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0 to 999 hour counter

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New Member
i need o to 999 hour seven segment based count up meter circuit and hex files for my generator.
please any body help my to design its hardware and hex also.


Active Member
oh sir
i want to made it personaly
There are 3 main tasks to do:

1. Make a timer that times out in one hour.
2. Make a counter that counts 0-999
3. Make outputs to the I/O pins and interface to 7-segment disp.

3a. Simple - use 21 IO pins and connect 3x 7 seg directly.
3b. Hard - use 10 IO pins and multiplex 3x 7 seg disp.

Have you decided which MCU ?

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