5V Relay Module With Optocoupler For Arduino

This is a 5V low level trigger 2/4/8-channel relay interface board that can be used to control various appliances and equipment with large current. It is equiped with high-current relays that work under AC250V 10A or DC30V 10A. It has a standard interface that can be controlled directly by microcontrollers like Arduino, Raspberry PI e.t.c . Each channel needs a 15-20mA driver current. It is optically isolated from high voltage side for safety requirement and also prevent ground loop when interfaced to microcontroller.

Fetures:

A Relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate the switch and provide electrical isolation between two circuits.

• This 8 channel 5V relay has both optical and magnetic isolation, providing a lot of protection to the inputs from electrical faults on the outputs.
• Works well with both 3.3V and 5V logic (Raspberry Pi, Arduino, Teensy..), requiring little current drive.
• Breadboard friendly, using female/male dupont makes it extremely convenient for prototyping.
• LED indicates its working status. Red refers to errors.
• 3 terminals per SPDT relay (Common, NO & NC)
• Input voltage level support TTL as well as CMOS