**[[data_logger|Data Logger]]** PCB
====== Real Time Clock (RTC) ======
===== Description =====
DS1307 IC, connected to standard SDA & SCL Pin on MEGA board with battery backup.
===== Used Pins =====
Digital Pin: **20, 21 (as SDA, SCL)**\\
Power Pin: GND, +5V (see [[data_logger_support|supported function]])\\ \\
{{:dl_1_0_0:board_pin_dl_rtc.png}}\\
===== Example =====
==== Jumpers ====
{{:dl_1_0_0:top-i2c_rtc_sqw.png}}
==== Code ====
PCB and component are tested with [[https://github.com/davidhbrown/RealTimeClockDS1307|RealTimeClock1307]] Arduino library.\\ \\
Please use example RealTimeClockDS1307_Test.pde\\