购买 4 Relay Module Arduino Connection

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$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$158.95
MSD 7566-4 Four Channel Relay Module
Amazon.com
2
Free shipping
$158.95
MSD 7566-4 Four Channel Relay Module
Amazon.com
2
$18.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
120
$18.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
120
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$11.99
4 Channel Relay Module - Progressive Automations
Progressive Automations
$11.99
4 Channel Relay Module - Progressive Automations
Progressive Automations
$1.55
$1.94
4 Channel Relay Module DC 5V 12V 24V High And Low Level Trigger Relay Control Board Shield With
Aliexpress
折扣 20%
$1.55
$1.94
4 Channel Relay Module DC 5V 12V 24V High And Low Level Trigger Relay Control Board Shield With
Aliexpress
$133.00
Relay Output Module: 4-pt, 6-24 VDC/6-240 VAC (PN# D2-04TRS)
Automation Direct
$133.00
Relay Output Module: 4-pt, 6-24 VDC/6-240 VAC (PN# D2-04TRS)
Automation Direct
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$106.03
2Pcs 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino Us
eBay.com
Free shipping
$106.03
2Pcs 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino Us
eBay.com
Free shipping
$1.26
$3.61
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
折扣 65%
$1.26
$3.61
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$4.56
1PCS DC 5V 12V 24V 4 Channel Optocoupler Relay 4 Way Relay Module With Optocoupler Output Low/High
Aliexpress
Free shipping
$4.56
1PCS DC 5V 12V 24V 4 Channel Optocoupler Relay 4 Way Relay Module With Optocoupler Output Low/High
Aliexpress
Free shipping
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$3.46
$5.70
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
折扣 39%
$3.46
$5.70
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$0.86
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$0.86
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$36.25
Iot Relay - Enclosed High-Power Power Relay For Arduino, Raspberry Pi, PIC Or Wifi, Relay Shield, Automatic
Amazon.com
1 千+
Free shipping
$36.25
Iot Relay - Enclosed High-Power Power Relay For Arduino, Raspberry Pi, PIC Or Wifi, Relay Shield, Automatic
Amazon.com
1 千+
$1.50
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High Low Level Trigger
Aliexpress
$1.50
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High Low Level Trigger
Aliexpress
$0.46
$0.65
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
Aliexpress
折扣 29%
$0.46
$0.65
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
Aliexpress
$47.98
5V/12V Relay Module Interface Board For High Low Level Arduino 1/2/4/8 Channels
eBay.com
$47.98
5V/12V Relay Module Interface Board For High Low Level Arduino 1/2/4/8 Channels
eBay.com
$1.65
$4.45
1 2 4 6 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
折扣 62%
$1.65
$4.45
1 2 4 6 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$7.72
$13.08
YYG-4 30A Four Way Relay Module Control Panel Optocoupler Isolation MCU PLC Amplification 12V DC
Aliexpress
Free shipping
折扣 40%
$7.72
$13.08
YYG-4 30A Four Way Relay Module Control Panel Optocoupler Isolation MCU PLC Amplification 12V DC
Aliexpress
Free shipping
$84.71
2Pcs 4 Channel B Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino
eBay.com
Free shipping
$84.71
2Pcs 4 Channel B Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino
eBay.com
Free shipping
$0.97
$1.10
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
Aliexpress
折扣 11%
$0.97
$1.10
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
Aliexpress
$1.61
$4.75
1PCS 1 2 4 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low Level
Aliexpress
折扣 66%
$1.61
$4.75
1PCS 1 2 4 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low Level
Aliexpress
$24.79
For Arduino Relay Shield V3.0 4 Way Channel Relay Control Expansion Board
eBay.com
$24.79
For Arduino Relay Shield V3.0 4 Way Channel Relay Control Expansion Board
eBay.com
$21.45
$22.52
DC 5V 12V 24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduiuo Delay Timer Switch
Aliexpress
Free shipping
$21.45
$22.52
DC 5V 12V 24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduiuo Delay Timer Switch
Aliexpress
Free shipping
$13.95
5V 4 Channel Relay Shield Module Arduino Compatible
eBay.com
Free shipping
$13.95
5V 4 Channel Relay Shield Module Arduino Compatible
eBay.com
Free shipping
$37.76
1 2 4 8 16 Channels Relay Board Module High/Low Level 5V 12V For Arduino AVR ARM
eBay.com
$37.76
1 2 4 8 16 Channels Relay Board Module High/Low Level 5V 12V For Arduino AVR ARM
eBay.com
$1.78
$3.52
1/2/4/6/8 Channel Relay Module With Optocoupler 5V/12V/24V Relay Module With Indicator Light For
Aliexpress
折扣 49%
$1.78
$3.52
1/2/4/6/8 Channel Relay Module With Optocoupler 5V/12V/24V Relay Module With Indicator Light For
Aliexpress
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$0.79
$1.13
5V 12V 1 2 4 8 Channel Relay Module With Optocoupler Output 1 2 4 6 8 Way Relay 5V 12V Low Level
Aliexpress
折扣 30%
$0.79
$1.13
5V 12V 1 2 4 8 Channel Relay Module With Optocoupler Output 1 2 4 6 8 Way Relay 5V 12V Low Level
Aliexpress
$1.60
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$1.60
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$32.59
1/2/4/8 Arduinos Pi Channel Relay Board Module Selectable High Low 3.3 5 12V 24V
eBay.com
$32.59
1/2/4/8 Arduinos Pi Channel Relay Board Module Selectable High Low 3.3 5 12V 24V
eBay.com
$2.69
$2.90
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
Aliexpress
$2.69
$2.90
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
Aliexpress

