Real Time Clock (DS1307) OS25B10 Lux - or Lumens per

Lux - or Lumens per Square Meter

The DS3231 maintains seconds

and the 0-9 value of the 'tens' place has 3 bits for the byte filled with the seconds value

but a measure of the scattering effect such particles have on light

Arduino Ethernet Shield  allows an Arduino board to connect to the internet

Real Time Clock (DS1307) OS25B10 Lux - or Lumens perIntroduction: The module based on DS1307, The DS1307 serial real time clock (RTC) is a low power, full binary coded decimal (BCD) clock calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an IC, bidirectional bus. The clock calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for