Amazon.com: ACEIRMC 5V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR (1pcs) : Electronics
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Eletechsup DC 12V 8 Channel Pro Mini PLC Board Relay Shield Module for Arduino Multifunction Delay Timer Switch Board (8ch Relay Board): Amazon.com: Tools & Home Improvement
Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive
5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific
Amazon.com: 5V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (5V-2Channel) : Industrial &
Amazon.com: Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home, Industrial Control, Robot : Electronics
Amazon.com: seeedstudio - Relay Shield v3.0 - DIY Maker Open Source BOOOLE : Electronics
Amazon.com: SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM : Electronics
One 1 Channel 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger Power Supply Module for Arduino: Amazon.com: Industrial & Scientific
HiLetgo 3pcs 5V D1 Mini Relay Shield 5V Relay Module 1 Channel 5V Relay Shield: Amazon.com: Industrial & Scientific
![Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71KE6-MWBzL.jpg "Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific")
Arduino 4 Relays Shield [A000110]: Amazon.com: Industrial & Scientific
Amazon.com: 5V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 1 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 10PCS (5V-1Channel)… : Industrial &
Amazon.com: CANADUINO® 8-Channel Stackable I2C Relay Shield for Arduino - DIY Kit : Industrial & Scientific
Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific
Amazon.com: ARCELI 5PCS 5V One Channel Relay Module Board Shield 5v Relay Module for PIC AVR DSP ARM for Relay : Electronics
1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific
![Amazon.com: Arduino MKR Relay Proto Shield [TSX00003] : Industrial & Scientific](https://m.media-amazon.com/images/I/41pnJ13EtWL._AC_UF894,1000_QL80_.jpg "Amazon.com: Arduino MKR Relay Proto Shield [TSX00003] : Industrial & Scientific")
Amazon.com: Arduino MKR Relay Proto Shield [TSX00003] : Industrial & Scientific
Amazon.com: seeedstudio - Relay Shield v3.0 - DIY Maker Open Source BOOOLE : Electronics
Amazon.com: KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board : Electronics
8 Channel DC 5V Relay Module Shield Low Level 8 CH Relay Board for Arduino Uno Meage 2560 1280 ARM PIC AVR DSP 8550: Amazon.com: Industrial & Scientific
