David's Engineering Notes
Notes on Electronics and Software: reminders, tips, sources [proton electron]
Nov 22, 2014
high precision real-time clock module
ChronoDot V2.1 High Precision RTC
$14.99
RTC includes battery, fits on protoboard, accurate to 1min/year, arduino or linux boards.
Data is accessed via i2c and outputs as BCD numbers.
Available at
MaceTech
and
AdaFruit
Newer Post
Older Post
Home
