com
$11.99
Geekstory 5PCS 2 Channel 5V Relay Module 10A With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR DSP
Amazon.com
27
$11.99
Geekstory 5PCS 2 Channel 5V Relay Module 10A With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR DSP
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 (12V)
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 (12V)
Amazon.com
$10.11
One Way Relay Module 30A High Power High/Low Level Optocoupler Isolation Relay Module Yyg-2(5V Dc) For Relay 30A Yyg 2 Relay 12 Volt Yyg-2 Relay 30A
Amazon.com
Free shipping
$10.11
One Way Relay Module 30A High Power High/Low Level Optocoupler Isolation Relay Module Yyg-2(5V Dc) For Relay 30A Yyg 2 Relay 12 Volt Yyg-2 Relay 30A
Amazon.com
$17.99
Fainwan 2Pcs 8 Channel DC 5V Relay Module With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Rasp-Berry Pi
Amazon.com
3
$17.99
Fainwan 2Pcs 8 Channel DC 5V Relay Module With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Rasp-Berry Pi
Amazon.com
$9.99
$12.51
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
192
折扣 20%
$9.99
$12.51
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
$6.50
Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$6.50
Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
$11.99
Lexiesxue 5Pcs G3MB-202P G3MB 202P DC-AC PCB SSR In 5V DC Out 240V AC 2A Solid State Relay Module For Arduino
Amazon.com
Free shipping
$11.99
Lexiesxue 5Pcs G3MB-202P G3MB 202P DC-AC PCB SSR In 5V DC Out 240V AC 2A Solid State Relay Module For Arduino
Amazon.com
$14.49
ANMBEST 5PCS 12V 2 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
$14.49
ANMBEST 5PCS 12V 2 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$9.99
1 Channel 12V Relay Module Board Shield With Optocoupler Support High/Low Level Trigger Compatible Relay(Pack Of 8) (12V)
Amazon.com
$9.99
1 Channel 12V Relay Module Board Shield With Optocoupler Support High/Low Level Trigger Compatible Relay(Pack Of 8) (12V)
Amazon.com
$0.99
$1.83
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
折扣 45%
$0.99
$1.83
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$40.70
25Pcs 1 Channel 5V Relay Module With Optocoupler For Arduino Pic Arm
eBay
$40.70
25Pcs 1 Channel 5V Relay Module With Optocoupler For Arduino Pic Arm
eBay
$8.77
$9.97
JESSINIE 5V Relay Module With Optocoupler Isolation, 8 Channel High/Low Level Trigger, Compatible With Arduino Raspberry Pi For DIY Projects
Amazon.com
53
折扣 12%
$8.77
$9.97
JESSINIE 5V Relay Module With Optocoupler Isolation, 8 Channel High/Low Level Trigger, Compatible With Arduino Raspberry Pi For DIY Projects
Amazon.com
$12.34
CANADUINO® 4-Channel Stackable I2C Relay Shield For Arduino - DIY Soldering Kit
Amazon.com
$12.34
CANADUINO® 4-Channel Stackable I2C Relay Shield For Arduino - DIY Soldering Kit
Amazon.com
$44.99
ANMBEST 8 Channel AC/DC 12V Rail Mount Relay Interface Module, G2R-1-E | PNP NPN SPDT 16A Pluggable Power Relay, Module For Arduino Board,Industrial
Amazon.com
2
Free shipping
$44.99
ANMBEST 8 Channel AC/DC 12V Rail Mount Relay Interface Module, G2R-1-E | PNP NPN SPDT 16A Pluggable Power Relay, Module For Arduino Board,Industrial
Amazon.com
$1.21
$1.71
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
Free shipping
折扣 29%
$1.21
$1.71
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$11.67
$12.97
JESSINIE 5V 2 Channel Solid State Relay Module, Low Level Trigger, 5A DC Control For Arduino Raspberry Pi
Amazon.com
2
折扣 10%
$11.67
$12.97
JESSINIE 5V 2 Channel Solid State Relay Module, Low Level Trigger, 5A DC Control For Arduino Raspberry Pi
Amazon.com
$12.34
$13.86
TZT 1/3PCS 5V 12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt
AliExpress
折扣 10%
$12.34
$13.86
TZT 1/3PCS 5V 12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt
AliExpress
$6.39
$6.42
1-10Pcs 5V 4 Channel Relay Shield Module For Arduino R3 ARM PIC AVR DSP Electronic 4 Channel Relay
AliExpress
Free shipping
$6.39
$6.42
1-10Pcs 5V 4 Channel Relay Shield Module For Arduino R3 ARM PIC AVR DSP Electronic 4 Channel Relay
