Shop arduino relay module

Sponsored
About our ads
$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
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
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
$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
210
$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
$13.99
AITRIP 2PCS 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger For Arduino
Amazon.com
$13.99
AITRIP 2PCS 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger For Arduino
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
$2.10
$5.99
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
64% off
$2.10
$5.99
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$1.30
5V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.30
5V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$37.59
$46.99
8-Channel 5V Solid State Relay Module For Arduino
eBay
20% off
$37.59
$46.99
8-Channel 5V Solid State Relay Module For Arduino
eBay
$28.68
Pqmega 1 Pcs. X Relay Module Compatible With Arduino 5 Vdc 250 Vdc 10 A A4282
Everymarket INC
$28.68
Pqmega 1 Pcs. X Relay Module Compatible With Arduino 5 Vdc 250 Vdc 10 A A4282
Everymarket INC
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
Amazon.com
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
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
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
48% off
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
$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% off
$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
How to use an Arduino Relay Module
4:41
YouTubeTinker & Build
How to use an Arduino Relay Module
Arduino relay circuit and Arduino relay code: In this video we’ll learn how to use a SainSmart 4-Channel 5V relay module with an Arduino. We also discuss the SainSmart relay board’s capability, its use of optocouplers for optoisolation, and how to hook up the Arduino relay circuit. We use the Arduino to switch a light on and off ...
176.1K viewsFeb 4, 2018
Shorts
8 Channel Relay Module - Complete Arduino Guide! ⚡🔌
0:40
4.7K views
8 Channel Relay Module - Complete Arduino Guide! ⚡🔌
Arduino DIY Projects
Connecting the relays #arduino #relays
1:48
77 views
Connecting the relays #arduino #relays
Alpaslan durmuş
Arduino Tutorials
Arduino Course for Everybody
10:28:56
Arduino Course for Everybody
YouTubefreeCodeCamp.org
1.7M viewsNov 8, 2023
Arduino Tutorial 1: Setting Up and Programming the Arduino for Absolute Beginners
23:50
Arduino Tutorial 1: Setting Up and Programming the Arduino for Absolute Beginners
YouTubePaul McWhorter
3.1M viewsMay 31, 2019
Arduino MASTERCLASS | Full Programming Workshop in 90 Minutes!
1:25:31
Arduino MASTERCLASS | Full Programming Workshop in 90 Minutes!
YouTubeProgramming Electronics
3.7M viewsJul 22, 2022
Top videos
Arduino Relay Module Tutorial - From Beginner to PRO
1:58
Arduino Relay Module Tutorial - From Beginner to PRO
YouTubeHuHamster
40.7K viewsFeb 7, 2025
Arduino relay basics - how it works and how to use it
7:19
Arduino relay basics - how it works and how to use it
YouTubeTaste The Code
19.5K viewsNov 10, 2021
Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide
7:57
Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide
YouTubeElectro Nerds Academy
11.7K views8 months ago
Arduino Projects
👉 “Amazing Arduino LED Project | Simple Electronics DIY for Beginners” #arduino #arduinoproject #diy
0:19
👉 “Amazing Arduino LED Project | Simple Electronics DIY for Beginners” #arduino #arduinoproject #diy
YouTubeEnvention Art
5.1K views1 month ago
Top 15 Arduino Projects of 2025!
14:56
Top 15 Arduino Projects of 2025!
YouTubeToP Projects Compilation
78.6K views4 months ago
Top 5 Arduino Projects That Will Blow Your Mind 🤯🔥 | Must Try DIY Builds #arduino #tech
0:32
