8 channel relay control panel PLC relay 5V module With optocoupler for arduino This item is a 5V 8-Channel Relay interface board,It can be controlled directly by a wide range of microcontrollers such as for Arduino, AVR, PIC, ARM and so on. Features: 8-Channel Relay interface board. Each one needs 15-20mA Driver Current. Equiped with Read more about 8 channel relay control panel PLC relay 5V module With optocoupler for arduino[…]