How to turn the power off when there is a 18650 battery installed?

Xinyuan-LilyGO / LilyGo-LoRa-Series

LILYGO LoRa Series examples

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How to turn the power off when there is a 18650 battery installed? #57

Closed HouzuoGuo closed 1 year ago

HouzuoGuo commented 2 years ago

Hello, I have a simple generic sketch running on the TTGo T-Beam (board revision v1.1, 20191212). The sketch displays an image on OLED and that's about it.

When T-Beam is only powered by USB, I can turn the board off by pressing the power button for ~6.5 seconds. However, this does not turn the board off when the board is only powered by a 18650 cell.

So how does the power button work when there's a battery installed?

lewisxhe commented 1 year ago

For AXP192, press and hold the PWR button for 6 seconds to turn off the power