Powering Relays (Relay Output)

WARNING: You should prevent the powered device from pulling more power then it can handle. This can be done with a fused setup. I am not going to cover this in the tutorial. Also not that working with mains and AC house current IS DANGEROUS. Proceed at your own risk....

Powering Relays (Relay Input)

This is part one of a two part guide. When I get a free moment I will show you how to harness the output in another guide. Here is a sample guide with how I set up a SainSmart Relay powered by a Raspberry Pi. There seems to be a lot of confusion about how to hook...