8-Relay Module, Opto-isolated

This 8-channel relay module features opto-isolation between the control-signal voltage and the relay coil supply (common ground).

While the module always requires +5V DC (Vccjd) to operate the relays, the control signal voltage (Vcc) can be anywhere between 3 to 5 VDC (i.e. most microcontrollers, including Arduinos). The control signals can be connected to a microcontroller GPIO or to e an open-collector output because the control signal is active low, meaning that the relay will be energized when the control signal is grounded (i.e. inverted logic). If the control signal for a given channel is floating (or at the control signal voltage), the relay is de-energized.

An on-board LED for each channel indicates the channel status

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Brand	Gringo Gadgets
Country of Origin	China
Model	GG-DIY-RM8
MPN	GG-DIY-RM8
UPC	811681034150

8 Channel Relay Module, 5V DC, Optoisolated, for 5V, 3V, 3.3V Microcontrollers

Specifications

Returns Accepted