This product has been verified for use and is the best stable program after debugging.
Use microcontroller: 89c51
functions:
time and week, time control status, temperature display (LCD12232).
3 types of time control status can be switched with one button, one button switches the display, and 2 sets of time control settings are saved after power off.
Circuit module:
DS1302, LCD12232, LM317, AT24C04, DS18B20
Communication used: iic, spi, single bus
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