Résumé :
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"Stepper Substitute The technology and science of timekeeping has an interesting history. Jeff gives an overview, and then shares the details of his project that uses a Microchip ATtiny45 MCU to replace the stepper drive circuitry that’s popular for quartz-based clock movements. There is no escape from the passage of time. While we may not be aware of its passage while sleeping, we find it has continued on its merry way without our conscious awareness. Steadily it moves, and from our vantage point we see what was, live in the present and look toward what is to come. We have come to measure it in many ways—by day, month, year, a lifetime. Before clocks or calendars, it became apparent for survival that we needed to pay attention to time. The whole universe is under its spell, and it defines how we spend our lives." (Extrait de Circuit cellar n°376)
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