digital alarm clock

Posted on Feb 6, 2014

Most of the LCD issues are due to Delay routines only. First try to interface LCD properly then try for your digital clock. Step by step approach is important. You may refer to LCD tutorial which is in tutorial section. code is ok i check it on Proteus it is working well here is the file u can see it firstly try a led blinking program that clearthe hardware doubt still this

digital alarm clock
Click here to download the full size of the above Circuit.

code can `t tell us that is hardware issue of software Logic contentions detected often come when lcd is driving in 4 bit mode or there is a logically wrong connections let say u joint a vcc and ground then this error come also

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