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Adafruit Adafruit DS3231 Precision RTC Breakout
Sale price10,05 €
Only 3 units left
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Adafruit Adafruit TPL5110 Low Power Timer Breakout
Sale price2,59 €
In stock, 8 units
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Adafruit Adafruit DS3231 Precision RTC - STEMMA QT
Sale price6,58 €
Only 2 units left
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Sparkfun Sparkfun Real Time Clock Module DS1307 RTC
Sale price5,69 €
Only 3 units left
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Sparkfun SparkFun Real Time Clock Module - RV-8803 (Qwiic)
Sale price6,20 €
Only 2 units left
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Sparkfun SparkFun Real Time Clock Module - RV-1805 (Qwiic)
Sale price7,71 €
In stock, 5 units
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A real-time clock (often abbreviated as "RTC" for real-time clock) is a component for measuring physical time in which internally generated time data is output via a data bus. A clock crystal (32.768 kHz) serves as the clock source. This can be integrated into the module or connected externally. An internal memory is used to store seconds, minutes, hours, etc. A significant advantage of RTCs, which they not only offer when used in PC or microcontroller systems, is their self-sufficient mode of operation: Time measurement continues for a certain period of time even without an externally supplied operating voltage. This is achieved by a current accumulator that continues to supply the RTC module even when the voltage is deactivated. We offer various shields, modules and complete sets related to NFC.