Function of LED - Githubissues

Xinyuan-LilyGO / TTGO-T-Display

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Function of LED #21

Open jmarchewka opened 4 years ago

jmarchewka commented 4 years ago

In looking at the schematic, the LED (it says RED but mine is blue?) seems to be connected to the CHRG line on the TP4054 LiPo charger IC. If I am reading the datasheet of the TP4054 correctly, the CHRG will go high once the charge cycle is complete, which should cause the LED to turn off. I have left my 1600mah LiPO battery connected for 36 hours and the LED never went off. Is my assumption wrong?

mhannebert commented 4 years ago

I'm not sure exactly where the blue LED is connected. The thing is mine turns on when it is charging - and off when fully charged.

radiohe4d commented 3 years ago

Mine is also a blue LED. I'm not using a battery, just running off the USB-C power.

Its on all the time and never goes off.

Is it possible to control this blue LED from the code?

nanosek commented 3 years ago

I would also be interested how to turn off this blue LED

Batlapin commented 3 years ago

"Is it possible to control this blue LED from the code?" Nope.