5V 8-Channel Relay interface board, and each one needs 15-20mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Indication LED's for relay output status
Standard interface that can be controlled directly by microcontroller
The 8 Channel 5V Relay Shield Module can to control various appliances, and other equipments with large current. It can be controlled directly by Microcontroller(Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
1 x 8 Channel Relay Module
14cm x 5.7cm x 1.7cm (5.51inch x2.24inch x 0.67inch)
The description says these relays can be directly controlled by an Arduino. In fact, you need to use a transistor for each relay as the input pins need to be switched to ground to activate the relays . As long as you recognize this limitation, this is a great product. Also, use a separate 5V power supply. It is easy to overload the Arduino UNO 5V source.