Top 5 Arduino Projects That Will Blow Your Mind 🤯🔥 | Must Try DIY Builds #arduino #tech
YouTubeAditya invents
2.4K views1 month ago
Arduino Relay Module Tutorial - From Beginner to PRO
1:58
Arduino Relay Module Tutorial - From Beginner to PRO
40.7K viewsFeb 7, 2025
YouTubeHuHamster
Arduino relay basics - how it works and how to use it
7:19
Arduino relay basics - how it works and how to use it
19.5K viewsNov 10, 2021
YouTubeTaste The Code
Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide
7:57
Lesson: 10 - How to Use a Relay Module with Arduino | Complete Beginner’s Guide
11.7K views8 months ago
YouTubeElectro Nerds Academy
Using 5V 1 channel relay module for Arduino
4:56
Using 5V 1 channel relay module for Arduino
308.1K viewsApr 2, 2017
YouTubeRobojax
Arduino Relay Control: A Beginner's Guide to Controlling Machines
1:48
Arduino Relay Control: A Beginner's Guide to Controlling Machines
16.6K viewsFeb 24, 2023
YouTubeCircuit Digest
8 Channel Relay Module - Complete Arduino Guide! ⚡🔌
0:40
8 Channel Relay Module - Complete Arduino Guide! ⚡🔌
4.7K views6 months ago
YouTubeArduino DIY Projects
5V Relay Module Tutorial for beginners Working, Wiring Explained #relay #arduino #scienceexperiment
2:48
5V Relay Module Tutorial for beginners Working, Wiring Explained #relay #arduino #scienceexperiment
1K views4 months ago
YouTubeHobbitainment
7:30
Control High Voltage Devices – Arduino Relay Tutorial
648.9K viewsSep 9, 2015
YouTubeHow To Mechatronics
2:13
How to use 5v relay module | Arduino UNO with 5v relay module [Code and circuit diagram]
41.5K viewsJun 9, 2020
YouTubeSriTu Hobby
6:45
Arduino Controlled Relay Module | Home Automation | Tutorial
19.8K viewsJul 31, 2020
YouTubeMish Mash Labs
4:56
Mastering Relay Modules: A Step-by-Step Guide to Harnessing Their Power!
1.3K viewsSep 9, 2023
YouTubeVEDTUBE (VED)
7:23
How to use 5V Relay with Arduino to turn ON and OFF AC bulb or DC load RJT33
586.8K viewsDec 26, 2017
YouTubeRobojax
11:51
How to use 2 channel relay to control AC and DC loads in Arduino RJT34
216.8K viewsDec 26, 2017
YouTubeRobojax
9:34
Relay Module Explained | Control AC Devices with Arduino | Single & 4 Channel Relay Working
25 views1 month ago
YouTubeCYFI
17:33
How to use 4 channel Relay to control AC load with Arduino code RJT71
183.2K viewsMar 27, 2018
YouTubeRobojax
13:33
Relay Module Explained | How Relay Works in Arduino & Electronics
26 views3 months ago
YouTubeAsim Ghafoor
6:49
Lesson 29 – Relay Module
67 views1 month ago
YouTubeAsawari Shiposkar
8:57
How to control 12VDC relay module with Arduino
2.1K views9 months ago
YouTubeElectronics Lab
4:36
Using Relay Switch With Arduino
17.4K viewsJun 27, 2024
YouTubeTechsPassion
6:32
How to use 12VDC relay with Arduino Uno
2.4K views11 months ago
YouTubeElectronics Lab
5:30
How to use a 5v Relay with an Arduino. (Relays simply explained)
1.3K viewsApr 12, 2025
YouTubeSEROS
12:50
4 Relay module interface with an Arduino UNO. #electronics #arduino #iot #arduinoproject #tutorial
3.3K viewsFeb 26, 2025
YouTubeLearning Microcontrollers
5:26
Arduino Relay Modules | Proteus Library
55.4K viewsNov 28, 2023
YouTubeELECTRONICS TREE
5:11
HOW TO INTERFACE 5V 4 CHANNEL RELAY MODULE WITH ARDUINO
118.1K viewsAug 6, 2018
YouTubeMYTECTUTOR
5:02
What is Relay? | How to control Relay using Arduino
110K viewsMay 1, 2021
YouTubehash include electronics
12:30
How to use relay with Arduino to control AC or DC load with bare relay RJT129
89.9K viewsOct 13, 2018
YouTubeRobojax
13:29
How to use 12VDC Relay Module with Arduino
43K viewsJul 29, 2022
YouTubeElectronics Lab
11:36
HOW TO USE RELAY MODULE WITH ARDUINO | 4 RELAY MODULE ARDUINO | RELAY MODULE | 5V RELAY MODULE
17.6K viewsSep 11, 2022
YouTubeProject Weekend
4:18
How to interface 2 Channel Relay Module with Arduino - Arduino UNO Tutorial
6.3K viewsApr 14, 2021
YouTubeCircuits DIY
See more

