[elecena] RTC Data Logger Shield - zmiany ceny The RTC Data Logger shield adds storage to an Arduino project. It supports SD, SDHC, or MicroSD TF cards and with a RTC onboard, and is compatible with Arduino. RTC Data Logger Shield - 8.90 USD https://elecena.pl/product/6056979/rtc-data-logger-shield 2016-05-07 RTC Data Logger Shield - 3.90 USD https://elecena.pl/product/6056979/rtc-data-logger-shield 2025-12-17