LED on ESP32

[pmknowles]

Got mine working well with 5 EQ3s so thank you.
Not a programming issue but, nevertheless, would be useful. The LEDs on my ESP32s are painfully bright. It would be good to have a command to turn them off or only flash if there was an issue (loss of WifFi, MQTT or low battery on the EQ3).

[softypit]

Which ESP32 module are you using?

[pmknowles]

I think it's a Sparkfun one. It has a green and blue LED which will light the room at night!! Regards Phil Sent from Outlook Mobile<https://aka.ms/blhgte>

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________________________________ From: paul <[email protected]> Sent: Thursday, March 5, 2020 8:02:11 PM To: softypit/esp32_mqtt_eq3 <[email protected]> Cc: pmknowles <[email protected]>; Author <[email protected]> Subject: Re: [softypit/esp32_mqtt_eq3] LED on ESP32 (#53) Which ESP32 module are you using? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fsoftypit%2Fesp32_mqtt_eq3%2Fissues%2F53%3Femail_source%3Dnotifications%26email_token%3DAI5KPM3ZXV45W7KUKZISDWLRGAAMHA5CNFSM4LCJ2DNKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEN6WKAA%23issuecomment-595420416&data=02%7C01%7C%7Cc09eaad2cfde496b651b08d7c1401832%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637190353328986894&sdata=PAooeeX9TFPWScxRmb75FkhzV5%2BLCI5kcpWEaGijzyw%3D&reserved=0>, or unsubscribe<https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAI5KPM5IHKU7NBOBWJDLDODRGAAMHANCNFSM4LCJ2DNA&data=02%7C01%7C%7Cc09eaad2cfde496b651b08d7c1401832%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637190353328986894&sdata=FJXLOP0UJwmz6K7ZzjvcJGwEgdUgzMDXov34uKOzeoU%3D&reserved=0>.

[softypit]

The ESP32 boards I have seen use either gpio2 or gpio5 for an indicator LED. I believe the sparkfun boards also have an LED permanently connected to power (there may be a bridge/link you can remove to disable this).
This application uses GPIO2 for a status indicator as it is based around a generic WROOM32 devkit from ebay.
Check which GPIO your board uses for its second LED by looking up the schematic or hookup guide.

Regards.

Paul.