2 Channel 5V Relay Module with Optocoupler

This is a 5V, 10A 2-Channel Relay interface board. It can be used to control various appliances, and other equipments with large current. It can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). It has a 1x4 (2.54mm pitch) pin header for connecting power (5V and 0V), and for controlling the 2 relays. The pins are marked on the PCB:- GND - Connect 0V to this pin. IN1 - Controls relay 1, active Low Relay will turn on when this input goes below about 2.0V IN2 - Controls relay 2, active Low Relay will turn on when this input goes below about 2.0V VCC - Connect 5V to this pin. Is used to power the opto couplers Specification:- High current relay, AC250V 10A, DC5V 10A 2 LEDs to indicate when relays are on Works with logic level signals from 3.3V or 5V devices Opto isolation circuitry