As you have correctly surmised, trying to detect a 1uS pulse by polling a port pin is not going to be reliable.
Use an external (or pin change) interrupt instead and you will not miss any of these short pulses.
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As you have correctly surmised, trying to detect a 1uS pulse by polling a port pin is not going to be reliable.
Use an external (or pin change) interrupt instead and you will not miss any of these short pulses.
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