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Option for simple GPIO12 On/Off LED #3064

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yllwfsh opened this issue May 6, 2024 · 3 comments
Open

Option for simple GPIO12 On/Off LED #3064

yllwfsh opened this issue May 6, 2024 · 3 comments
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enhancement New feature or request

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@yllwfsh
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yllwfsh commented May 6, 2024

The Feature

Dear all,

First of all thx for this amazing project! Would it be possible to add functionality for a simple On/Off LED, on GPIO12? I would like to switch a simple white LED. Right now I have it connected directly to 5V, and therefore always on.

Would be great if it's possible to switch it on using GPIO12 (and possibly a transistor) just when taking a picture of the meter.

Functionality would need to include inverting the logic (e.g. selecting Active HIGH/LOW to allow for a transistor to switch the load).

Thanks for looking into this!
@yllwfsh yllwfsh added the enhancement New feature or request label May 6, 2024
@jasaw
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jasaw commented Jun 3, 2024 •
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@yllwfsh GPIO4 goes HIGH when it takes photo and I have my white LEDs connected to it via transistors and it's working well.
https://randomnerdtutorials.com/esp32-cam-ai-thinker-pinout/

@yllwfsh
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yllwfsh commented Jun 3, 2024

@jasaw True! But that still switches on the built-in Led. Wouldn't it be a more flexible solution if we were able to pick a different GPIO pin?

@jasaw
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jasaw commented Jun 5, 2024

I believe the GPIO4 still goes high even if you configure the LED intensity to 0, so that basically turns off the onboard flash LED and relies on your external LEDs. Test it out.

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