AliExpress
$0.99
$1.26
KY-019 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM For Arduino Relay
AliExpress
折扣 21%
$0.99
$1.26
KY-019 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM For Arduino Relay
AliExpress
$2.22
$5.22
12V 8 Channel Relay Module With Optocoupler Module For Arduino UNO 2560 ARM PIC AVR Module Board
AliExpress
折扣 57%
$2.22
$5.22
12V 8 Channel Relay Module With Optocoupler Module For Arduino UNO 2560 ARM PIC AVR Module Board
AliExpress
$10.26
$10.80
1PCS 5V 12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt
Aliexpress
$10.26
$10.80
1PCS 5V 12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt
Aliexpress
$25.34
16-Channel 12V Relay Module Board For Arduino DSP AVR PIC ARM
eBay
6
Free shipping
$25.34
16-Channel 12V Relay Module Board For Arduino DSP AVR PIC ARM
eBay
$1.54
$4.59
1 Channel 5V 12V Relay Module Board Shield For Arduino With Optocoupler Support High And Low Level
Aliexpress
折扣 66%
$1.54
$4.59
1 Channel 5V 12V Relay Module Board Shield For Arduino With Optocoupler Support High And Low Level
Aliexpress
$12.99
8-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
$12.99
8-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
$6.00
5V 4 Channel Relay Module For Arduino Compatible With PIC ARM DSP AVR MSP430 - 2 Pack
Evalm
$6.00
5V 4 Channel Relay Module For Arduino Compatible With PIC ARM DSP AVR MSP430 - 2 Pack
Evalm
$11.99
Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
$11.99
Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
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How to make Automatic Plant Watering System using Arduino UNO and Soil Sensor
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购买 arduino 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
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
$17.99
Fainwan 2Pcs 8 Channel DC 5V Relay Module With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Rasp-Berry Pi
Amazon.com
3
$17.99
Fainwan 2Pcs 8 Channel DC 5V Relay Module With Optocoupler For UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Rasp-Berry Pi
Amazon.com
$11.99
Lexiesxue 5Pcs G3MB-202P G3MB 202P DC-AC PCB SSR In 5V DC Out 240V AC 2A Solid State Relay Module For Arduino
Amazon.com
Free shipping
$11.99
Lexiesxue 5Pcs G3MB-202P G3MB 202P DC-AC PCB SSR In 5V DC Out 240V AC 2A Solid State Relay Module For Arduino
Amazon.com
$14.49
ANMBEST 5PCS 12V 2 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
$14.49
ANMBEST 5PCS 12V 2 Channel Relay With Optocoupler High/Low Level Trigger | Module For Arduino,Industrial Use, Stable Performance, Wide Compatibility
Amazon.com
$9.99
$12.51
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
192
折扣 20%
$9.99
$12.51
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
$6.50
Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$6.50
Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$9.99
1 Channel 12V Relay Module Board Shield With Optocoupler Support High/Low Level Trigger Compatible Relay(Pack Of 8) (12V)
Amazon.com
$9.99
1 Channel 12V Relay Module Board Shield With Optocoupler Support High/Low Level Trigger Compatible Relay(Pack Of 8) (12V)
Amazon.com
$8.77
$9.97
JESSINIE 5V Relay Module With Optocoupler Isolation, 8 Channel High/Low Level Trigger, Compatible With Arduino Raspberry Pi For DIY Projects
Amazon.com
53
折扣 12%
$8.77
$9.97
JESSINIE 5V Relay Module With Optocoupler Isolation, 8 Channel High/Low Level Trigger, Compatible With Arduino Raspberry Pi For DIY Projects
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$0.99
$1.83
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
折扣 45%
$0.99
$1.83
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$40.70
25Pcs 1 Channel 5V Relay Module With Optocoupler For Arduino Pic Arm
eBay
$40.70
25Pcs 1 Channel 5V Relay Module With Optocoupler For Arduino Pic Arm
eBay
$12.34
CANADUINO® 4-Channel Stackable I2C Relay Shield For Arduino - DIY Soldering Kit
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