to download the document : http://wiki.sunfounder.cc/index.php?c=downloadscs&a=Manualdetails&id=126&name=Modules Specification : This is a 5V 8-Channel Relay interface board, Be fit to ascertain different appliances, and early equipments with big flow. It can be directly by Microcontroller -LRB- Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic -RRB-. Package : * 1 x 8 Channel Relay Module .
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