4 relay module optocoupler isolation module control board 12V DC12V optional
4 opto isolation module board relay module optional 12V DC12V
Module size: 7cm * 5.3cm
Low level control pull
Can control a variety of household appliances, and high current load
【Features】
Using a large current relay, AC250V 10A DC30V 10A
Contact part of the independent wiring, safe and reliable
Standard interface, you can expand on a variety of development boards
With fixed screw holes, easy to install
Applicable to 51 / AVR / AVR / ARM and other platforms
【Products include】
4 relay extension board
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