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DIY PC817 2-CH 5V Relay Module w/ Optocoupler Extension Board - Blue
This is a 2-Channel 5V Relay interface board£¬ be able 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). Equiped with high-current relay£¬ AC 250V 10A ; DC 30V 10A With 4 fixed screw holes£¬ hole diameter: 3.1mm; Optical coupling isolation£¬ good anti-interference; VCC system power£¬ JD_VCC relay power£¬ default 5V relay£¬ just plug in jumper cap; Indication LED's for Relay output status Great for DIY project