We already have paper cups, paper diapers, and even paper airplanes, so why can’t we have paper batteries ?Newly emerging thin, flexible paper batteries, while not powerful enough to power everyday it
The previous article has completed the basic functions of the fingerprint management system.
This article adds screen brightness adjustment function based on the previous article.
The brightness adjus
This article combines the HTTP request weather data (through the "Xinzhi Weather" website) and lvgl display of pictures and time from my previous two articles , and adds calendar display and real-time