|5V 10A 2 channel relay module shield for Arduino ARM PIC AVR DSP electronic relay. The item is a 24v 2-channel relay interface board, it can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on. If you have ever had a project that required an interface with a high power device that needed AC or DC voltage and high current levels you have probably already discovered that attempting to control those devices directly with your Arduino, Raspberry PI and other Microcontroller or Microprocessor can be a real challenge. This board is designed to interface easily with your 5V IO’s without consuming much current on your IO pins. Relay contact capacity 250V10A. Relay output normally open, normally closed. Low level valid. 5V relay signal input voltage range, 0-5V. VCC power to the system. JD-VCC relay in the power supply. The default 5V relay. JD-VCC and VCC can be a shorted. Ring Instructions, VCC: System power cathode. GND: System power cathode. IN1-IN2: Relay control port.