I have the following diagram. If I connected a relay, I don't get enough energy to feed relay. Need I an external power? [Captura de pantalla 2017-09-03 14.56.02.png]

energy a relay. I don't have enough energy to feed a relay

mangulo September 3, 2017, 6:50pm 5

My relay is 5V dc and I want to feed from pin 5V VCC Arduino Relay and OLED LED. But I need more energy not?

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