This post will explain how to connect the relay board and outlet to wall power.
Wire the right screw of the outlet to the middle port of the relay. Wire the left screw of the outlet to the neutral wire of the cord that plugs into the wall. The left port of the relay connects to the hot wire of the cord that plugs into the wall. The ground of the outlet is connected to the green wire of the cord.
If working properly, when the light on the relay board is off then the outlet does not get power. When the light on the relay board is on then the outlet does get power.
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