Arduino Relay Tutorial - Control High Voltage Devices with Arduino
Amazon.com: SunFounder 5V 8 Channel Relay Shield Module for Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+ : Electronics
High/low Level Trigger 8 Channel Relay Control Panel Plc Relay 5v Module For Arduino Hot Sale In Stock.8 Road 24v Relay Module - Integrated Circuits - AliExpress
Amazon.com: SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM : Electronics
1PCS 8 Channel 3.3V Relay Module 3V Optocoupler Module 8 Way Relay Control Board: Amazon.com: Industrial & Scientific
8 Channel I2C Interface Electromagnetic Relay Module for Arduino Raspberry 3.3V 5.0V 10A Peak LEDs Indicators for Each SSR Relay Channel Control AC DC Voltage: Amazon.com: Industrial & Scientific
5V/12V/24V 8 Channel Optocoupler Relay Module Board with High/Low and Trigger Power Indicator Light(24V): Amazon.com: Industrial & Scientific
Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific
Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else