购买 4 Relay Module Arduino Connection

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$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$158.95
MSD 7566-4 Four Channel Relay Module
Amazon.com
2
Free shipping
$158.95
MSD 7566-4 Four Channel Relay Module
Amazon.com
2
$18.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
120
$18.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
120
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$11.99
4 Channel Relay Module - Progressive Automations
Progressive Automations
$11.99
4 Channel Relay Module - Progressive Automations
Progressive Automations
$1.55
$1.94
4 Channel Relay Module DC 5V 12V 24V High And Low Level Trigger Relay Control Board Shield With
Aliexpress
折扣 20%
$1.55
$1.94
4 Channel Relay Module DC 5V 12V 24V High And Low Level Trigger Relay Control Board Shield With
Aliexpress
$133.00
Relay Output Module: 4-pt, 6-24 VDC/6-240 VAC (PN# D2-04TRS)
Automation Direct
$133.00
Relay Output Module: 4-pt, 6-24 VDC/6-240 VAC (PN# D2-04TRS)
Automation Direct
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$106.03
2Pcs 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino Us
eBay.com
Free shipping
$106.03
2Pcs 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino Us
eBay.com
Free shipping
$1.26
$3.61
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
折扣 65%
$1.26
$3.61
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$4.56
1PCS DC 5V 12V 24V 4 Channel Optocoupler Relay 4 Way Relay Module With Optocoupler Output Low/High
Aliexpress
Free shipping
$4.56
1PCS DC 5V 12V 24V 4 Channel Optocoupler Relay 4 Way Relay Module With Optocoupler Output Low/High
Aliexpress
Free shipping
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$3.46
$5.70
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
折扣 39%
$3.46
$5.70
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$0.86
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$0.86
1 2 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$36.25
Iot Relay - Enclosed High-Power Power Relay For Arduino, Raspberry Pi, PIC Or Wifi, Relay Shield, Automatic
Amazon.com
1 千+
Free shipping
$36.25
Iot Relay - Enclosed High-Power Power Relay For Arduino, Raspberry Pi, PIC Or Wifi, Relay Shield, Automatic
Amazon.com
1 千+