MicroPython Forum (Archive)

Noob-Question:
I want to power the NodeMCU with my Travel USB-Adapter for my Smartphone.
It is a "Samsung ETA0U81EBE" with the following specifications:

Input: 100-240V
Output: 5V, 1.0A

Would this be ok for the NodeMCU?
Or would you advise me from powering the NodeMCU with this Travel Adapter? Why?

Thank you very much.

(I am a 100% noob in this kind of topics... I think my USB2.0-Port has just 500mA (5V))

It's perfectly fine.

The ESP8266 needs up to 300mA to work. Your apater provides up to 1000mA, so you even have a lot of spare current for powering anything you plan to connect to your board, like, say, a display.