>NAME >VALUE >NAME >VALUE >NAME >VALUE 0 >NAME The PCF8523 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE DIP >NAME >VALUE RTC Temp Sensor i2c Temperature sensor. Uses internal base-emitter temperature coefficient. (less resolution) Buck Converter Chip There are 2 variants that must be carefully selected, a 3,3v and 5v version. Linear Regulator 3.3v Rotary DIP Ambient Light Sensor i2c Humidity Sensor