ADE7953 Datasheet for mesurement of electrics variables with SPI, I2C or UART interface. It becomes with two current channels and a voltage channel.

Datasheet of a sensor SHT25 which is capable of communicating Temperature and Rel.Humidity through I2C

The PCF8563 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-li