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购买 input relay module

$23.98

12V Automotive Relay Box 6 Way Relay Fuse Box, With 12 AWG Pre-Wired, Fuse Relay Block Universal Relay Panel

Walmart

$23.98

12V Automotive Relay Box 6 Way Relay Fuse Box, With 12 AWG Pre-Wired, Fuse Relay Block Universal Relay Panel

Walmart

$59.99

True Mods 12V Auto Waterproof Fuse 5-Pin Relay Box Block Kit W/ 12Awg + 16Awg Pre-Wired Harness [Bosch Style Relays & Fuses] Universal Relay Panel For

Walmart

Free shipping

$59.99

True Mods 12V Auto Waterproof Fuse 5-Pin Relay Box Block Kit W/ 12Awg + 16Awg Pre-Wired Harness [Bosch Style Relays & Fuses] Universal Relay Panel For

Walmart

$269.93

2943754 Phoenix Contact - Multiple Relay Module - EMUG 22- 4REL/KSR-G 24/ 1 | PLC Direct | Programmable Logic Controllers And Industrial Automation

PLC Direct

$269.93

2943754 Phoenix Contact - Multiple Relay Module - EMUG 22- 4REL/KSR-G 24/ 1 | PLC Direct | Programmable Logic Controllers And Industrial Automation

PLC Direct

$15.99

8 Channel Relay Module - Progressive Automations

Progressive Automations

$15.99

8 Channel Relay Module - Progressive Automations

Progressive Automations

$236.25

2967947 Phoenix Contact - Solid-State Relay Module - PLC-OSC- 24DC/230AC/ 1/ACT | PLC Direct | Programmable Logic Controllers And Industrial

PLC Direct

$236.25

2967947 Phoenix Contact - Solid-State Relay Module - PLC-OSC- 24DC/230AC/ 1/ACT | PLC Direct | Programmable Logic Controllers And Industrial

PLC Direct

$13.99

2/4/8-Channel 5V Relay Module 8-Channel

SainSmart.com

409

$13.99

2/4/8-Channel 5V Relay Module 8-Channel

SainSmart.com

$410.03

Littelfuse Rk-13 Relay Interface Module

Gordon Electric Supply

$410.03

Littelfuse Rk-13 Relay Interface Module

Gordon Electric Supply

$43.15

Adafruit Industries LLC 2935 POWER RELAY MODULE 4-OUTLET

DigiKey

$43.15

Adafruit Industries LLC 2935 POWER RELAY MODULE 4-OUTLET

DigiKey

$17.12

Altronix (RB1224) Relay Module 12Vdc Or 24Vdc 5Amp/115Vac

POSGlobal.com

$17.12

Altronix (RB1224) Relay Module 12Vdc Or 24Vdc 5Amp/115Vac

POSGlobal.com

$97.00

2 Input / 2 Relay Combo I/O Module For TLS-350/350Plus

Freedom Electronics

$97.00

2 Input / 2 Relay Combo I/O Module For TLS-350/350Plus

Freedom Electronics

$142.50

ACI | ATL | Analog Input To Relay Output Interface Module

Blackhawk Supply

$142.50

ACI | ATL | Analog Input To Relay Output Interface Module

Blackhawk Supply

$29.55

859-304 WAGO Relay Module, 24 VDC Nominal Input Voltage

Valin Process Control Solutions

$29.55

859-304 WAGO Relay Module, 24 VDC Nominal Input Voltage

Valin Process Control Solutions

$11.99

2/4/8-Channel 5V Relay Module 4-Channel

SainSmart.com

$11.99

2/4/8-Channel 5V Relay Module 4-Channel

SainSmart.com

$270.00

2967235 Phoenix Contact - Relay Module - PLC-RSC- 12DC/21-21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$270.00

2967235 Phoenix Contact - Relay Module - PLC-RSC- 12DC/21-21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$19.89

788-304 WAGO Relay Module, 24 VDC Nominal Input Voltage

Valin Process Control Solutions

$19.89

788-304 WAGO Relay Module, 24 VDC Nominal Input Voltage

Valin Process Control Solutions

$359.67

2982786 Phoenix Contact - Solid-State Relay Module - PLC-OSC- 24DC/ 24DC/ 5/ACT | PLC Direct | Programmable Logic Controllers And Industrial

PLC Direct

$359.67

2982786 Phoenix Contact - Solid-State Relay Module - PLC-OSC- 24DC/ 24DC/ 5/ACT | PLC Direct | Programmable Logic Controllers And Industrial

