Grove - RTC The RTC module is a member of Twig. It is based on the clock chip DS1307 which supports the I2C protocol. It uses a Lithium cell battery (CR1225). The clock/calendar provides seconds, m..
Mini RTC Module for Raspberry Pi This is a Mini Real-Time Clock module, it design for Raspberry Pi, but it also can be used to Arduino. Pluging it into Raspberry Pi GPIO interfac..