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m5stack / M5StickC

M5StickC Arduino Library
MIT License
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How to put LCD to sleep #78

Closed takanotume24 closed 4 years ago

takanotume24 commented 4 years ago

I want to save power during DeepSleep, so I want to make the LCD sleep. I found “Sleep-In Mode” on page 30 of https://github.com/m5stack/M5-Schematic/blob/master/Core/ST7735S_v1.1.pdf. Can I migrate from software to this? Or is there a way to save power as well? I tried M5.Axp.ScreenBreath (7), but it seems that the battery runs out within one day even with DeepSleep.

EeeeBin commented 4 years ago

Try test it: https://github.com/m5stack/M5StickC/blob/master/examples/Advanced/AXP192/sleep/sleep.ino _M5.Axp.DeepSleep(SLEEPSEC(20)) will close tft By test DeepSleep also used 2~3 ma current

dave-sausages commented 4 years ago

I've found an issue: If you call "M5.Axp.DeepSleep" but then press the power button once, the current consumption goes from 3ma to 17ma but doesn't wake up. It took me hours to work out why my battery kept going flat. How do I avoid this?

tanakamasayuki commented 4 years ago

AXP sleep is not the same as ESP32 sleep. The power button clears AXP sleep. They are not interlocked. Must be checked by INT interrupt or polling from ESP32.

I don't recommend either...