PLC Direct

$1.25

1 Channel One Way 5V 12V Low Level Trigger Relay Module Microcontroller Development Expansion Board

Aliexpress

$1.25

1 Channel One Way 5V 12V Low Level Trigger Relay Module Microcontroller Development Expansion Board

Aliexpress

$348.14

2966320 Phoenix Contact - Relay Module - PLC-RSC-120UC/ 1AU/SEN | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$348.14

2966320 Phoenix Contact - Relay Module - PLC-RSC-120UC/ 1AU/SEN | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$335.89

2900298 Phoenix Contact - Relay Module - PLC-RPT- 24DC/ 1IC/ACT | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$335.89

2900298 Phoenix Contact - Relay Module - PLC-RPT- 24DC/ 1IC/ACT | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$439.98

2952855 Phoenix Contact - Relay Module - EMG 22-REL/KSR-230/21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$439.98

2952855 Phoenix Contact - Relay Module - EMG 22-REL/KSR-230/21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$58.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-1

Summit Racing

$58.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-1

Summit Racing

$476.77

2954222 Phoenix Contact - Solid-State Relay Module - EMG 17-OV- 12DC/240AC/3 | PLC Direct | Programmable Logic Controllers And Industrial Automation

PLC Direct

$476.77

2954222 Phoenix Contact - Solid-State Relay Module - EMG 17-OV- 12DC/240AC/3 | PLC Direct | Programmable Logic Controllers And Industrial Automation

PLC Direct

$170.50

2972835 Phoenix Contact - Multiple Relay Module - UMK- 4 RM 24DC

WiAutomation US

$170.50

2972835 Phoenix Contact - Multiple Relay Module - UMK- 4 RM 24DC

WiAutomation US

$161.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-4

Summit Racing

Free shipping

$161.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-4

Summit Racing

$269.99

2900291 Phoenix Contact - Relay Module - PLC-RPT- 24DC/21HC | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$269.99

2900291 Phoenix Contact - Relay Module - PLC-RPT- 24DC/21HC | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$7.99

2-Pack 5V Single Channel Relay Module Expansion Board

Evalm

$7.99

2-Pack 5V Single Channel Relay Module Expansion Board

Evalm

$101.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-2

Summit Racing

$101.95

40 Amps, 7-20 V MSD Relay Modules | MSD Ignition 7566-2

Summit Racing

$524.40

Carlo Gavazzi Inc. MFI6R4 DIGITAL INPUT/RELAY OUTPUT MOD

DigiKey

$524.40

Carlo Gavazzi Inc. MFI6R4 DIGITAL INPUT/RELAY OUTPUT MOD

DigiKey

$149.12

2956026 Phoenix Contact - Relay Module - EMG 17-REL/KSR-120/21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$149.12

2956026 Phoenix Contact - Relay Module - EMG 17-REL/KSR-120/21 | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$88.60

SR2A101BD Schneider Electric

WiAutomation US

$88.60

SR2A101BD Schneider Electric

WiAutomation US

$139.08

SR2E121BD Schneider Electric

WiAutomation US

$139.08

SR2E121BD Schneider Electric

WiAutomation US

$116.35

SR2B121B Schneider Electric

WiAutomation US

$116.35

SR2B121B Schneider Electric

WiAutomation US

$226.10

SR2A101BD Schneider | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$226.10

SR2A101BD Schneider | PLC Direct | Programmable Logic Controllers And Industrial Automation Products

PLC Direct

$20.18

2905657 Phoenix Contact - Solid-State Relay Module - RIF-0-OSC-24DC/24DC/2

WiAutomation US

$20.18

2905657 Phoenix Contact - Solid-State Relay Module - RIF-0-OSC-24DC/24DC/2

WiAutomation US

$279.95

Idec Fl1e-H12rce Smart Relay Module Fl1eh12rce Ships Free

eBay

Free shipping

$279.95

Idec Fl1e-H12rce Smart Relay Module Fl1eh12rce Ships Free

eBay

$490.75

700-RM000A1 ALLEN BRADLEY - Panel Accessories & Relay/Socket Supplies

Radwell.com

$490.75

700-RM000A1 ALLEN BRADLEY - Panel Accessories & Relay/Socket Supplies

Radwell.com

Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide

7:57

YouTubeElectro Nerds Academy

Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide

Hello and Welcome to Electro Nerds Academy! In this video, we’ll learn how to control high-voltage and high-power devices like AC bulbs using an Arduino and a relay module. Since Arduino pins can only handle 5V DC at very low current, we use a relay as an electrically operated switch to safely control larger loads. What you’ll learn: What a ...

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Relay Module Arduino