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购买 usb relay module

$12.99

DSD TECH SH-UR01A USB Relay Controller For Computer And Laptop(1CH)

Amazon.com

$12.99

DSD TECH SH-UR01A USB Relay Controller For Computer And Laptop(1CH)

Amazon.com

$77.14

USB Relay Controller, 8 Contacts, Form C, 6A 250V, 12V Power

東京デバイセズ

$77.14

USB Relay Controller, 8 Contacts, Form C, 6A 250V, 12V Power

東京デバイセズ

$35.57

USB Relay Controller, 1 Contact Form C,10A 250V AC 24V DC, Bus-Powered

東京デバイセズ

$35.57

USB Relay Controller, 1 Contact Form C,10A 250V AC 24V DC, Bus-Powered

東京デバイセズ

$3.87

USB Relay Module CH340 USB Intelligent Control Switch 10A 250VAC 30VDC Over-Currentelay

Aliexpress

$3.87

USB Relay Module CH340 USB Intelligent Control Switch 10A 250VAC 30VDC Over-Currentelay

Aliexpress

$3.45

USB Serial Port Control 1 Channel Relay Module 5V 10A CH340 Overcurrent Protection Computer Command

Aliexpress

$3.45

USB Serial Port Control 1 Channel Relay Module 5V 10A CH340 Overcurrent Protection Computer Command

Aliexpress

$30.48

$43.63

Yoidesu 936V 16 Channel Relay Module, USB Controlled Relay Optoisolated Board With 16 SPDT Relays, LED Power Indicator,For Simple ON/Off Switching Electrical Equipment

velthomes.com

折扣 30%

$30.48

$43.63

Yoidesu 936V 16 Channel Relay Module, USB Controlled Relay Optoisolated Board With 16 SPDT Relays, LED Power Indicator,For Simple ON/Off Switching Electrical Equipment

velthomes.com

$4.49

$6.33

DC 5V-12V DC 7-32V USB 5V Wifi Relay Module 1/2/4 Channel Wireless Smart Switch 433MHZ Remote

Aliexpress

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$4.49

$6.33

DC 5V-12V DC 7-32V USB 5V Wifi Relay Module 1/2/4 Channel Wireless Smart Switch 433MHZ Remote

Aliexpress

$10.97

MICRO USB 5V 4-Channel Relay Module USB Control Relay Module Serial Port NEW

eBay

$10.97

MICRO USB 5V 4-Channel Relay Module USB Control Relay Module Serial Port NEW

eBay

$3.31

$9.73

LCUS-1 /2 /4 Way Type-C/ USB-A Relay Module Electronic Converter PCB USB Intelligent Control Switch

Aliexpress

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$3.31

$9.73

LCUS-1 /2 /4 Way Type-C/ USB-A Relay Module Electronic Converter PCB USB Intelligent Control Switch

Aliexpress

$638.85

USB-ERB24, 24 Channel USB-Based Relay Module With 6 Amp Relays 6069-410-031

eBay

Free shipping

$638.85

USB-ERB24, 24 Channel USB-Based Relay Module With 6 Amp Relays 6069-410-031

eBay

$2.12

$4.23

Typec Interface LCUS-1 USB Relay Module CH340 USB Intelligent Control Switch Serial Port Relay

Aliexpress

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$2.12

$4.23

Typec Interface LCUS-1 USB Relay Module CH340 USB Intelligent Control Switch Serial Port Relay

Aliexpress

$8.60

USB Relay Module USB Intelligent Control Switch USB Switch For Lcus-1 Type2667. SODIAL. Relay Accessories. 6033180246450.

eBay

$8.60

USB Relay Module USB Intelligent Control Switch USB Switch For Lcus-1 Type2667. SODIAL. Relay Accessories. 6033180246450.

eBay

$19.39

2 in 1 DC 5V 12V 24V 8Ch USB Serial Port Relay Module UART RS232 TTL Swit

eBay

$19.39

2 in 1 DC 5V 12V 24V 8Ch USB Serial Port Relay Module UART RS232 TTL Swit

eBay

$16.58

8 Channel 5V USB Relay Board Module Computer PC Smart Control Switch Controller-

eBay

$16.58

8 Channel 5V USB Relay Board Module Computer PC Smart Control Switch Controller-

eBay

$2.96

$5.74

Ewelink Smart Relay Switch Module 1 Channel DC 7-32V USB 5V Inching Self-Locking WIFI Wireless

Aliexpress

折扣 48%

$2.96

$5.74

Ewelink Smart Relay Switch Module 1 Channel DC 7-32V USB 5V Inching Self-Locking WIFI Wireless

Aliexpress

$32.99

8-Channel 12V Computer USB Control Switch Relay Module Drive-12V 8-Channel

eBay

Free shipping

$32.99

8-Channel 12V Computer USB Control Switch Relay Module Drive-12V 8-Channel

eBay

$15.45

USB 5V / DC7-32V 4 Channel WIFI Remote Control Relay Switch Module 433MHZ 3 Mode

eBay

$15.45

USB 5V / DC7-32V 4 Channel WIFI Remote Control Relay Switch Module 433MHZ 3 Mode

eBay

$1.82

$2.46

LCUS-1 USB Intelligent Control Switch Module Serial Port Control Relay Overcurrent Protection Smart

Aliexpress

折扣 26%

$1.82

$2.46

LCUS-1 USB Intelligent Control Switch Module Serial Port Control Relay Overcurrent Protection Smart

