Power NodeMCU with Travel USB-Adapter?

All ESP8266 boards running MicroPython.
Official boards are the Adafruit Huzzah and Feather boards.
Target audience: MicroPython users with an ESP8266 board.
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ZKDMun
Posts: 42
Joined: Thu Nov 24, 2016 2:34 pm
Location: Hamburg

Power NodeMCU with Travel USB-Adapter?

Post by ZKDMun » Sun Jan 08, 2017 1:15 pm

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))

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deshipu
Posts: 1353
Joined: Thu May 28, 2015 5:54 pm

Re: Power NodeMCU with Travel USB-Adapter?

Post by deshipu » Sun Jan 08, 2017 1:35 pm

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.

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