Dot matrix clock + weather display + room temperature and humidity

Principle and function:
    Three 8*8 dot matrix *max7219 controlled dot matrix clock, using the weather and sensor display to display the weather and room temperature humidity. The outer casing is black transparent acrylic. No new functions have been developed yet.
    smartConfig distribution network, touch T3 (GPIO15) Long press to clear wifi information to facilitate network reconfiguration! Enter light sleep from 23:00 to 6:00 in the evening;
    the program is relatively simple and has not been optimized yet!
    Note: The DS1302 clock chip and CR2032 battery holder are reserved on the PCB. This function has not been enabled yet. If necessary, most of the logic in the program loop may need to be changed.
During the compilation process, please register your own weather and cover the area below with the private key. The pinyin at the back is the city spelling. Please replace it yourself. If the font is not complete, please add it yourself.