4 Channel Relay Shield for Arduino UNO

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https://www.electronics-lab.com/4-channel-relay-shield-arduino-uno/

4 Channel Relay Shield for Arduino UNO is a simple and convenient way to interface 4 relays for switching applications in your project. Very compact design that can fit on top of Arduino UNO. Project requires 12V DC supply, all 4 trigger inputs require TTL signal, Relay-1 to Relay-4 inputs connected to D8 To D11 […]

4 Channel Relay Board

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https://www.electronics-lab.com/4-channel-relay-board/

Quad Channel Relay Board is a simple and convenient way to interface 4 relays for switching application in your project. Features Input supply 12 VDC @ 170 mA  Output four SPDT relay  Relay specification 5 A @ 230 VAC  Trigger level 2 ~ 5 VDC  Berg pins for connecting power and trigger voltage  LED on […]