Short videos

0:40
8 Channel Relay Module - Complete Arduino Guide! ⚡🔌
4.7K views6 months ago
YouTubeArduino DIY Projects
1:48
Connecting the relays #arduino #relays
77 views1 month ago
YouTubeAlpaslan durmuş
0:31
Day 6 of 30 ⚡ Relay Module | Control AC Devices with Arduino 😳
785 views3 weeks ago
YouTubeInnovaEdge Technologies
0:48
Relay Control Using Arduino #arduino #raindetector #arduinoproject
2 views3 months ago
YouTubeRedHill Softec
0:13
Modul Matrix 12 Channel Relay System Overview
272.8K viewsMay 5, 2025
TikTokwahanaautolight
1:08
Control High Voltage with Arduino! Relay Module Full Tutorial
148 views5 months ago
YouTubeArduino with anmol
0:16
Relay module pcb how to connect
1.5K views2 months ago
YouTubeTELEZUD
0:33
How to Use 2-Channel Relay Module | Arduino Projects #robotics #arduinoproject
3.1K views7 months ago
YouTubeArduino DIY Projects
0:15
Learn how to control a relay with Arduino! In this beginner project, we blink an LED using
2.1K views8 months ago
YouTubeEcempire
0:13
How to Use a RELAY | ARDUINO #41 #arduino #arduinoproject
4.7K views8 months ago
YouTubeElectroCodeur
0:29
Arduino to Relay Module Connection | 4 Channel Relay with Arduino UNO
2K views7 months ago
YouTubeDon't fear
0:35
How to Control AC Devices Using a Relay and Arduino | Relay Basics
1.2K views6 months ago
YouTubeElectroPraxis
0:32
Control 8 relay channels wirelessly using Arduino UNO and Bluetooth
565 views4 months ago
YouTubeArduino Expert
0:32
Arduino UNO and 4 relay module. Tutorial. #electronic #circuit #engineering #control
944 views5 months ago
YouTubeLearning Microcontrollers
0:46
5V Relay Module Tutorial | Working, Wiring, NC NO Explained#shorts #arduino
1.6K views4 months ago
YouTubeHobbitainment
0:51
아두이노 1채널 릴레이 모듈로 전기를 제어해보자! | Control Electricity with an Arduino 1
2.1K views5 months ago
YouTube에듀이노EDUINO
0:20
Relay pinout. #youtubeshorts #youtubevideo #tech #arduino #education
858 views5 months ago
YouTubeKhalifa Tech
0:10
Arduino diy projects | nodemcu esp32, relay #diy #arduino #electronic
2.1K views6 months ago
YouTubeHelius DEV
0:22
Arduino Nano with Touch Sensor & Relay Module | KitKraft Touch Control Project
1.2K viewsSep 11, 2024
YouTubeKitKraft
0:19
Relay. #youtubeshorts #electrical #technology #tech
637 views2 months ago
YouTubeKhalifa Tech

Shop arduino relay module

Sponsored
About our ads
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
Amazon.com
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
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
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
48% off
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
$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% off
$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

Shop arduino relay module

Sponsored
About our ads
$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
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (24V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
Amazon.com
$2.70
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
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
$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
210
$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
$13.99
AITRIP 2PCS 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger For Arduino
Amazon.com
$13.99
AITRIP 2PCS 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger For Arduino
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
$2.10
$5.99
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
64% off
$2.10
$5.99
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$1.30
5V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.30
5V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$37.59
$46.99
8-Channel 5V Solid State Relay Module For Arduino
eBay
20% off
$37.59
$46.99
8-Channel 5V Solid State Relay Module For Arduino
eBay
$28.68
Pqmega 1 Pcs. X Relay Module Compatible With Arduino 5 Vdc 250 Vdc 10 A A4282
Everymarket INC
$28.68
Pqmega 1 Pcs. X Relay Module Compatible With Arduino 5 Vdc 250 Vdc 10 A A4282
Everymarket INC
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
Amazon.com
$15.99
DWEII 4Pack 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
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
$18.99
Cenrykay 5V 1 Channel Relay Module10pcs 5V Relay Module Board Switch Optocoupler Support High And Low Level Trigger For Arduino
Amazon.com
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$14.99
12V Delay Relay Module NE555 Chip For Arduino - 3Pcs Power On Delay Circuit
Evalm
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$11.18
Hibctr 12V 8-Channel Relay Module With Optocoupler Isolation - High/Low Level Trigger 10A 250VAC For Arduino/PLC Industrial Control
Amazon.com
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
48% off
$2.15
$4.17
Estardyn 6-30V Relay Module Timer Switch Adjustable Delay Cycle ON/OFF Control For Arduino DIY
Aliexpress
$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% off
$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