Hello, I am confused on how to connect a relay to the arduino uno. This is my relay: http://www.instructables.com/id/SEEED-Studio-Arduino-5V-Relay-module-Digita/step3/Understand-your-RELAY-BRICK/ Do i need to do the circuit below first before connecting or is it already in the relay? I noticed th…

RELAY connection to ARDUINO UNO, PLease help.

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