Hey guys, I have a project I am making where I need to both power an LED that operates with a 9V supply and an Arduino with the same 9V. However, I need the LED to turn on when a port on the Arduino sends an output as "HIGH". How can I go about wiring this, and what do I need to make this work? Con…

Voltage "Switch"

anon57585045 October 19, 2017, 11:08pm 4

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