SparkFun gator: RTC for micro:bit Accessory Board

• SparkFun gator: RTC for micro:bit Accessory Board
• Features a supplemental data logging tool
• Offers an RV-3028 real-time clock (RTC) module
• Runs at about 40-60 nA at 3 V

The SparkFun gator: RTC for micro:bit Accessory Board is a supplemental data logging tool to be used in conjunction with the gator:log, part of SparkFun's gator:bit series of gator-clippable accessories designed for easy interface with the micro:bit or other microcontrollers. This tool allows a student to focus more on the experiment than watching a thermometer or stopwatch.

The gator: RTC core is an RV-3028 real-time clock (RTC) module from Micro Crystal, using a convenient I²C bus interface. The module enables you to track the year, month, date, weekday, hours, minutes, and seconds. It also includes an external event input with a handy time stamp function.

It is extremely low power, running at about 40-60nA at 3V. The gator: RTC provides four pads for power and data and a built-in, rechargeable 3V lithium coin cell battery.