hello every one
this digital clock with temp indicator is very simple use any temp sensor and a ADC(analog to digital convertor) for temp indication and square wave gen of any freq and scale it to your µc for time that all, you may think how to scale it down its also simple you have CLK of certain freq then each pulse will be of certain µsec make your µc as counter then after some counts you will get your seconds then you indicate a change of time in seconds place