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Results tagged with rtc
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user 46366
Questions regarding Real Time Clocks (RTCs) which can be a timekeeper IC used by microcontrollers, or using a microcontroller as an accurate timekeeper. Some have calendar, alarm, interrupt or heartbeat features, while some simply keep track of time since last programmed (Epoch timers are similar).
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How to turn on ATmega every 6 hours?
My system uses a Microchip MCP7940M RTC, which has a multifunction pin, that allows you to directly connect to the hardware interrupt. The chip communicates with the processor using I2C. …
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