51MCU program, control lamp,water heater by relay. After the program start, key 1 set tens digit of hours, key 2 set single digit of hours, key 3 set tens digit of minutes, key 4 set single digit of minutes, key 5 set the initial status of relay, key 6 will start timing. Once time is to 0 , relay will reverse.

延时继电器开关\LYDZ
..............\LYDZ.hex
..............\LYDZ.lnp
..............\LYDZ.M51
..............\LYDZ.plg
..............\LYDZ.uvgui.Administrator
..............\LYDZ.uvgui.zhangwei
..............\LYDZ.uvgui_Administrator.bak
..............\LYDZ.uvopt
..............\LYDZ.uvproj
..............\LYDZ_uvopt.bak
..............\LYDZ_uvproj.bak
..............\l_key.c
..............\l_key.LST
..............\l_key.OBJ
..............\STARTUP.A51
..............\STARTUP.LST
..............\STARTUP.OBJ
延时继电器开关

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