5V 4 Channel Relay Module

This relay module consists of 4 relays. Each relay is connected to a current buffer so that you can connect them directly to a Microcontroller or Arduino. Using these relays you can easily control high power devices or appliances using arduino or microcontrollers, the relay is rated for 230V 10Amps. The Module has 5 LED’s, one for power and 4 for indicating relay signals. Specifications Rating: 10A (250V AC or 30 V DC) Input (Control) voltage: 5V DC How to connect The connections to your Arduino (or microcontroller) side: VCC – supply voltage. 5V from my Arduino. IN1 – set to HIGH to set the relay to its “default” state, set to LOW to switch the relay to its alternate state IN2 – same as IN1, but controls the second relay on the board IN3 – same as IN1, but controls the second relay on the board IN4 – same as IN1, but controls the second relay on the board GND – ground