@metawops I have no idea what the factory sketch is supposed to do!
Thats why I made my HotHead example, to debug and get it running.
I studied the code and made the Hothead tempsensor and a FPS version (not included in the repository that I posted) to determine Frames Per Second.
I also added the LCD backlight ON command to HotHead, after both displays "went dead". This revived them.
The factory tft.ino included in the factory download just shows you how to learn the tft.drawsprite and sprite.drawString functions, with examples.
If the LilyGO is really stuck you can try the black reset button on the back and/or the "left" (when holding it vertical with the USB down) button marked "BOT" (boot) in various combinations to clear it
I don't know if the font format of U8G2 is consistent with that of GXEPD. It is recommended that you refer to the font modification of GXEPD, which indicates that it is a subclass of Adafruit_GFX.
For 3-5 first display updates the time string is printed weakly, how can I fix it? I use the code from official sample.
-> Refresh the area multiple times to deepen the color, or use full screen refresh.
Which batteries can I use with this module?
How can I check the battery charge level and charging status?
->The module is equipped with a 1.25 pitch battery interface, which can be powered by batteries
How can I turn off the red blinking led?
->The red LED is the battery indicator, flashes when there is no battery.
Is there any other recommendation for power-save?
->Hibernate enters deep sleep. The deep sleep power consumption reaches about 10uA