Onboard LEDs Control

i3creations
Posts: 4
Joined: Tue Oct 31, 2017 2:15 am

Onboard LEDs Control

Postby i3creations » Wed Dec 06, 2017 4:30 am

Hi,

There are 2 leds on my ESP32 NodeMCU module. One of them is on digital pin 2. Another is unknown to me. It lights up red when I power on the module. I would like to be able to turn it on and off and possibly change the color as well.

Is this possible?

Thanks for your help!

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krzychb
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Re: Onboard LEDs Control

Postby krzychb » Wed Dec 06, 2017 1:58 pm

Hi i3creations,

I guess the other LED is just indication that the 5V power supply is on.
This is at least what I see in the schematic of NodeMCU-32S.

If this is exact schematic of your very board, then you will not be able to turn it on and off and change the color.
Last edited by krzychb on Wed Dec 06, 2017 9:33 pm, edited 1 time in total.

i3creations
Posts: 4
Joined: Tue Oct 31, 2017 2:15 am

Re: Onboard LEDs Control

Postby i3creations » Wed Dec 06, 2017 9:29 pm

That's all I need to know.

Thanks!

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