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Qwiic Real Time Clock Module - module with the real time clock RV-1805

Real time clock (RTC) module. It allows you to read data about the date and time. Communication with the module takes place via the I2C interface. SparkFun BOB-14558

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ID: 571688

17,21€ gross (23% VAT)
13,99€ net

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Module with a real time clock (RTC) system RV-1805. The circuit has a very low current consumption (up to 22 nA) and has two built-in oscillators: 32.768 kHz quartz and an RC oscillator, which is adjusted every few minutes for better accuracy. The element supporting the operation of the module is a supercapacitor that provides up to 35 days of work without power supply and, unlike batteries, can be recharged. In the event that the user needs backup for a longer time, he can additionally connect a battery with a larger capacity. Communication with the module takes place via the I2C interface. There are two Qwiic connectors on the board. On the product page, there is also a user manual and an Arduino library.


  • Accuracy: ± 2.0 ppm
  • I2C address: 0xD2
  • Supercapacitor for emergency power
  • 2x internal oscillators
  • 2x Qwiic connector
  • Voltage: 1.5V to 3.6V
  • Current consumption: 22nA
  • Working temperature: -40°C to 85°C