This interface board will allow you to connect your Raspberry Pi (rev 2.0, at least) to a SainSmart 8-Channel 5V Relay Module. The SainSmart board is powered by 5v and the relays are triggered by ...

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In electronic and industrial automation systems, relay modules play a crucial role by allowing low-power control signals to switch high-power devices. Selecting between a 5V relay module and a 12V ...