Module 1 relay 5V with optocoupler for ARDUINO

The five-volt single-channel relay module with optical isolation is designed to control a power load using Arduino or other controllers.

To use the relay module, you need to connect a controlled device to it. Then you need to connect 5V power to the VCC and GND pins of the module. Then you need to connect a microcontroller, computer or other control device to the IN control terminals of the relay module and start working.

The relay module has two interfaces - for connecting the control microcontroller and for connecting controlled devices to the relay. A 3-pin terminal block is used to connect the relay module to the control device. Contacts GND and VCC for connecting the supply voltage 5V, output IN for connecting the control signal.

To connect the load to the relay, there is a 3-pin terminal block on the board.
The relay module can be powered both from the control controller and from external power sources. A jumper can be used to select the level to be controlled high/low.

Technical parameters of the module:
Supply voltage, V 5
Relay operating current, mA 15 ... 20
Relay JQC-3FF-SZ
Module dimensions, mm 50 x 26 x 18