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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ESP_krzychb
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Joined: Sat Oct 01, 2016 9:05 am
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Re: Onboard LEDs Control

Postby ESP_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 ESP_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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