Re: 555 countdown timer design question
Why would you use AC mains cycle counting if you're using a microcontroller, if you clock it at 50Hz/60Hz it'd only run 50-60 instructions per second and it would basically be unusably slow. If you're using a crystal with a microcontroller, you might well as use that.
If you mean using it with discrete electronics, you have to keep 6 bits of state per second, which means your discrete counter will balloon in logic size.
All unless you're using a FPGA or something, it doesn't make sense to use AC for time counting. Or if you're using a synchronous motor...
Originally posted by Curious.George
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If you mean using it with discrete electronics, you have to keep 6 bits of state per second, which means your discrete counter will balloon in logic size.
All unless you're using a FPGA or something, it doesn't make sense to use AC for time counting. Or if you're using a synchronous motor...
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