Re: Another newbie question: how to connect a relay?
Posted: Thu May 21, 2015 6:14 amYou connect 5V to the VCC pin (since it's a 5V coil relay).
Connect GND pin to ground on both 5V and 3.3V power supplies.
Connect ESP8266 GPIO to the middle signal pin. You do not need a level shifter since it does to the gate of the mosfet.
Connect GND pin to ground on both 5V and 3.3V power supplies.
Connect ESP8266 GPIO to the middle signal pin. You do not need a level shifter since it does to the gate of the mosfet.