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This is a 5V 8-Channel 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).
Works great! What a simple way to drive high current devices with Raspberry Pi. I built a sprinkler control system with it. Anyone could figure this thing out. Read morePublished 3 days ago by Rick Puccio
Relay has no docs. Problem is that the relays are not reliable and SainSmart support was NOT helpful at all.Published 5 months ago by Paul S.
The actual relays used like many of the others with issues, are crap. Over half of my don't work unless you tap them. Read morePublished 5 months ago by Amazon Customer