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LilyGO / TTGO-T8-ESP32

esp32-i2s-sdcard-wav-player
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red/blue LEDs #3

Open carstenblt opened 5 years ago

carstenblt commented 5 years ago

Hi there, there are two LEDs on the board that I find are not connected to any GPIO. Am I just missing the right one? Any way to disable them via software?

Thanks in advance.

thomasleveil commented 5 years ago

The blue LED is power, I don't know if it can be controlled The green LED can be controlled with GPIO21 The red LED: I'm still trying to figure this out

wieb18 commented 5 years ago

There is only 2 LEDs on this board, BLUE (power indicator) and GREEN (wifi indicator). The GREEN LED can be controlled with GPIO21. To turn off the BLUE LED, power the board with Lithium battery interface.

heeen commented 5 years ago

the blue LED is connected to the battery charging controller, it goes off if the battery is not charging the red LED is supposed to light when the board is powered, but it is not working for me, neither from USB, nor from a battery

heeen commented 5 years ago

@LilyGO is it a known issue that the red led is not working?

tionebrr commented 5 years ago

Wait, there is a red led ? Doesn't work on my board neither then.

tionebrr commented 5 years ago

Okay, just looked at it closely, the red led (LED_G2) is implanted but R22 (the 1k brake) is not. If you want the red led to work you will need to solder the 0402 resistor. I believe they didn't implanted it to avoid draining batteries continuously. Better to blink LED_G1 (IO21) when needed

tionebrr commented 4 years ago

What is the T18?

patrickelectric commented 1 year ago

My RED led is blinking like crazy, how do I control it ?