4-Channel Relay Module - Arduino Tutorial

Interfacing a 4 channel relay with an Arduino Uno is a simple and efficient way to control AC/DC appliances. A relay is an electrically opera

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Getting Started With The 4 Channel Relay Breakout - BC Robotics

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1 Channel 3V Relay High Level Driver Module Optocoupler Relay Module for ESP8266 Based Board: : Industrial & Scientific

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1-channel 2-channel 4-channel Relay Module 3V 3.3V Low Level Trigger Relay

Arduino Relay Module Tutorial

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5V Four-Channel Relay Module - Pin Diagram, Specifications, Applications, Working

4-Channel Relay Module Arduino Tutorial, 58% OFF

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SunRobotics Relay Module 5V 1Channel /2 Channel /4 Channel /8 Channel / 16 Channel at Rs 55/piece, Ahmedabad