The High Accuracy Pi RTC is based on the clock chip DS3231. The DS3231 is a low-cost, extremely accurate I2C realtime clock (RTC). It provides an RTC for Raspberry Pi via the I2C interface. With the ...

A Raspberry Pi HAT-style interface board that includes: As per the spec for the onboard 5V to 3.3V LDO, the I2C and 1-Wire interfaces are able to supply up to 1 amp of power to connected devices. If ...