Hello, I am new to the forum and immediately have a question :) I have an ESP8266 ESP-12E NodeMCU V3 module that I would like to power with batteries. I also have a basket for 4 AAA batteries, which give a total of 6V. And now my question, can you recommend me maybe the best way to make 5V from...

For a stabiliser that has DO 0.5V to work, the difference must be at least 0.5V. So it will be OK.

And won't the difference between input and output voltage be too small for the stabiliser? Added after 4 [minutes]: Because when I look at the specs on the internet, I see that usually around 2V there should be a difference

But with quite a bit of current, as esp takes a bit in spades

Thanks and maybe you know of a specific stabiliser? because now I find ones with a max dropout voltage of 0.5V. But it's always me closer Added after 36 : 1A is enough?

And what does the circuit's datasheet note say about current draw? I think that's about right? What is wrong with them?

Hello, the ESP module should be supplied with a voltage in the range of 3-3.6V

From what I have found it is so 200-300mA. And that in my case is not 1V? Added after 2 [minutes]: This my module can be 5V

Well yes, I blacked out, sorry for the confusion and thanks for the conversion And as for that 1A, I think it will be fine, better to have some stock

The ESP-12E will not survive five volts.

but it's a nodemcu and it has a voltage regulator

How to power the ESP-12E NodeMCU V3 from a 6V AAA battery?

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#1 16104409 04 Dec 2016 16:34

Poczatkujacy11 Poczatkujacy11

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Post #1
16104409 04 Dec 2016 16:34

Hello, I am new to the forum and immediately have a question
I have an ESP8266 ESP-12E NodeMCU V3 module that I would like to power with batteries. I also have a basket for 4 AAA batteries, which give a total of 6V. And now my question, can you recommend me maybe the best way to make 5V from 6V? Because this is the voltage that the module should be powered with
Thank you in advance for your answer.
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#2 16104444 04 Dec 2016 16:50

cyann cyann

Level 20

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Post #2
16104444 04 Dec 2016 16:50

Inverter or linear stabiliser.
#3 16104647 04 Dec 2016 18:14

Poczatkujacy11 Poczatkujacy11

Level 7

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Post #3
16104647 04 Dec 2016 18:14

And won't the difference between input and output voltage be too small for the stabiliser?

Added after 4 [minutes]:

Because when I look at the specs on the internet, I see that usually around 2V there should be a difference
Helpful post

#4 16104793 04 Dec 2016 18:52

cyann cyann

Level 20

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Post #4
16104793 04 Dec 2016 18:52

Look for LDO stabilisers
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#5 16104813 04 Dec 2016 18:58

Anonymous Anonymous

Anonymous

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Post #5
16104813 04 Dec 2016 18:58

But with quite a bit of current, as esp takes a bit in spades
#6 16104846 04 Dec 2016 19:10

Poczatkujacy11 Poczatkujacy11

Level 7

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Post #6
16104846 04 Dec 2016 19:10

Thanks and maybe you know of a specific stabiliser? because now I find ones with a max dropout voltage of 0.5V. But it's always me closer

Added after 36 [seconds]:

1A is enough?
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#7 16104863 04 Dec 2016 19:13

cyann cyann

Level 20

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Post #7
16104863 04 Dec 2016 19:13

Poczatkujacy11 wrote:
1A is enough?

And what does the circuit's datasheet note say about current draw?

Poczatkujacy11 wrote:
because I now find such with a max dropout voltage of 0.5V.

I think that's about right? What is wrong with them?
#8 16104945 04 Dec 2016 19:44

olo olo

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Post #8
16104945 04 Dec 2016 19:44

Hello, the ESP module should be supplied with a voltage in the range of 3-3.6V
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#9 16104956 04 Dec 2016 19:49

Poczatkujacy11 Poczatkujacy11

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Post #9
16104956 04 Dec 2016 19:49

From what I have found it is so 200-300mA.
And that in my case is not 1V?

Added after 2 [minutes]:

This my module can be 5V
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#10 16105027 04 Dec 2016 20:13

cyann cyann

Level 20

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Post #10
16105027 04 Dec 2016 20:13

Poczatkujacy11 wrote:
And this in my case is not 1V?

For a stabiliser that has DO 0.5V to work, the difference must be at least 0.5V.
So it will be OK.
#11 16105042 04 Dec 2016 20:19

Poczatkujacy11 Poczatkujacy11

Level 7

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Post #11
16105042 04 Dec 2016 20:19

Well yes, I blacked out, sorry for the confusion and thanks for the conversion And as for that 1A, I think it will be fine, better to have some stock
#12 16158439 29 Dec 2016 18:18

el2010tmp el2010tmp

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Post #12
16158439 29 Dec 2016 18:18

Poczatkujacy11 wrote:
to make 5V from 6V? Because that's the voltage the module should be powered with

The ESP-12E will not survive five volts.
#13 16158559 29 Dec 2016 19:00

Anonymous Anonymous

Anonymous

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Post #13
16158559 29 Dec 2016 19:00

but it's a nodemcu and it has a voltage regulator
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