can anyone give me a programmable countdown timer circuit that last for more than 24 hours and has a LED display

 

can anyone give me a programmable countdown timer circuit that last for more than 24 hours and has a LED display

I assume you mean can anyone point you to a schematic of a countdown timer with the features you have indicated.

hgmjr

 

yupz. i really need it for my project.

 

please can you give me a design?. i hope to receive it sooner so i can start building the circuit.

 

Sounds like a good project for a microcontroller.