How to power a NodeMcu v3 lolin without having to use USB.

[Thiago Santos]

Hello, I'm new here and new with Arduino and I'm in a school project that is to make a wireless lighting so I chose a NodeMcuV3 lolin with an ESP8266 chip with and I wanted to know how to power it without having to put it on the usb.
I made a schematic and wanted to know if it is correct.

https://prnt.sc/Fz8GRlyjKDQz

if you want to make your style and help me

https://prnt.sc/TAKs7rNfgyPI

in case you didn't show up

https://postimg.cc/gallery/VtfyDZx

 

[Eximo]

AC to DC converter with an input from mains voltage to power the board.
A DC controlled AC switch with an input from the board.

As long as the program can send 5V DC to that pin, it should control the AC lightbulb.

Seems straightforward enough.

 

[Alabalcho]

First and foremost: Be extremely careful what you do with 240VAC mains - this is not a toy! Have a responsible adult supervising you when you make the connections.

As for your project: I would use USB power bank to power your project, and relay box (not a board) between the AC outlet and the lamp. This would be most safe way to play with this.

Something like that: https://dlidirect.com/collections/frontpage/products/iot-power-relay