Aliexpress

$3.84

USB 5V DC 12V 24V Wifi Relay Module For TUYA APP Remote Control Self-Lock Wireless Delay Relay For

Aliexpress

$3.84

USB 5V DC 12V 24V Wifi Relay Module For TUYA APP Remote Control Self-Lock Wireless Delay Relay For

Aliexpress

$29.56

8DI-8DO Industrial-Grade Multi-Function USB Relay Boardpc UART COM Switch Module

eBay

$29.56

8DI-8DO Industrial-Grade Multi-Function USB Relay Boardpc UART COM Switch Module

eBay

$5.31

$9.38

Smart Wifi Relay Switch Module USB 5V DC 7-32V 4-Channel Wifi Remote Control Relay Switch Module For

Aliexpress

折扣 43%

$5.31

$9.38

Smart Wifi Relay Switch Module USB 5V DC 7-32V 4-Channel Wifi Remote Control Relay Switch Module For

Aliexpress

$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

$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

$13.95

12V 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino

eBay

$13.95

12V 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C For Arduino

eBay

$20.95

12V USB Relay 8 Channel Programmable Computer Control For Smart Home New

eBay

$20.95

12V USB Relay 8 Channel Programmable Computer Control For Smart Home New

eBay

$18.10

$54.84

HID Drive-Free USB Computer Control Switch Relay Module USB Smart Switch Control Plug And Play

Aliexpress

Free shipping

折扣 66%

$18.10

$54.84

HID Drive-Free USB Computer Control Switch Relay Module USB Smart Switch Control Plug And Play

Aliexpress

$0.60

$0.85

Smart Electronics 5V-30V Micro USB Power Adjustable Delay Relay Timer Control Module Trigger Delay

Aliexpress

折扣 29%

$0.60

$0.85

Smart Electronics 5V-30V Micro USB Power Adjustable Delay Relay Timer Control Module Trigger Delay

Aliexpress

$104.50

USB 16 Channel Relay Module,Board For Home Automation - 12V

eBay

$104.50

USB 16 Channel Relay Module,Board For Home Automation - 12V

eBay

$11.07

5V USB Relay Module USB IOT Intelligent Control Switch 10A 250V. Other Test, Measurement & Inspection.

eBay

$11.07

5V USB Relay Module USB IOT Intelligent Control Switch 10A 250V. Other Test, Measurement & Inspection.

eBay

$23.18

Noyito 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intellig. NOYITO. Blue. Relay Accessories. 680613663634.

eBay

Free shipping

$23.18

Noyito 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intellig. NOYITO. Blue. Relay Accessories. 680613663634.

eBay

$6.47

$13.08

DC 7-32V USB 5V Single-Channel Yiwei App Wifi Remote Control Relay Switch Module Micro USB Interface

Aliexpress

折扣 50%

$6.47

$13.08

DC 7-32V USB 5V Single-Channel Yiwei App Wifi Remote Control Relay Switch Module Micro USB Interface

Aliexpress

$19.86

DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial7630

eBay

Free shipping

$19.86

DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial7630

eBay

$57.39

Sainsmart 16-Channel 9-36V Usb Relay Module

eBay

Free shipping

$57.39

Sainsmart 16-Channel 9-36V Usb Relay Module

eBay

$2.94

$5.77

DC 5V 2CH 4CH 8 Channel Relay Module Micro USB Board With Indicator PC Upper Computer ICSE014A

Aliexpress

折扣 49%

$2.94

$5.77

DC 5V 2CH 4CH 8 Channel Relay Module Micro USB Board With Indicator PC Upper Computer ICSE014A

Aliexpress

$2.59

$5.15

USB 5V DC12V Ewelink Smart Wifi Switch Universal Relay Module 4CH Wireless Switch Timer Phone Remote

Aliexpress

折扣 49%

$2.59

$5.15

USB 5V DC12V Ewelink Smart Wifi Switch Universal Relay Module 4CH Wireless Switch Timer Phone Remote

Aliexpress

$12.78

1/2/4/8 Channel LCUS USB Relay Module Electronic Converter LCUS-1 LCUS-2 LCUS-4

eBay

$12.78

1/2/4/8 Channel LCUS USB Relay Module Electronic Converter LCUS-1 LCUS-2 LCUS-4

eBay

$4.87

$14.77

5V 12V 24V USB Relay Control Switch 1 2 4 8 Channel Programmable Computer Control For Smart Home PC

Aliexpress

折扣 67%

$4.87

$14.77

5V 12V 24V USB Relay Control Switch 1 2 4 8 Channel Programmable Computer Control For Smart Home PC

Aliexpress

numato.com

2 Channel USB Powered Relay Module With GPIO | Numato Lab

Numato Lab’s 2 Channel USB Powered Relay Module With GPIO is great in automation of the industry easily through USB without any USB protocol knowledge.

2020年8月16日

Relay Circuit

0:16

How to Use Relay in a Circuit

circuitdigest.com

2016年6月11日

1:54

Relay Explained । Relay working । Electrical Circuit Diagram

YouTubeElectrical Circuit Diagram

已浏览 13.6万次2020年8月14日

0:31

Transform Your Understanding of Electrical Circuits with Our Relay Guide!"

YouTubeMASTER ELECTRICAL TEC

已浏览 909 次1 个月前

热门视频

4:02

Using USB Relay with ControlVUE Software to Automate Processes and Control External Devices

YouTubeLoadstar Sensors

已浏览 601 次2023年4月6日

USB Controlled Relays

qrz.com

2023年3月9日