Part of the program is a calendar, using a AT89C52 microcontroller, and the time in the 1602 liquid crystal display, through the key operation can be time-accurate changes.

1602yejingwangnianli
....................\LCD1602.pdf
....................\yejingshiz
....................\yejingshiz.hex
....................\yejingshiz.lnp
....................\yejingshiz.M51
....................\yejingshiz.plg
....................\yejinshiz.c
....................\yejinshiz.LST
....................\yejinshiz.OBJ
....................\yejinshiz.Opt
....................\yejinshiz.Uv2
....................\yejinshiz_Opt.Bak
....................\yejinshiz_Uv2.Bak

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